Emerald

Emerald


Rila Mtn (Rila Planina), Kyustendil Oblast, Bulgaria

Item-No.: MIN0200
Price: 385.00 EUR 

Synonyms:  Agee
Variety of:  Beryl
IMA Status:  Not recognize
Classification:  Silicates, Cyclosilikates
Chemical formula:  Be3(Al,Cr)2Si6O18
Crystal system:  Hexagonal
Density (g/cm3):  2,63 - 2,80
Tenacity:  Brittle
Cleavage:  Indistinct
Fracture:  Conchoidal to splintery
Hardness (Mohs):  7,5 - 8
Colour:  Light green to dark green
Lustre:  Vitreous
Streak:  White
Transparency:  Transparent,  partly translucent
Application:  Precious stone, Gemstone