Bronzite

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Physical & Optical Properties

Mohs Hardness 5,5
Specific Gravity 3,35
Refractive Index 1,668
Crystal System Orthorhombic
Cleavage Distinct
Color various
Birefringence 0,014

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Bronzite
Mohs hardness of Bronzite shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Bronzite
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

a b c Orthorhombic a ≠ b ≠ c, α = β = γ = 90°

Value & Market

Price Tier Budget (< $50/ct)

About Bronzite

Bronzite is a brown to dark green variety of enstatite pyroxene with a distinctive sub-metallic, bronze-like schiller caused by oriented iron-rich inclusions that reflect light in a warm, burnished glow. Found in ultrabasic igneous rocks and meteorites, it is used mainly as a decorative and lapidary material in cabochons and beads that display its characteristic metallic sheen. Notable sources include Austria, India, and Norway.

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Frequently Asked Questions

What is Bronzite?
Bronzite is a brown to dark green variety of enstatite pyroxene with a distinctive sub-metallic, bronze-like schiller caused by oriented iron-rich inclusions that reflect light in a warm, burnished glow. Found in ultrabasic igneous rocks and meteorites, it is used mainly as a decorative and lapidary
What is the hardness of Bronzite?
Bronzite has a Mohs hardness of 5.5, making it moderate for use in jewelry.
What color is Bronzite?
Bronzite is primarily Various.
How much does Bronzite cost?
Bronzite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Bronzite?
Bronzite belongs to the Orthorhombic crystal system.

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