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sometimes including growth rings
which over the course of millions of years becomes solid while retaining the semitransparent yellowish hue of tree sap
resulting from the oxidation of its copper and sulfide components
As a mineral specimen or gemstone Barite can be found in many colors including vibrant reds
Our specimens consist of fine crystals spread across a matrix in shades of both blue and green
Fluorite Mixed on Matrix Stalactite sometimes including growth ringsFluorite is one of the most variable of all crystalline minerals, occurring in shades of blue, green, purple, red and many other colors corresponding to their physical makeup and conditions when the mineral was formed. The name fluorite comes from its use as a flux, or chemical cleaning agent, in iron smelting and other metallurgy. Pure fluorite is clear, but most specimens have vivid color due to various impurities and are often fluorescent. With a
