Fluorite Mixed on Matrix Quartz with color intensity usually deepest

with color intensity usually deepest at the termination or tip of each crystal

Amethyst has been sought after since ancient times as a gemstone and decorative object

incredibly brilliant pyrite and chalcopyrite

which over the course of millions of years becomes solid while retaining the semitransparent yellowish hue of tree sap

This naturally occurring form of relatively common pyrite remains highly sought after by collectors as a specimen or for use as a gem or in jewelry

Fluorite Mixed on Matrix Quartz with color intensity usually deepestFluorite 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