Fluorite

FluoriteFluorite 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

from the Upper Silurian age

Middle Devion period

Malachite is known for its deep green coloration

typically associated with granitic pegmatites

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

It is found in many sites across the world

Fluorite has long been used as a gemstone and is increasingly popular in the market

Each contains at least one (most several) clearly visible insect

which means it naturally occurs in its metallic form

and under optimal conditions these insects will be clearly visible within the fossilized amber pieces

A widespread and industrially important mineral

the so-called “Benz” calcite comes from specific formations in Hubei