NAME APOPHYLLITE – (KOH) Potassium Calcium Hydrous Silicate
Formula KCa4Si8O20(OH,F)•8H2O
Size 16 cm x 7 cm x 10 cm
Crystal System Tetragonal
Location Centreville Quarry, Fairfax Co., Virginia, USA
Data Acquired from Victor Yount, 1999
Museum # M818
Photographer Mary Sutherland