Dark Brown Aragonite Sphere | 104 mm, 4.1 in | 1.71 kg Druzy This piece is a beautiful

This piece is a beautiful fragment that displays extremely well and is a must type in any collection

it measures 9

Name: Apophyllite and Stilbite Crystal

for its chemical composition is between that of natrolite and scolecite

As highlighed in the photos

Dark Brown Aragonite Sphere | 104 mm, 4.1 in | 1.71 kg Druzy This piece is a beautifulThe 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.