Calcium Large fluorite
Periodic Table Poster   My periodic table poster is now available!Periodic Table PosterPeriodic Table PosterPeriodic Table Poster
3D3DLarge fluorite. (External Sample)
This is a large chunky fluorite crystals from the (now closed) mines in Southern Illinois.
Location: John Gray's Collection
Photographed: 7 December, 2004
Size: 8"
Composition: CaF2
Calcium