Collection: 20 igneous rocks (60x90 mm)

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 thin sectionsof magmatic rocks acc. to collection P50 (small stones)  / P53 (bigger stones)Size: 28 x 48 mm. The slides are 28 x 48 mm and have coverslips. They are numbered and have adhesive labels indicating the exact name as well as the age and location of discovery. They are supplied in a slotted thin section case. A detailed contents list is included with each collection.A detailed contents list with locality and exact name is included with each collection, there are thin sections of stones included, like:Magmatite Rocks (f.e. Quartz rocks, Granites, Granodiorites, Syenites, Plagioclase Rocks, Foid Rocks, Mafites) and Volcanic Rocks (f.e. Rhyolites, Trachytes, Latites, Basaltes, Porphites & Andesites, Selbergites & Phonolites, Nepheline & leucite Rocks and Pyroclastics)Matching geological collections are available for all thin sections .

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 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.