Petrography

This collection is only sold as a complete set!Our basic geology collection includes 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 and igneous rocks (slag, pumice, gabbro, tuff, rhyolite, diorite,granite, basalt, obsidian, pegmatite)This collection's specimens are explained and numbered according to an enclosed sheet in German and English.Specimen size: approx. 2 x 2 cm Fossils: approx. 1–3 cmAll of our collections are handcrafted in-house.Please note that rocks are natural products and no two pieces will ever look exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original piece.Our images are provided for reference; upon purchase, you will receive a collection of comparable quality.

20 rock-forming mineralsSpecimens: approx. 20 x 20 mmin a plastic collector's boxcan be paired with P05This collection contains: quartz, microcline, albite, leucite, sodalite, diopside, augite, actinolite, hornblende, olivine, muscovite, biotite, calcite, magnesite, andalusite, sillimanite, disthene, staurolite, epidote, and garnet.The pieces are numbered according to an explanatory list of contents.Our collections are handcrafted in our workshop in Bonn. Please note that rocks are natural products and no two pieces will ever look exactly alike.Colors in product photos may vary slightly from those of the actual piece due to technical reasons. Our images are provided as reference; upon purchase, you will receive a collection of equivalent quality.

10 rock-forming minerals30 rock samples specimen size: approx. 20 x 20 mmin two plastic collection boxes With its combination of 10 rock-forming minerals and 30 rock samples, this collection explains the most important concepts in petrography and allows interested individuals to independently practice rock identification exercises. An affordable collection, ideal for use in school classrooms. The collection is delivered in two sturdy plastic boxes. All specimens are numbered according to an explanatory list of contents. Our collections are handcrafted at Dr. F. Krantz in Bonn. Please note that minerals are natural products and no two specimens are ever exactly alike. Colors in product photos may vary slightly from those of the actual product due to technical reasons. Our images are for reference; upon purchase, you will receive a collection of equivalent quality.

10 rocksSpecimen size: 60 x 90 mmsorted in System-bloc collection boxes, including wooden caseThis 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.Our collections are handcrafted in-house.Please note that stones are natural products, and no two pieces are exactly alike.Due to technical limitations, the colors in product photos may vary slightly from those of the actual item.Our images are for reference only; when you make a purchase, you will receive a collection of equivalent quality.

10 rocks Samples: 90 x 120 mm eachsorted in System-bloc collection boxes, delivered in wooden caseThis 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.Our collections are handcrafted in-house.Please note that stones are natural products, and no two pieces are exactly alike.Due to technical limitations, the colors in product photos may vary slightly from those of the actual item.Our images are for reference only; when you make a purchase, you will receive a collection of equivalent quality.

20 igneous rocksSpecimens: 60x90 mmsorted in System-bloc collection boxes, including a wooden caseOur range of systematic rock collections provides the foundation for both introductory and advanced petrography courses.This collection includes:magmatic rocks (e.g., pegmatite, granite, granodiorite, syenite, plagioclasites,foid rocks, mafic rocks) andvolcanic rocks (e.g., rhyolite, trachyte, latite,basalts, porphyrites, selbergite, nephelinite, and pyroclastic rocks)The specimens are labeled with tags providing precise identification, age, and locality. A System-bloc protective film covers each label to prevent scratching and stains.The rocks are numbered so that they can be easily re-identified if a specimen is removed.This collection is delivered in System-bloc collection boxes, which are arranged inside a wooden case. A detailed list of contents is included with each collection.Our collections are handcrafted in-house.Please note that rocks are natural products and no two pieces ever look exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original piece.Our images serve as a reference; when you purchase a collection, you will receive one of equivalent quality.

20 igneous rockssample size: 90 x 120 mmsorted into collection boxes and delivered in a wooden caseWe offer a wide variety of systematic rock collections and teaching collections that provide a solid foundation for introductory and advanced petrography courses.This collection includes:magmatic rocks (e.g., pegmatite, granite, granodiorite, syenite, plagioclasites,foid rocks, mafic rocks)volcanic rocks (e.g., rhyolite, trachyte, latite, basalt, porphyry, selbergite,nephelinite, and pyroclastic rocks)The rock specimens are labeled to indicate their exact name, age, and locality. System-bloc film is covering each label to prevent scratches and staining. All rocks are numbered so they can be easily re-identified if one of the specimens is removed.The collection is delivered arranged in System-bloc collection boxes, which arestored in a wooden crate. A detailed list of contents is included with each collection.Our collections are handcrafted in-house.Please note that rocks are natural products and no two pieces will ever look exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original piece.Our images serve as a reference; when you purchase a collection, you will receive one of equivalent quality.

