Mineral-Gifts

Synthetically produced alum; loss of colour when exposed to sunlight due to water loss (dehydration).Size: approx. 5 cmColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Exceptional color! Beautiful large single crystals - synthetically cultivated. Caution: Do not place directly in front of a window, as exposure to sunlight may cause color loss due to dehydration. Size: approx. 5 cmColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Look forward to a calendar with completely new items in 2025!Even our loyal calendar regulars will get their money's worth, as we have found completely new specimens. Calendars are limited, so make sure you get your copy!Please note: There will be no fossil advent calendar this year. General information about the Krantz Adventskalender 2025:It is filled with minerals and rocks; the pieces are accompanied by a booklet with explanations for each specimen. Each day, the properties, types of formation, current applications and peculiarities are explained. Each rock is accompanied by a label with its exact name and location.The calendar does not contain tumbled stones, but rough stones or crystals.Packaged in a sturdy cardboard box (21 x 29 cm), 18 small boxes (3 x 4.5 cm) are included, as well as 6 larger boxes (approx. 4.5 x 6 cm) for Advent Sundays, St. Nicholas Day and Christmas Eve.Since you can reuse the boxes and tins in your own collection, the calendar is environmentally friendly. It is locally produced in Bonn, Germany.This calendar makes a wonderful gift for friends, family or for yourself. A must-have and a bargain for anyone even remotely interested in minerals.

Locality: BrazilSize: approx. 3 - 4 cmColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Locality: BrazilSize: approx. 2 cmColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Polished agate slice, colored.Some with a small hole as a pendant or for stringing up.Size: approx. 1-2 x 4-6 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

polished agate slice, natural coloring.Some with a small hole for stringing up.Size: approx. 1 - 2 x 4 - 6 cm Colors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

polished agate slice, natural coloring.Size: Ø approx. 6-8 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Locality: culturedSize: approx. 6 cmColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Necklace pendant made from polished amber.Size: approx. 2.5 cmColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive one piece of equivalent quality with your purchase.

Very pretty showpiece on a stable black display stand - very decorative with attractive dark crystal color. Great quality!Locality: UruguaySize: 14 x 16 x 9 cm (WxHxD)The display stand is 6.5 cm deep, 7 cm high and 9 cm wide.Overall, the piece is approx. 23.2 cm high.The colors in the product photos may differ slightly from those of the original piece for technical reasons.

Numerous beautiful crystals on a compact specimen.Locality: UruguaySize: approx. 5 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Numerous beautiful crystals on a compact specimen.Locality: UruguaySize: approx. 7 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Beautiful hand specimens, self-standing with nice dark colour, very good quality.If you wish, you can choose which piece you would like: please write the letter in the comments field. (B and C are already sold)Place of discovery: UruguaySize: ca. 7 x 8 x 5 cm(The picture is a sample. You will get a similar specimen.)

Apache tears are a variety of obsidian.Locality: MexicoSize: approx. 3 cmColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Polished palm stone.Locality: MadagascarSize: approx. 6 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Locality: Imilchil, Midelt province, Drâa-Tafilalet region, MoroccoSize: approx. 2 cmColor: yellowish with natural end surfaceColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Locality: Poona, IndiaSize: approx. 6 cmColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Locality: NamibiaSize: ca. 1 cm, supplied in boxColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Locality: MoroccoSize: approx. 3 - 4 cm Colors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Beautifully colored piece, partially with malachite.Locality: MoroccoSize: approx. 5 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Beautifully colored specimens, some with malachite.Locality: MoroccoSize: approx. 10 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Locality: culturedSize: approx. 3 cmColors on product photos may differ from those of the original specimen due to technical reasons.Our pictures are for reference only, upon purchase you will receive one specimen of comparable quality.

Locality: BrazilSize: approx. 2 cmpartly with matrixColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Material: Combarbalita from ChileSize: 2-3 cmmade in Peru.Due to the different coloring, each bunny figurine is unique.Colors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Location: Mina la Encontrada, Molvizar, Granada, SpanienSize: ca. 3,5 x 2 cmThe customer will receive a specimen of comparable quality.The colors on the photo may differ slightly from the original due to technical reasons.

Durango, Mexikoca. 4-6 cmThe picture is a sample. You will get a similar specimen.

Calcspar, a clear calcite crystal, has the property of refracting a beam of light into two separate beams, which creates an optical duplication. If you place the crystal on printed paper and look through it, the writing appears duplicated and offset against each other. Size: approx. 2-3 cmColors on product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Well-formed, triclinic crystal specimens.Locality: culturedSize: approx. 3 - 4 cmColors on product photos may differ from those of the original specimen due to technical reasons.Our pictures are for reference only, upon purchase you will receive one specimen of comparable quality.

