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Allophane - Tavistock, Devon

Allophane - Tavistock, Devon

SKU： TM1605
£80.00価格
New East Wheal Russel, Tavistock,  Devon
 
Rare pale turquoise blue amorphous areas of Allophane over host rock.
Allophane is a hydrous silicate of aluminium.http://www.mindat.org/min-139.html
 
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