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or color-enhanced
in a variety of swirling and linear patterns
Silica-rich waters create hardened deposits that preserve coral skeletons
ranges in color from blue-green to green
shiny black with a golden sheen
Mica 6mm Round Green - 15-16 inch 16-inch Strands or color-enhancedMica is a mineral name given to a group of minerals that are physically and chemically similar. They are all silicate minerals, known as sheet silicates because they form in distinct layers. Micas are fairly light and relatively soft, and the sheets and flakes of mica are flexible. Mica is heat resistant and does not conduct electricity. There are 37 different mica minerals. The most common include: purple lepidolite, black biotite, brown phlogopite
US$ 231.00
US$ 1187.50
US$ 855.00
