Brown Aragonite Sphere | 99 mm, 3.9 in | 1.4 kg Apatite The National Bank of Liberia

The National Bank of Liberia made 999 of these $10

Size: 6x4mm

Tetrahedrite crystals are fascinating minerals known for their distinctive tetrahedral shape and shiny

Product ID: AMGR21432-34

Olivine is a mineral that is commonly found in the Earth's mantle and is one of the first minerals to crystallize as magma cools

Brown Aragonite Sphere | 99 mm, 3.9 in | 1.4 kg Apatite The National Bank of LiberiaThe principal member of the Aragonite Group, aragonite is the second most common polymorph of natural calcium carbonate (the most common is calcite). It is significantly less widespread and abundant than calcite and is formed under a much narrower range of physiochemical conditions. It is metastable relative to calcite and often converts to calcite accompanying changes in the environment. It is nearly always a low temperature, near surface mineral.