Formula: (Mn,Ca)₃Si₃O₉
Mineral class: silicates
Crystal system: triclinic
Mohs scale: 5.5 - 6
Density (g/cm³): 3.32 - 3.38
Refractive index: 1.662 - 1.707
Cleavage: different
Colors: orange, rose, brown-red
Luster: vitreous
Fluorescence: LW: red
Pleochroism: -
Largest Bustamite: 2.5 cm?
Deposits: worldwide
1st Description: 1922
Name: in honor of the Mexican general Anastasio Bustamente (1780-1853)

Bustamite Mineral

Origin: Broken Hill / New South Wales / Australia

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Bustamite Mineral

Size: 4.08 x 2.05 x 1.72 cm

Origin: South Africa

Photo by kind permission of © Darlene Cobler

Bustamite

Weight: 1.0 ct

Origin: Broken Hill / New South Wales / Australia

Photo by kind permission of © rocklogic.biz

Bustamite

Weight: 2.63 ct

Origin: South Africa

Photo by kind permission of © www.steveperrygems.com

Bustamite

Weight: 1.76 ct
Diameter: 0.7 cm
Origin: South Africa

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Bustamite

Weight: 2.35 ct

Origin: South Africa

Photo by kind permission of © rocklogic.biz

Bustamite

Weight: 1.56 ct

Origin: N'Chwaning II Mine / Hotazel / Northern Cape Prov. / South Africa

Photo by kind permission of © www.steveperrygems.com