Dark Brown Aragonite Sphere | 104 mm, 4.1 in | 1.71 kg Druzy or other natural scenes

or other natural scenes

for its chemical composition is between that of natrolite and scolecite

Name: Apophyllite and Stilbite Crystal

This is a strand of white Howlite beads with an overall length of 38 cm (15 inches)

As highlighed in the photos

Dark Brown Aragonite Sphere | 104 mm, 4.1 in | 1.71 kg Druzy or other natural scenesThe 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.