Bronzite

Big Photo

India
12.35 carats

Bronzite is an iron-bearing variety of Enstatite from Austria. It has green-brown colour with bronze-like sub-metallic lustre. It was known long before Enstatite.

Bronzite Gemstones by Colour

This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
 
General Information
A variety or type of:Enstatite
Chemical Formula
(Mg,Fe)
 
2
Si
 
2
O
 
6
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Photos of natural/un-cut material from mindat.org
Physical Properties of Bronzite
Mohs Hardness5.5
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Specific Gravity3.35 +/-
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Cleavage QualityDistinct
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
More from other references
Optical Properties of Bronzite
Refractive Index1.668 +/-
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Optical CharacterBiaxial
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Birefringence0.014 +/-
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Colour
Colour (General)(Greenish)-brown
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
TransparencyTransparent,Translucent,Opaque
Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
LustreSubmetallic
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) Bronze-like
Crystallography of Bronzite
Crystal SystemOrthorhombic
Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
More from other references
Inclusions in Bronzite
Fibrous inclusions - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 4
Further Information
Mineral information:Bronzite information at mindat.org
Copyright © Jolyon & Katya Ralph 1993-2019. Site Map. Locality, gem & photograph data are the copyright of the individuals who submitted them. For more information please contact the . Gemdat.org is an online information resource dedicated to providing free gemmological information to all.