20 metamorphic rocksSpecimens: 60x90 mmarranged in System-bloc collection boxes and delivered in a wooden caseWe offer a wide variety of systematic rock collections and teaching collections that provide a solid foundation for introductory and advanced petrography 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)All rock specimens are labeled to indicate their exact name, age, and locality. The System-bloc film covering each label prevents scratches and staining.The rocks are numbered so they can be easily re-identified if one of the specimens is removed.The collection is delivered arranged in System-bloc collection boxes, which arestored in a wooden crate.A detailed list of contents is included with each collection.Our collections are handcrafted in-house at Krantz in Bonn.Please note that rocks are natural products and no two pieces will everlook exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original piece.Our images serve as a reference; when you purchase a collection, you will receive one of equivalent quality.

20 metamorphic rocksspecimen size: 90x120 mmassembled in System-bloc collectors' boxes and delivered in a wooden case.We offer a wide variety of systematic rock collections and teaching collections that provide a solid foundation for introductory and advanced petrography 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)All rock specimens are labeled to indicate their exact name, age, and locality. A System-bloc film covering each label prevents scratches and staining. The rocks are numbered so they can be easily re-identified if one of the specimens is removed.The collection is delivered arranged in System-bloc collection boxes, which arestored in a wooden crate.A detailed list of contents is included with each collection.Our collections are handcrafted in-house.Please note that rocks are natural products and no two pieces will everlook exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original piece.Our images serve as a reference; when you purchase a collection, you will receive one of equivalent quality.

20 Sedimentary RocksSpecimens: 60x90 mmorganized in collection boxes, contained in a sturdy wooden caseOur range of handcrafted, systematic rock collections includes a variety of teaching collections—from small to large—that serve as a great foundation for introductory and advanced petrography courses.This collection includes:Conglomerates and breccias – psephites (e.g., quartz conglomerate, breccia)Sandstones – psammites (e.g., sand, sandstone, quartzite)Silt and 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, sedimentaryphosphate rocks, residual rocks such as bauxite and coal)The hand specimens are labeled with tags that provide an exact description, as well as their age and location of discovery. A System-bloc film is placed over each label to prevent scratching or soiling.The rocks are numbered so they can be easily re-identified if a piece is removed. This collection is delivered in System-bloc boxes, which are arranged in a wooden case with hinged lid.A detailed list of contents is included with each collection.Our collections are handcrafted in-house.Please note that rocks are natural products and no two pieces will ever look exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the actual piece.Our images are provided for reference; upon purchase, you will receive a collection of equivalent quality.

20 sedimentary rocksSpecimen size: 90x120 mmassembled in collectors' boxes, delivered in a wooden caseOur range of handcrafted, systematic rock collections includes a full spectrum of educational collections—from small to large—that serve as a  great foundation for both introductory and advanced petrography 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 labelled with tags indicating the exact name, age, and locality. A protective film covers each label to prevent scratches and staining. All rocks are numbered so they can be easily re-identified if one is misplaced. The collection is delivered in system-bloc collection boxes arranged inside a wooden crate.A detailed list of contents is included with every collection.Our collections are handcrafted in-house.Please note that rocks are natural products and no two pieces are ever exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original piece.Our images are provided for reference; upon purchase, you will receive a collection of equivalent quality.

20 volcanicsspecimen size: 20 x 20 mmin a plastic case with 20 compartments Included are, for example: diabase, basalt, porphyry, andesite, volcanic ash, obsidian, and rhyolite.  The specimens are numbered according to an explanatory list of contents.Our collections are handcrafted by Dr. F. Krantz in Bonn.  Please note that minerals are natural products and no two pieces are ever exactly alike. Due to technical limitations, colors in product photos may vary slightly from those of the actual specimen. Our images are provided as reference; upon purchase, you will receive a collection of equivalent quality.

