Collection: 10 important rocks (60x90 mm)

10 mineralsSize: approx. 20 x 20 mmSupplied in a collection box with compartments.Outer dimensions: 22 x 7.5 x 3 cmTypical minerals from the oxide, sulfide, and sulfate classes, with explanatory and illustrated text as well as information on their places of origin.Included are: feldspar, calcite, pyrite, halite, fluorite, mica, magnetite, smoky quartz, barite, and hematite.All in a sturdy plastic display case with compartments.Our collections are handmade in-house. Please note that minerals 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 specimens.Our images are for illustrative purposes; when you purchase, you will receive a collection of equivalent quality.

20 metamorphic rocksSpecimens: 60x90 mmSorted into collection boxes and delivered in a wooden caseWe offer a wide variety of systematic rock collections. From small to large educational collections, we can provide the basis for both 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 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. This collection is 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. All our collections are hand-crafted in-house at Krantz, 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 sedimentary rocksSpecimens: 60x90 mmarranged in collection boxes, packed in a wooden case.Our range of systematic rock collections includes everything from small to large educational collections, providing the foundation for both 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, sedimentary phosphate rocks, residual rocks such as bauxite and coal)The samples are labelled with tags indicating the exact name, age, and locality. A protective film covers each label to prevent scratches. 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.The photo is for illustrative purposes only; you will receive a collection of equivalent quality. All of our collections are hand-crafted at the Krantz premises in Bonn.