Volkovskite
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Boulby Mine, Loftus, North Yorkshire, England
1760
Small aggregated crystals on a mica like volkovskite blade, a rich and unusual specimen from the find of exceptional volkovskite specimens 7 or 8 years ago at Boulby mine in Yorkshire
Formula: KCa4[B5O8OH]4[B(OH)3]2Cl . 4H2O
Status: Sold
Dimensions: 40x30x14mm
Size: Miniature (M)
Minerals of the English Midlands
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