Geology

20 rock specimenssample size: 60 x 90 mmsorted in System-bloc collection boxes, including a wooden caseOur range includes many types of didactic collections suitable asreference material for petrographic courses across all educational levels.This collection is divided into igneous, sedimentary, and metamorphic rocks, which are arranged within these groups according to modern taxonomy. It includes, for example, the following rocks:granites, syenites, plagioclases, mafic rocks, rhyolites, trachytes, basalts, selbergites,tephrites, psephites, psammites, pelites, chemical and organic rocks,such as dolomite, anhydrite, and limestones. It also includes metamorphic rockssuch as marble, gneiss, and mica schist.Each specimen is labeled with its exact name, age, and locality. A System-bloc film is placed over each label to prevent scratches or staining.The rocks are numbered so they can be easily re-identified if one is removed or misplaced.The specimens of this collection are delivered in System-bloc collection boxes, which are arranged in order inside a wooden case. A detailed list of contents is included with each collection.Our collections are all handcrafted at our premises in Bonn.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 rocksspecimen size: 90 x 120 mmsupplied in System-bloc collection boxes, including wooden case.Our range includes many types of didactic collections suitable as reference material for petrographic courses across all educational levels.This collection is divided into igneous, sedimentary, and metamorphic rocks, which are arranged within these groups according to modern taxonomy. It includes, for example, the following rocks:granites, syenites, plagioclases, mafic rocks, rhyolites, trachytes, basalts, selbergites,tephrites, psephites, psammites, pelites, chemical and organic rocks,such as dolomite, anhydrite, and limestones. It also includes metamorphic rockssuch as marble, gneiss, and mica schist.Each specimen is labeled with its exact name, age, and locality. A System-bloc film is placed over each label to prevent scratches or staining.The rocks are numbered so they can be easily re-identified if one is removed or misplaced.The specimens of this collection are delivered in System-bloc collection boxes, which are arranged in order inside a wooden case. A detailed list of contents is included with each collection.Our collections are all handcrafted at our premises in Bonn.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.

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.

150 rocksSpecimen size: 60 x 90 mmorganized in System-bloc collection boxes; wooden case not includedThis collection is based on lecture notes and summarizes the most important rock types.It includes 63 igneous, 50 sedimentary, and 37 metamorphic rock types. (Minor changes are possible!)Each specimen is labeled with its exact name, age, and locality. A System-bloc film protects each label from scratches and dirt. All rocks in the collection are numbered to facilitate identification in case a specimen is misplaced.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 specimen.Our images are for reference only; when you purchase a collection, you will receive one 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.

100 rocksarranged stratigraphicallySpecimen: 60x90 mmsorted in System-bloc collector's boxes, wooden case 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 environments or large landmasses, climatic changes, and how life spread across Earth.Each specimen is labeled with its exact name, age, and locality. A System-bloc film covering each label prevents dirt or scratches.The rocks are numbered so that they can be easily re-sorted if a specimen is removed.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 specimen.Our images are for reference only; when you purchase a collection, you will receive one of equivalent quality.

20 rock samplesarranged stratigraphicallySpecimen size: 60 x 90 mmarranged in collection boxes, delivered in a wooden case.Typical 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 tell the story of life spreading across the Earth.All specimens are labeled with precise descriptions, as well as their age and location. A System-bloc film covers each label to prevent scratches or dirt.The rocks are numbered so they can be easily re-identified if a piece is removed. The collection is delivered in System-bloc boxes, which are arranged in a wooden case with a 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 are ever exactly alike.Due to technical limitations, the colors on your screen may differ from those of the original pieces.Our images are for illustrative purposes; upon purchase, you will receive a collection of equivalent quality.

20 rocksstratigraphically arrangedSpecimens: 90 x 120 mmsorted into collection boxes, delivered in a wooden case.In this collection, the evolutionary history of our planet is revealed through typical rocks from all geological formations. They bear witness to periods of increased volcanic or tectonic activity, vast oceanic expanses and enormous landmasses, climate changes, and tell the story of the evolution of life on Earth.Each specimen is labeled with a precise description, as well as its age and place of discovery. A protective film covers each label to shield it from scratches.All rocks are numbered so they can be easily re-identified if one is ever misplaced. The collection is delivered sorted into system-bloc collection boxes, which are stored in a wooden crate.A detailed list of contents is included with every collection.Our collections are handmade in our workshop in Bonn.Please note that rocks are natural products and no two piecesare ever exactly alike.Due to technical limitations, the colors on your screen may differ from those of the original pieces.Our images are for illustrative purposes; when you purchase, you will receive a collection of equivalent quality.

