Day Fluorescent Fluorite Large - B cut base This piece has been heat-treated

This piece has been heat-treated to form a crystal

Mica has a monoclinic crystal system and peels into sheets

This stone is primarily composed of green epidote and red piedmontite

You will receive the exact item shown in the pictures

formed when volcanic lava rich in silica cools rapidly and forms without the formation of crystals

Day Fluorescent Fluorite Large - B cut base This piece has been heat-treatedNatural Fluorite from England. This piece is "day fluorescent" green inside and develops into a dark blue when in the sunlight. Also fluorescent with a 365nm UV Flashlight. You will receive the exact item pictured Dimensions: 3. 5 L X 3 W X 2. 12 H inches Weight: 0. 26 lbs