Bromargyrite
Image: Robert M. Lavinsky (CC BY-SA 3.0)
Mineral NameBromargyrite
Chemical FormulaAgBr
Mohs Hardness1.5
Crystal Systemcubic
Lusteradamantine
Streak Colorwhite
Cleavagenone
Fractureconchoidal
Specific Gravity6.47
Colorsyellow, green, grey, brown, colorless
Transparencytransparent
Type LocalityBroken Hill, New South Wales
Mineral Grouphalides
Usescollector, minor silver ore
Associated Mineralssmithsonite, native silver, cerussite, anglesite
Rarityuncommon
Description
Bromargyrite typically forms small, often cubic or granular crystals, which can range in color from yellowish-green to greenish-grey, sometimes appearing colorless or brown.
Geological Context
This mineral forms in the oxidized zone of silver-bearing ore deposits, particularly in arid or semi-arid climates where bromide-rich solutions are present.
