Johachidolite

Johachidoliet, Johachidolita, Johachidolith, Йохачидолит, 新的宝石品种硼铝钙石, ジョウハチドーライト


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


Formula: CaAlB3O7
Mineral class: borates
Crystal system: orthorhombic
Mohs scale: 7.5
Density (g/cm3): 3.37 - 3.45
Refractive index: 1.712 - 1.726
Cleavage: restricted
Colors: colorless, yellow, orange, brown
Transparency: transparent - translucent
Luster: vitreous
Fluorescence: SW UV: blue
Pleochroism: -
Largest Johachidolite: ?
Deposits: Pyan Gyi Mine / Pyan Pyit / Mogok / Myanmar, Sangpal-tong / North Corea
Discovery: 1942
1st Description: 1951
Name: ref. to the first deposit in the Johachido (name from the Japanese colonial-era) district in North Corea
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Pyan Gyi Mine / Pyan Pyit / Mogok / Myanmar

Größere Kartenansicht

Johachidolite

Weight: 1.02 ct

Origin: Pyan Gyi Mine / Pyan Pyit / Mogok / Myanmar

Photo by kind permission of © www.gemfrance.com
Johachidolite SW UV Light

Size: 0.21 x 0.17 cm
Weight: 0.02 ct
Origin: Mogok / Myanmar

Photo by kind permission of © www.thegemtrader.com
Johachidolite

Johachidolite

Size: 0.64 x 0.61 x 0.38 cm
Weight: 0.94 ct
Origin: Myanmar

Photo by kind permission of © www.palagems.com

Johachidolite Mineral

Size: 3.4 x 2.5 x 4.1 cm

Origin: Pyan Pyit / Mogok / Myanmar

Photo by kind permission of © www.fabreminerals.com
Johachidolite Mineral
Johachidolite

Weight: 0.08 ct

Origin: Pyan Pyit / Mogok / Myanmar

Photo by kind permission of © www.gemfrance.com

Johachidolite Mineral in violet Hackmanite

Origin: Pyan Gyi Mine / Pyan Pyit / Mogok / Myanmar

Photo by kind permission of © www.mineralman.com
Johachidolite Mineral
Johachidolite

Weight: 1.15 ct

Origin: Mogok / Myanmar

Photo by kind permission of © www.americanthai.com
Johachidolite Mineral

Size: 3.5 x 3.0 x 1.6 cm

Origin: Pyan Pyit / Mogok / Myanmar

Photo by kind permission of © www.irocks.com
Johachidolite Mineral
Johachidolite

Weight: 0.2 ct

Origin: Pyan Gyi Mine / Pyan Pyit / Mogok / Myanmar

Photo by kind permission of © www.crystal-treasure.com

Johachidolite bicolor

Weight: 0.52 ct

Origin: Mogok / Myanmar

Photo by kind permission of © www.americanthai.com


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