Strontian mine, Strontian, Ardnamurchan, Scotland
Fine display specimen of well formed chocolate-brown modified pseudo-cubic calcite crystals to 30mm, with an aesthetic dusting of small but lustrous harmotome crystals over part of the specimen. Collected in the 1990's. Sawn back.
Formula: Calcite: CaCO3 ; Harmotome: (Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] .12H2O
Size: Large Cabinet (L)
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