40 rock samplesstratigraphically arrangedspecimens: 60 x 90 mmsorted into collection boxes and delivered in a wooden case.This collection illustrates the evolutionary history of Earth through typical rock samples from all geological formations. They document periods of increased volcanic or tectonic activity, vast oceanic expanses or enormous landmasses, climate changes, and tell the story of how life spread across the Earth.The samples are labelled with tags indicating their exact name, age, and where they were found. A system-bloc film is placed over each label to protect it from scratches. All rocks are numbered so they can be easily re-identified in case one goes missing.The collection is delivered in system-bloc collection boxes, which are stored in a wooden box. A detailed list of contents is included with each collection.Our collections are handcrafted in our workshop in Bonn.Please note that rocks are natural products and no two piecesare ever exactly alike.Due to technical limitations, the colors on your screen may differ from those of the original pieces.Our images are for illustrative purposes; when you purchase, you will receive a collection of equivalent quality.

40 rocksarranged stratigraphicallySamples: 90x120 mmSorted into collection boxes, delivered in a wooden case.Rocks characteristic of each geological formation reveal the evolutionary history of planet Earth. They document periods of intense volcanic or tectonic activity, extensive marine areas or vast landmasses, climatic changes, and the expansion of life on our planet.The samples are supplied with labels indicating their exact name, age, and locality. A protective film shields each label from scratches.The rocks are numbered to facilitate easy re-identification should one ever be misplaced.This collection includes rocks arranged in system-bloc collection boxes and delivered packed in a nice wooden case.A detailed list of contents is included with each collection.All of our collections are handcrafted in-house.Please note that stones are natural products, and no two piecesare ever exactly alike.The photo is for illustrative purposes only; you will receive a collection of equivalent quality.

100 rocks.Sample pieces: 60 x 90 mmSupplied without wooden caseWe have selected particularly high-contrast rocks from sites around the world that impressively demonstrate the diversity of formations in the metamorphic, sedimentary, and igneous domains:46 igneous34 sedimentary, and20 metamorphic rocks.(Minor changes are possible!)Our range of systematically organized rock collections offers everything you need for petrographic education—from compact starter collections to comprehensive teaching collections for advanced courses.The collections include igneous, sedimentary, and metamorphic rocks, which are arranged within these categories according to current scientific classification.Each specimen is provided with a label containing information on name, age and locality. To protect against scratches, the label is additionally covered with a protective film.Thanks to numbering, the rocks can be easily identified and re-assigned should a specimen ever be misplaced.The collection is delivered in a clear, organized manner in sturdy System-Bloc collection boxes.A detailed list of contents accompanies every collection and ensures easy orientation.Our collections are handcrafted in-house.Please note that stones are natural products, and no two pieces are exactly alike.The photograph shown is for reference purposes; you will receive a collection of equivalent quality.

40 rock specimensSpecimens: 60 x 90 mmSorted into collection boxes and delivered in a wooden case.Includes approx. 17 igneous, 14 sedimentary, and 9 metamorphic rocks.With our small to large educational collections, we provide a solid foundation for both introductory and advanced petrography courses. Our collections are divided into igneous, sedimentary, and metamorphic rocks, and arranged within these groups according to modern systematics.All specimens are labeled with information indicating the name, age, and locality. To prevent scratches and dirt, all labels are protected by a film. The rocks are numbered so that they can be easily re-identified if one is ever misplaced.The specimens are delivered in System-Bloc collection boxes, which are in turn neatly arranged in a wooden case. A detailed inventory list is included with each collection. Our collections are handcrafted on our premises.Please note that rocks are natural products and no two pieces are ever exactly alike.The photo serves as an example; upon purchase, you will receive a collection of equivalent quality.

40 rocks.Specimens: 90 x 120 mmSorted into System-Bloc boxes, delivered in a wooden case.The set includes approximately 17 igneous, 14 sedimentary, and 9 metamorphic rocks.(subject to minor changes.)Our systematic rock collections offer a wide range:From basic compact collections to detailed teaching collections thatare suitable for both introductory and advanced petrography courses.The collections are clearly structured, with the rocks divided into igneous, sedimentary,and metamorphic groups and organized according to modern classification standards.Each specimen is numbered and labeled with both the exactname and the locality. The hand specimens are delivered in specialSystem-Bloc collection boxes, which are stored neatly in a sturdy wooden case.A detailed list of contents accompanies each collection for easyreference.Our collections are handcrafted in-house.Please note that rocks are natural products and no two pieceswill ever look exactly alike.The product photos are for reference; upon purchase, you will receive an equivalent collection.