Bustamite

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Physical & Optical Properties

Mohs Hardness 5.5 – 6.0
Specific Gravity 3.32 – 3.43
Refractive Index 1.662 – 1.707
Crystal System Triclinic
Luster Vitreous
Cleavage Perfect
Fracture Conchoidal
Color various
Birefringence 0.014

Mohs Hardness

Mohs Hardness: 5.5 – 6.0
1 Soft10 Hard

Crystal System

a b c Triclinic a ≠ b ≠ c, α ≠ β ≠ γ ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

About Bustamite

Bustamite is a calcium manganese silicate mineral forming pale pink to rose-red massive or granular aggregates, often found alongside rhodonite in manganese-rich metamorphic and hydrothermal deposits. It was named after Mexican mineralogist Anastasio Bustamante, and significant occurrences are found in South Africa, Sweden, and New Jersey. Polished bustamite can display a soft, satiny luster and attractive pink color, though it is rarely used in mainstream jewelry.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Bustamite?
Bustamite is a calcium manganese silicate mineral forming pale pink to rose-red massive or granular aggregates, often found alongside rhodonite in manganese-rich metamorphic and hydrothermal deposits. It was named after Mexican mineralogist Anastasio Bustamante, and significant occurrences are found
What is the hardness of Bustamite?
Bustamite has a Mohs hardness of 5.5 to 6.0, making it moderate for use in jewelry.
What color is Bustamite?
Bustamite is primarily Various.
How much does Bustamite cost?
Bustamite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Bustamite?
Bustamite belongs to the Triclinic crystal system.

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