30 MineralsSpecimen size: 60 x 60 mmsorted in collection boxes, supplied in a wooden caseThis collection showcases 30 of the most important rocks-forming minerals,as described in standard works on petrography.Making it an indispensable resource for introductory petrography courses.Contents: Quartz, 2 feldspars, 2 feldspar representatives, 2 representatives of the sodalite group, 4 pyroxenes, 4 amphiboles, olivine, 4 micas, kaolin, 3 carbonates, 6 minor constituents (including heavy minerals). All specimens are labeled with information including their exact names, age, and localities. These labels are protected from dirt and scratches by System-bloc film. Every mineral is numbered so that they can be easily re-identified if one is removed from the collection.A detailed list of contents is included with every collection.Our collections are handcrafted at our facility in Bonn.Please note that rocks are natural products and no two pieces everlook exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the actual item.Our images are intended as a reference; upon purchase, you will receive a collection of equivalent quality.

large collection of polished ore sectionsSize/piece: Ø 22 mm  Delivery: Includes micromount boxes and a wooden case.  detailed inventory list includedThe ore samples are embedded in clear polyester resin and polished on one side.  All specimens have a diameter of 22 mm. They are numbered, labeled, and packaged in clear plastic containers. The collection is shipped in a wooden box and comes with a detailed inventory list. Contents include: copper, bismuth, sphalerite, chalcopyrite, enargite, cinnabar, antimonite, nickelite, galena, covellite, stromeyerite, pyrite, marcasite, skutterudite, magnetite, franklinite,  hematite, goethite.Please understand that the production of mineral ore sections by hand takes a certain amount of time! Colors in product photos may vary slightly from those of the original specimen due to technical reasons. Our images serve as a reference; when you purchase, you will receive a collection of equivalent quality.

20 rock specimensSpecimen size: 20x20 mmsupplied in a compartmentalized plastic case This collection was created to illustrate basic petrographic concepts.  It features twenty typical examples of igneous, sedimentary, and metamorphic rocks. Distributing several collections among the students creates ideal conditions for engaging petrography lessons. The specimens are numbered according to an explanatory list of contents.Our collections are handcrafted at Dr. F. Krantz in Bonn. Please note that rocks are natural products and no two specimens are ever exactly alike.Colors in product photos may vary slightly from those of the actual specimen due to technical reasons. Our images are provided as reference; upon purchase you will receive one collection of equivalent quality.

20 Oresaverage size: 45x60 mmin collector's boxesstored in a wooden crateOur small ore collection contains 20 of the most important raw materials used in the production of pure metals and alloys. It features the most common iron and steel refining ores as well as Cu, Pb, Zn, and Al ores.High-quality specimens in typical formation. Each collection comes with an explanatory booklet that lists the chemical composition, global deposits, and areas of application.The specimens are numbered and labeled. They are delivered in ‘system-bloc’ collection boxes, stored in a wooden crate.Our collections are handcrafted on our premises.Please note that stones are natural products and no two pieces are ever exactly alike.Due to technical limitations, the colors in product photos may vary slightly from those of the actual item.Our images are for reference only; when you make a purchase, you will receive a collection of equivalent quality.

20 oresaverage size: 60 x 90 mmsorted in System-bloc collection boxesThis small ore collection contains 20 of the most important raw materials for production of pure metals and alloys. It includes the most common iron and steel-refining ores as well as Cu, Pb, Zn, and Al ores.All specimens are rich in mineral content and exhibit typical forms. Each collection comes with an explanatory booklet detailing the chemical composition, global deposits, and areas of application.The specimens are numbered and labeled. Our collections are handcrafted within our own facility.Please note that rocks are natural products and no two specimens are ever exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original specimen.Our images serve as a reference; when you purchase a collection, you will receive one of equivalent quality.

This collection, based on lecture notes, summarizes the most important rock types.63 igneous rocks50 sedimentary rocksand 37 metamorphic rocks (small changes possible)Our range of systematic rock collections, featuring a selection of various classroom collections, provides everything needed to lay the foundation for both introductory and advanced petrography courses. The collections are divided into igneous, sedimentary, and metamorphic rocks and, within these groups, arranged according to modern systematic classification. All specimens are numbered and labeled with their exact designation and locality.They are delivered in System-bloc collection boxes.A detailed list of contents is included with each collection.Our collections are handcrafted in-house in Bonn. Please note that rocks are natural products and no two pieces are ever exactly alike. Due to technical limitations, colors in product photos may vary slightly from those of the actual specimen. Our images are for reference only; when you purchase a collection, you will receive one of equivalent quality.