NAME GYPSUM SAND CRYSTALS           Hydrous Calcium Sulfate
Formula CaSO4  2H2O
Size 16 cm x 12 cm x 10 cm
Crystal System Monoclinic
Location Chihuahua, Mexico
Data Acquired from  The Treasure Chest, Aberdeen, Maryland, 1979
Museum # K408
Photographer Robert Klopfer / Alexander Kopylov