Collection: 15 natural Gemstones

Handpieces: approx. 20 x 20 mm eachSupplied in a plastic collector's kit.An affordable yet no less informative collection of twenty minerals commonly found in the Earth's crust. This collection contains typical examples of naturally occurring elements, sulfides, oxides, halides, carbonates, sulfates, and silicates. The set comes in a sturdy box divided into compartments.Its pieces, approximately 2 x 2 cm in size, are numbered according to an explanatory list of contents.Our collections are all handcrafted in-house. Please note that minerals are natural products and no two pieces ever look exactly alike.Due to technical limitations, the colors on your screen may differ from those of the original pieces.Our images serve as examples; upon purchase you will receive a collection of equivalent quality.

Only in german language available!

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.