Classroom collection: 30 rocks & 10 rockforming minerals

Only in german language available

Format: DIN A1 (59.4 × 84.1 cm)Superb print quality on environmentally friendly 200g paperlightfastmatt varnish-coatedOnly available in German!In 1869, Dmitri Mendeleev and Lothar Meyer developed the periodic table we know today. The chemical elements are arranged in increasing order according to their atomic number and depending on their chemical properties in periods and groups.This poster shows the most important data of each element: the relative atomic mass, melting point, covalency radius, ionization energy, electronegativity according to Pauling, important oxidation numbers or the electron configuration. As such, it is an important tool for school and university. Key trends in the periodic table are illustrated using overview diagrams.A large number of available image files of pure elements were reviewed and a representative image for each element was included. In the case of colorless gases, we have opted for the representation of the respective fluorescent tube light. Colors in product photos may differ from those of the original item for technical reasons.Our pictures are for reference only, you will receive a piece of equivalent quality with your purchase.

Our bestselling hand lens!High-quality folding magnifier with chrome-plated housing and black lens frame.Lens diameter: 20 mmaplanatic* with 10x magnification2-lens systemsupplied with leather caseeyelet for attaching a (lanyard) strapHow do I use a (geological) hand lens correctly?Click here to watch our short YouTube video for tips!*aplanatic: This magnifier corrects spherical aberration and distortion and therefore provides a good image. Colors on product photos may differ from those of the original product due to technical reasons.Our pictures are for reference only, you will receive a product of equivalent quality with your purchase.

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.