Hydroxylapatite with Crandallite & Englishite

Availability

Sold

Size

8 x 6 x 3 cm - Sm Cabinet 

Formula

Ca₅(PO₄)₃OH (RRUFF)

Locality

Little Green Monster mine, Clay Canyon, Fairfield, Utah Co., Utah, United States

Tagged

phosphate

Colorless to light blue tiny crystals of hydroxylapatite in a 1.5cm vug of Crandalite concretion. It was originally called "lewistonite', an old discredited mineral now known to be in the apatite group. Note the Arthur Montgomery label. Montgomery along with George English brought this locality into prominence. The backside I believe is an Englishite crystal to 2mm. This is a historic specimen from the Philadelphia Academy of Natural Sciences.

Antique Specimen