Geology

20 rock specimenssample size: 60 x 90 mmsorted into collection boxeswooden box includedWe offer a wide range of educational collections, from small to large, that serve as a foundation for petrographic courses at all educational levels.This collection is divided into igneous, sedimentary, and metamorphic rocks and is organized within these groups according to modern systematics.Included are the following rocks, for example: granites, syenites, plagioclases, mafic rocks, rhyolites, trachytes, basalts, selbergites, tephrites, psephites, psammites, pelites, chemical and organic rocks such as dolomite, anhydrite, and limestones, as well as metamorphic rocks such as marble, gneiss, and mica schist.Each specimen is labeled with its exact name, age, and location. A system-bloc film covers each label to prevent scratching.The rocks are numbered so that they can be easily re-identified in case a specimen is misplaced.All specimens in the collection are delivered in system-bloc collection boxes, which are in turn arranged in sequence within a wooden case. A detailed list of contents is included with every collection.The photo serves as an example; you will receive a collection of comparable quality.

20 rockshandpieces: 90 x 120 mmin collection boxincluding wooden caseOur range of systematic rock collections offers everything from small to large teaching collections, so that the basis for petrographic beginners as well as advanced courses can be found here. Our collections are divided into igneous, sedimentary and metamorphic rocks and within these groups are organized according to modern systematics.This collection includes, for example: Granites, syenites, plagioclase, mafites, rhyolites, trachytes, basalts, selbergites, tephrites, psephites, psammites, pelites, chemical and organic rocks such as dolomite, anhydrite and limestones, as well as metamorphic rocks such as marble, gneiss and mica schist.The hand specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The stones are numbered so that they can be easily reassigned if one is ever misplaced.The rocks are supplied in system-bloc collection boxes, which are arranged in sequence in a wooden box. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

Our basic geological collection consists of five sturdy plastic boxes divided into compartments,containing a total of 50 specimens covering the following topics:Minerals (talc, limonite, fluorite, calcite, pyrite, magnetite, hematite, quartz,mica, feldspar)Fossils (ammonite, wood, gastropod, crinoid stalk segment, coral, shark tooth,brachiopod, mammoth bone fragment, belemnite, sea urchin)Sedimentary rocks (loess, sandstone, flint, lignite, limestone, conglomerate,clay, shale, travertine, gypsum)Metamorphic rocks (chlorite schist, quartzite, mica schist, serpentinite,marble, gneiss, phyllite, amphibolite, granulite, eclogite)Volcanic & igneous rocks (slag, pumice, gabbro, tuff, rhyolite, diorite, granite,basalt, obsidian, pegmatite)The collection pieces are labeled and numbered according to an enclosed sheet in German and English.This collection is only available as a set!Size per piece: approx. 2 x 2 cm Fossils: approx. 1–3 cmDue to technical reasons, colors in product photos may vary slightly from those of the original piece.Our images are for reference only; upon purchase, you will receive a specimen of comparable quality.

100 rocksarranged stratigraphicallySpecimen: 60x90 mmin collector's boxeswooden box not includedTypical rocks from all geological formations reveal the evolutionary history of our planet. They document periods of increased volcanic or tectonic activity, extensive marine areas or large landmasses, climatic changes, and how life spread across the Earth.Each specimen is labeled with its exact name, age, and locality. A system-bloc film is placed over the respective label to prevent scratching. The rocks are numbered to allow for easy re-identification in case a specimen is misplaced.The photo serves as an example; you will receive a collection of equivalent quality.

10 rocksSpecimen: 60 x 90 mmsorted in collection boxesincluding wooden boxThis collection of 10 rocks features the most important examples of igneous, sedimentary, and metamorphic rocks: granite, gabbro, trachyte, basalt, diabase, tuff, sandstone, limestone, argillaceous schist, and biotite gneiss.Each specimen is labeled with its name, age, and locality. A system-bloc film covers each label to prevent scratching.The rocks are numbered to allow for easy re-identification in case a specimen is misplaced.The pieces in the collection are delivered in system-bloc collection boxes,which are in turn arranged in a wooden case. A detailed list of contentsis included with each collection.The photo serves as an example; upon purchase, you will receive a collection of equivalent quality.

