Heulandite & Stilbite
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Heulandite & Stilbite
Sgurr nam Boc, Minginish, Isle of Skye, Scotland
916
Collected in 1995, this fine Isle of Skye specimen has pearly heulandite crystals to 10mm with orange-pink cores on which a number of sharp snow-white stilbite crystals have formed.
Formula: Heulandite (Sr,Na,Ca) 2-3 Al3(Al,Si) 2Si13O36 . 12H2O ;
Stilbite (Ca0.5,K,Na)9(Al9Si27)O72 . 28H2O
Status: Sold
Dimensions: 59x32x20mm
Size: Miniature (M)
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