Editing Internet Texts/Gemstones/Amblygonite

Amblygonite

edit

The mineral was first discovered in Saxony (Germany) and named from the Greek amblus (blunt) and gonia (angle) because of the blunt angle between the cleavages. It is usually white or creamy, but can also be colorless, yellow, green, blue, pink and grey.

 
Amblygonite

Basic properties

edit
Composition (Li,Na)AlPO4(F,OH)
Class Phosphates
Crystal system Triclinic
Mohs' hardness 5,5-6
Fracture Uneven, sub-conchoidal
Cleavage Perfect
Lustre Glassy to pearly
Streak White
Localities Brazil, France, Sweden, Canada, USA