10 rocks Samples: 90 x 120 mmsorted in collection boxesincluding wooden boxThis collection of 10 rocks comprises the most important examples of igneous, sedimentary, and metamorphic rocks: granite, gabbro, trachyte, basalt, diabase, tuff, sandstone, limestone, clay shale, and biotite gneiss.Each specimen is labeled with its exact name, age, and locality. A system-bloc film covers the respective label to prevent scratching.The rocks are numbered to allow for easy re-identification in case a specimen is misplaced.The pieces in the collection are delivered in system-bloc collection boxes, which are in turn arranged in a wooden case. A detailed list of contents is included with each collection.The photo is for illustrative purposes only; upon purchase, you will receive a collection of equivalent quality.This collection is handmade at our company in Bonn.

20 igneous rocksSpecimen size: 60x90 mmarranged in collection boxesincluding wooden boxOur range of systematic rock collections includes all sizes, from small to large educational collections, providing the foundation for both introductory and advanced petrography courses.This collection includes:Igneous (e.g., pegmatite, granite, granodiorite, syenite, plagioclasites, feldspathic rocks, mafic rocks) and volcanic rocks (e.g., rhyolite, trachyte, latite, basalt, porphyry, selbergite, nephelinite, and pyroclastic rocks).The specimens are provided with labels indicating their exact name, age, and locality. A protective film covers each label to prevent scratching. All of the rocks are numbered so they can be easily re-identified if one is misplaced.The rocks in this collection are delivered in system-bloc collection boxes, which are arranged in a wooden crate.A detailed list of contents is included with each collection.The photo serves as an example; you will receive a collection of equivalent quality.This collection is handcrafted at Krantz in Bonn.

20 igneous rockshand specimens: 90x120 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all variations from small to large teaching collections, providing the basis for petrographic beginner and advanced courses.This collection containsigneous rocks (e.g. pegmatite, granite, granodiorite, syenite, plagioclase, foid rocks, mafite) volcanic rocks (e.g. rhyolites, trachytes, latites, basalts, porphyrites, selbergites, nephelinites and pyroclastites)The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. All rocks are numbered, making it easy to identify them should one be misplaced. Supplied in system-bloc collectors' boxes which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 metamorphic rockshand pieces: 60x90 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all variations from small to large teaching collections, providing the basis for petrographic beginner and advanced courses.This collection containscontact rocks (e.g. fritted sandstone, fruit shale, chiastolite shale, hornfels, contact limestone)crystalline schists (e.g. gneiss, granulite, mica schist, phyllite, chlorite schist, talc schist, amphibolite & pyroxene, serpentinite, marble)The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The rocks are numbered making it easy to identify them should one be misplaced. All rocks of this collection are supplied in system-bloc collectors' boxes, which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 metamorphic rockshand specimens: 90x120 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all varieties from small to large teaching collections, providing the basis for petrographic beginner and advanced courses.This collection includes:contact rocks (e.g. fritted sandstone, fruit shale, chiastolite shale, hornfels, contact limestone)crystalline schists (e.g. gneiss, granulite, mica schist, phyllite, chlorite schist, talc schist, amphibolite & pyroxene, serpentinite, marble)Every hand specimen is labeled with its exact name, age and locality. A film is placed over each label to prevent scratching. A numbering system ensures that the stones can be easily identified if they are misplaced. This collection is supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 sedimentary rockshand pieces: 60x90 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all variations from small to large teaching collections, so that the basis for petrographic beginner and advanced courses can be found here.In this collection are included:Conglomerates and breccias - psephites (e.g. quartz conglomerate, breccia)Sandstones - Psammites (e.g. sand, sandstone, quartzite)Silt & clay rocks - pelites (e.g. clay, oil shale, loess)Carbonate rocks (e.g. limestone, chalk)Sediments (e.g. salt rocks, siliceous sediments such as flint, sedimentary phosphate rocks, residual rocks such as bauxite and coal)The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The rocks are numbered making it easy to identify them again if one has been misplaced. The pieces of this collection are supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 sedimentary rockshand specimens: 90x120 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all variations from small to large teaching collections, providing the basis for petrographic beginner and advanced courses.This collection contains:conglomerates and breccias - psephites (e.g. quartz conglomerate, breccia)sandstones - psammites (e.g. sand, sandstone, quartzite)silt & clay rocks - pelites (e.g. clay, oil shale, loess)carbonate rocks (e.g. limestone, chalk)sediments (e.g. salt rocks, siliceous sediments such as flint, sedimentary phosphate rocks, residual rocks such as bauxites and coal)The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. All rocks are numbered, making it easy to identify them should one be misplaced. Supplied in system-bloc collectors' boxes which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 rocksarranged stratigraphicallyhand specimen: 60 x 90 mmin collectors' boxessupplied in wooden caseCharacteristic rocks from all geological formations reveal the evolutionary history of our planet. They document periods of heightened volcanic or tectonic activity, extended marine areas or large land masses, climatic changes and how life evolved on Earth.The hand specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. A numbering system ensures that the stones can be easily identified if they are misplaced. This collection is supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with every collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 rocksarranged stratigraphicallyhand piece: 90x120 mmin collectors' boxessupplied in wooden caseCharacteristic rocks from all geological formations reveal the evolutionary history of our planet. They document periods of heightened volcanic or tectonic activity, extended marine areas or large land masses, climatic changes and how life evolved on Earth.The hand specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. A numbering system ensures that the stones can be easily identified if they are misplaced. This collection is supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with every collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