Locality: MoroccoSize: approx. 4 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Locality: Chikwawa, MalawiSize: approx. 5 cmColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Locality: culturedSize: approx. 5 cmColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Locality: PeruSize: approx. 3-4 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Contains 15-21% iron, also contains other minerals such as peridot, bronzite, pyroxene, nickel and aluminumLocality: Errachidia province, MoroccoSize: approx. 1-2 cm in a box, beautifully packagedColors on product photos may differ from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of equivalent quality with your purchase.

natural.Locality: Michigan, USASize: approx. 2-3 cmColors on product photos may differ from those of the original specimen due to technical reasons.Our pictures are for reference only, upon purchase you will receive one specimen of comparable quality.

Locality: Michigan, USASize: approx. 2-3 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Locality: Michigan, USASize: approx. 5 cmColors on product photos may differ from those of the original specimen due to technical reasons.Our pictures are for reference only, upon purchase you will receive one specimen of comparable quality.

Pointed crystals on limonite.Particularly beautiful due to the intense color and the multiple intergrowths of the crystals.Locality: Tasmania, AustraliaSize: approx. 5 - 7 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Crystal formation with characteristic leaf structures.Locality: New Mexico, USASize: approx. 6 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a specimen of equivalent quality with your purchase.

Black-green double terminated crystal.Locality: MaliSize: approx. 5 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a specimen of equivalent quality with your purchase.

Large, beautiful octahedral fragment with a particularly intense color.Locality: ChinaSize: approx. 2-3 cmColors on product photos may differ from those of the original specimen due to technical reasonsOur pictures are for reference only, upon purchase you will receive one specimen of comparable quality.

Locality: Mandrosonoro, Ambatofinandrahana, Amoron'i Mania, MadagascarSize: approx. 4 x 2 x 1.5 cmColors on product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Locality: AlgeriaSize: 2-3 cm on base 2 x 2 cmYou only recive one speciment with base and label.A fulgurite forms when lightning strikes sandy, silica-rich ground. The intense heat of the lightning (up to about 30,000 °C) instantly melts the sand, which then cools and solidifies into hollow, glassy tubes. These structures preserve the path of the lightning through the ground.Colors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

0,5 - 1 cm Granat crystal on Matrix (2-4 cm)from NamibiaThe picture shows some examples of the product. You get a single specimen of comparable quality.

Locality: Alcanadre, Ebro-Becken, La Rioja, SpainSize: ca. 3-6 cmColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Small glass flacon filled with gold leaf.2 - 2,5 cm in diameter and ca. 3cm highThe photo serves as an example illustration. You will receive a copy of comparable quality.

Locality: Burgos, SpainSize: 5-7 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Glass opal on volcanite.Locality: Kopasz Hill, Tarcal, Tokaj district, HungarySize: approx. 2-3 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a specimen of equivalent quality with your purchase.

A beautiful, small iron-nickel meteorite.The majority of meteorites originate from asteroid belts located between Mars and Jupiter.On average, the distance to these belts ranges around 190 million kilometers. Their weight is immense: a solid sphere of this material with a diameter of just under 3 meters would weigh around 100 tons!It is estimated that this largely unaltered material is approximately 4.5 billion years old. None of the rocks on Earth are of comparable age.Following tips from indigenous people, Spanish colonialists discovered scattered fragments of an iron meteorite on a vast plain in Argentina in 1576. The meteorite was named after its discovery site, which the Spanish conquerors called “Campo del Cielo”—“Field of Heaven.” However, since their campaigns were primarily focused on looting gold or silver, the site was initially forgotten.Much later, researchers discovered that this iron was of meteoritic origin, and we now know that a large iron meteorite struck this area approximately 5,000 years ago.Locality: ArgentinaSize: approx. 1 cmPlease note: Iron meteorites contain a certain amount of nickel. People with nickel allergies should avoid direct skin contact or wear rubber gloves when handling them.Colors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a specimen of equivalent quality with your purchase.

Beautiful, small iron meteorite.Supplied in a collector's box.Locality: Sikhote-Alin Mts., RussiaSize: approx. 2 cmWeight: 7gSize of box: approx. 3.5 x 5.5 cmThis is a fragment of an iron meteorite which fell on 12 February 1947 over Eastern Siberia close to the Sikhote-Alin Mountains, in front of more than 240 eyewitnesses. In an air burst, thousands of fragments created over one hundred impact craters in the permafrost soil. The largest crater of 6 meters depth measures 26 meters in diameter, sound and light of the largest meteorite fall in recent times could be seen in 300km distance!In this meteorite event, fragments were severely warped and formed sharp edges, which is why they're referred to as "shrapnels".The Sikhote-Alin meteorite was made up of 93% iron and likely used to be an asteroid which got deflected from its original orbit. Before entering Earth's atmosphere, it's estimated to have weighed around 100 tons, 70 of which crashed onto Earth. A collective 30 tons have been found as scattered fragments of various sizes and weight.Note: Iron meteorites contain a certain amount of nickel. People with nickel allergies should avoid direct skin contact or wear rubber gloves when handling them.Colors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a specimen of equivalent quality with your purchase.

