AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Tanzania > Spinel (blue twinned crystals)

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - Fine Minerals.com and Allminerals.com

   

Spinel (blue twinned crystals) from Mahenge, Morogoro Region, Tanzania

 
Spinel (blue twinned crystals) from Mahenge, Morogoro Region, Tanzania

Spinel (blue twinned crystals) from Mahenge, Morogoro Region, Tanzania

Spinel (blue twinned crystals) from Mahenge, Morogoro Region, Tanzania

Spinel (blue twinned crystals) from Mahenge, Morogoro Region, Tanzania

DESCRIPTION:No. 81222
Mineral:Spinel (blue twinned crystals)
Locality:Mahenge, Morogoro Region, Tanzania
Description:Parallel formation of lustrous translucent spinel crystals with unusual blue color. Normally spinel crystals are pink, and occasionally purple, but rarely blue. The spinel crystals are octahedral form, and one pair is twinned following the Spinel Law. Weight: 22.62 carats
Overall Size:18x17x11 mm
Crystals:3-17 mm
Archived: For reference only

 

 

 

 

 

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