Bahianite

Bahianiet, Bahianit, Bahianita, Баиянит, 羥銻鋁礦, バヒアン石


Commonly known      rarer (so called collectors stones)      very rare (rarities)      relatively rare organic material


Formula: Al5Sb3O14(OH)2
Mineral class: oxides and hydroxides
Crystal system: monoclinic
Mohs scale: 9
Density (g/cm3): 4.78 - 5.46
Refractive index: 1.810 - 1.920
Cleavage: perfect
Colors: colorless, cream, orange-brown, brown, light violet
Luster: adamantine
Fluorescence: -
Pleochroism: weak
Largest Bahianite: ?
Deposit: Paramirim das Crioulas / Bahia / Brazil
1st Description: 1978
Name: ref. to the deposit in Bahia / Brazil

Bahianite Mineral

Size: 1.40 x 1.45 x 0.43 cm

Origin: Pico das Almas River / Bahia / Brazil

Photo by kind permission of © www.civilminerals.com
Bahianite Mineral
Bahianite

Weight: 0.31 ct

Origin: Bahia / Brazil

Photo by kind permission of © www.irocks.com

Bahianite Mineral

Size: 1.0 x 0.3 x 0.3 cm

Origin: Bahia / Brazil

Photo by kind permission of © www.kqminerals.com
Bahianite Mineral

Bahianite

Weight: 0.75 ct

Origin: Bahia / Brazil

Photo by kind permission of © www.gemfrance.com

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