Locality: Dominican RepublicSize: approx. 2 - 3 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Locality: AustraliaSize: approx. 1 cmColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Marcasite nodule. In the past this stone was used to light fires and you can try it yourself:  After breaking the nodule, use a flint stone or a piece of iron to hit the "golden" part and see the sparks fly.Safety first: please wear protective glasses!

Locality: Frascati, Rome, ItalySize: ca. 1 cmColors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Locality: Albacete, Castilla-La Mancha, SpainSize: approx. 2 - 3 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Mixed lot of 10 tumble stones (each ca. 1-2 cm).Without any data on locality or determinantion.For example for advent calendars, birthday gifts etc.The photographs are example pictures.

Mixed lot of 3 tumble stones (each ca. 3-4 cm).Without any data on locality or determinantion.For example for advent calendars, birthday gifts etc.The photographs are example pictures.

Mixed lot of different kinds of rough stones (ca. 2-5 cm).Without any data on locality or determinantion.For example for advent calendars, birthday gifts etc.The photograph is an example picture.

Locality: PakistanSize: approx. 5-6 mm; approx. 0.5 - 0.7ctColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Locality: Imider (Imiter), Tinghir province, MoroccoSize: approx. 0.5 cm Supplied in a box.Colors in product photos may differ slightly from those of the original specimen for technical reasons.Our pictures are for reference purposes, you will receive a specimen of equivalent quality with your purchase.

Locality: culturedSize: approx. 5 cm, incl. matrixColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Color: redLocality: culturedSize: approx. 5 cm (incl. matrix)Colors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a specimen of equivalent quality with your purchase.

Locality: Mount Bromo, Tengger mountains, East Java, IndonesiaSize: 2-3 cmColors on product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, you will receive a sample of comparable quality with your purchase.

Large, naturally grown pyrite cube found at the famous site of Navajun in Spain.Cubic crystal shape.Discovery site: Navajun, SpainEdge length: 2-3 cmThe photo serves as an example. You will receive a specimen of comparable quality!

Locality: Navajún, La Rioja region, SpainSize: approx. 5 cmColors in product photos may differ slightly from those of the original specimen due to technical reasons.

Small geode, each in two halves, as they have already been opened, with pretty quartz crystals.This natural product may vary in shape and color from piece to piece. Each pair is unique!Quartz geodes are formed in air pockets within the rock, for example in volcanic environments but also in sedimentary rock.Due to various geological processes, this bubble is lined with crystals or other mineral or fossil substance. Locality: MoroccoTotal size of geode: approx. 3-4 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Polished globe made of Rhodonite.Size: Ø 5 cmColors in product photos may differ from those of the original specimen for technical reasons.

Locality: BrazilSize: approx. 3 cmColors on product photos may differ from those of the original specimen due to technical reasonsOur pictures are for reference only, upon purchase you will receive one specimen of comparable quality.

Beautiful finger-sized crystal in good quality - naturally grown.Locality: BrazilSize: approx. 5 - 7 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Locality: NamibiaSize: approx. 6 cmColors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive a specimen of comparable quality with your purchase.

Polished globe made of rose quartz from Namibia.Size: Ø approx. 20 x 14,6 x 6,5 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Polished globe made of rose quartz from Namibia.Size: Ø approx. 3-4 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Polished globe made of rose quartz from Namibia.Size: Ø approx. 7,8 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Polished globe made of rose quartz from Namibia.Size: Ø approx. 8 cmColors in product photos may differ from those of the original specimen for technical reasons.

Polished globe made of rose quartz from Namibia.Size: Ø approx. 10 cmColors in product photos may differ from those of the original specimen for technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Very beautiful, intricate crystal aggregates.Locality: Kipushi, Haut Katanga, CongoSize: approx. 1cmSupplied in a small box.Colors on product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, when purchasing you will receive a specimen of equivalent quality.

Ideal as a gift or as an activity for a child's birthday party, for example.The set contains: 1 piece of raw amber1 textile bandsandpaperDescription text with instructionsColors in product photos may differ slightly from those of the original specimen due to technical reasons.Our pictures are for reference only, you will receive one piece of equivalent quality with your purchase.