Iceland Spar with Chalcopyrite

Iceland Spar with Chalcopyrite

and blues as well as the more commonly encountered clear or pale white

They were recovered from deposits in Morocco and date back to the late Cretaceous Period

Fluorite crystals are well shaped

from prismatic crystals to fibrous wisps

from the middle Miocene around 12-16 million years ago

The herring-like fish of the genus Knightia were far and away the most abundant freshwater fish during this era

the crab fossil's color can vary from brown to gold depending on what minerals were present at time of fossilization

typically associated with granitic pegmatites

this piece consists of beautifully colored cluster of purple octohedral fluorite on a thick base of candle quartz - so named for the appearance of wax dripping down a candle down the crystal face

These incredible specimens of natural uncut aquamarine from Mount Little Xuebaodoing in Sichuan

Found in a variety of shapes and colors

Fluorite has long been used as a gemstone and is increasingly popular in the market as both natural specimens and cut gems