Color: Green, Blue, Yellow, Colorless, Pink

Molecular Weight: 537.50 gm

Environment: Mainly granitic pegmatites

Locality: Pala pegmatite District, San Diego Co., California for morganite. Columbia for emeralds. Russia for heliodor.

Name origin: From the ancient Greek, beryllos, signifying a "precious blue-green color of sea water" stone, but through later usage, applied only to beryl.

Crystal System: Hexagonal - Dihexagonal Dipyramidal

Cleavage: Imperfect

Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habits: Crystalline - Coarse - Occurs as well-formed coarse sized crystals., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Columnar - Forms columns

Hardness: 7.5-8

Luminescence: Non-fluorescent

Luster: Vitreous-Resinous

Streak: White