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Indigo gabbro is a color variant of the igneous mineral
Jade has been used for tens of thousands of years
This effect is known as “labradorescence
with inclusions of iron oxide
It is believed by some to improve memory and increase analytical skills
Fossil Coral 12mm Coin 8-Inch Tucson Online Week 2 Indigo gabbro is a colorFossil Coral is the prehistoric fossilized remains of the invertebrate reef builders that live in tropical oceans. Silica rich waters create hardened deposits that preserve coral skeletons, resulting in fossils that are chalk white, tan, gray, and brown as well as pink, red and yellow orange.
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