AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Afghanistan > Sodalite var. Hackmanite (tenebrescent)

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

   

Sodalite var. Hackmanite (tenebrescent) from Sar-e-Sang, Kokscha Valley, Badakshan, Afghanistan

 
Sodalite var. Hackmanite (tenebrescent) from Sar-e-Sang, Kokscha Valley, Badakshan, Afghanistan

Sodalite var. Hackmanite (tenebrescent) from Sar-e-Sang, Kokscha Valley, Badakshan, Afghanistan

Photo below under shortwave ultraviolet illumination:
Sodalite var. Hackmanite (tenebrescent) from Sar-e-Sang, Kokscha Valley, Badakshan, Afghanistan

DESCRIPTION:No. 43988
Mineral:Sodalite var. Hackmanite (tenebrescent)
Locality:Sar-e-Sang, Kokscha Valley, Badakshan, Afghanistan
Description:Several lilac-colored crystals of sodalite, variety hackmanite, frozen in yellow-white marble matrix. The hackmanite fades to pale purple in white light, and turns deeper purple when exposed to UV light (this reaction is known as tenebrescence).
Overall Size:3.5x3x2.5 cm
Crystals:4-15 mm
Archived: For reference only

 

 

 

 

 

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