3.8" Blue, Botryoidal Hemimorphite - 79 Mine, Arizona

This is a beautiful, sky-blue hemimorphite specimen from the 79 Mine in Arizona, USA. It has a beautiful sky-blue coloration, formed as a botryoidal lining within the small rock cavities.

It comes with an acrylic display stand.

Hemimorphite is a basic hydrous zinc silicate with the chemical composition Zn4Si2O7(OH)2 · H2O. It earned its name from the Greek terms that best define its crystal structure. It has two different terminations on each side of the crystal, hence the inclusion of the greek terms "hemi", meaning half, and "morph", meaning shape. The crystal formations can range anywhere between a crystal druze or botryoidal formation to radiating acicular crystals and more. Hemimorphite has been found in shades of white, beige, light brown, and a bright, electric blue. It can also form as yellow and green crystals on rare occasions.

Prior to 1803, hemimorphite and smithsonite were thought to be the same mineral, called "calamine". However, further scientific research concluded that these were two distinct minerals.
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DETAILS
SPECIES
Hemimorphite
LOCATION
79 Mine, Arizona, USA
SIZE
3.8x3.8"
ITEM
#64211