Copper Sphere 2" - large Rainbow Sapphire 200 pages with 400 high-quality

200 pages with 400 high-quality photos and 40 diagrams

collecting

In this kit you will find 6 Essential Rocks & Minerals

30 mm x 20 mm

66mm x 25mm x 7mm

Copper Sphere 2" - large Rainbow Sapphire 200 pages with 400 high-qualityMichigan's Keweenaw Peninsula is considered the most important locality in the world for pure native copper Mining began in 1845 and continued through 1982, and over 7 million tons of refined copper were recovered from the mines. At the turn of the 20th century it led the world in copper production and "Lake Copper" was the purity standard. The chemical symbol for copper is Cu. Beautiful shiny copper sphere, made from solid copper casting. 2" diameter