Volkovskite & Hilgardite

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Boulby Mine, Loftus, North Yorkshire, England
2741
Blades of mica like volkovskite crystals topped with hilgardite making for a rich and unusual specimen from the find of exceptional volkovskite 9 or 10 years ago at Boulby mine in Yorkshire. Ex. M. Freier collection
Formula: Volkovskite KCa4[B5O8OH]4[B(OH)3]2Cl . 4H2O; Hilgardite Ca2B5O9Cl . H2O
£30.00
Status: Sold
Dimensions: 40x35x20mm
Size: Miniature (M)
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