40 rocksarranged stratigraphicallyhand specimen: 60x90 mmin collectors' boxessupplied in wooden caseCharacteristic rocks from all geological formations reveal the evolutionary history of our planet. They document periods of heightened volcanic or tectonic activity, extended marine areas or large land masses, climatic changes and how life evolved on Earth.The hand specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. A numbering system ensures that the stones can be easily identified if they are misplaced. This collection is supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with every collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

40 rocksarranged stratigraphicallyhand specimen: 90x120 mmin collectors' boxessupplied in wooden caseCharacteristic rocks from all geological formations reveal the evolutionary history of our planet. They document periods of heightened volcanic or tectonic activity, extended marine areas or large land masses, climatic changes and how life evolved on Earth.The hand specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. A numbering system ensures that the stones can be easily identified if they are misplaced. This collection is supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with every collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

100 rocks.handpieces: 60 x 90 mmin collection boxeswithout wooden caseParticularly high-contrast rocks from worldwide localities were selected, which impressively demonstrate the diversity of formation in the metamorphic, sedimentary and magmatic areas: 46 igneous, 34 sedimentary and 20 metamorphic rocks. (Minor changes are possible!)Our range of systematic rock collections offers everything from small to large teaching collections to provide a basis for both beginner and advanced petrographic courses. The samples are divided into igneous, sedimentary and metamorphic rocks and within these groups are arranged according to modern systematics. The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The stones are numbered so that they can be easily reassigned if one is misplaced.The rocks of this collection are supplied in system-bloc collection boxes, a detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

40 rockshand pieces: 60 x 90 mmin collector's boxesincluding wooden caseContains approx. 17 igneous, 14 sedimentary and 9 metamorphic rocks. Our range of systematic rock collections provides the basis for petrographic beginner and advanced courses, from small to large teaching collections. These collections are subdivided into igneous, sedimentary and metamorphic rocks and organized within these groups according to modern systematics.Hand specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The rocks are numbered to allow easy identification if one is misplaced.Each piece is supplied in a system-bloc collection box, which in turn is arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

40 rocks.Hand pieces: 90x120 mmContains about 17 igneous, 14 sedimentary and 9 metamorphic rocks. From small to large educational collections, our range of systematic rock collections offers all gradients, so that foundations for petrographic beginners as well as for advanced studies can be found here. The collections are divided into igneous, sedimentary, and metamorphic rocks, and are arranged within these groups according to modern systematics. The hand specimens are numbered and have labels indicating the exact name and locality of discovery. They are supplied in system-bloc collection boxes, which in turn are arranged in sequence in a wooden case. A detailed contents list is included with each collection.

150 rocksSpecimens: 60 x 90 mmin collection boxeswooden box not includedA collection that summarises the most important rock types, based on lecture notes. It includes 63 igneous, 50 sedimentary, and 37 metamorphic types of rock.(Minor changes are possible!)From small to large educational collections, we offer numerous options suitable as a foundation for petrographic courses at all educational levels. Collections are divided into igneous, sedimentary, and metamorphic rocks and arranged within these groups according to the current classification system.Each specimen is labeled with its exact name, age, and locality. A system-bloc sheet is placed over the respective label to prevent scratching. The rocks are numbered to allow for easy re-identification in the event that a specimen is misplaced.All specimens in the collection are delivered in system-bloc collection boxes,and a detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.