Barite pseudomorph after Alstonite

Nentsberry Haggs Mine, Nenthead, Cumbria, England

Reference: 2395

A fine specimen from the find some years ago of Alstonite crystals replaced by Barite. The matt white barite has faithfully retained the original pseudo-hexagonal habit of the alstonite in crystals up to 7mm. Associated with the alstonite pseudomorphs are sparkling sphalerite and quartz crystals. Ex. Chris Jewson collection

Formulas: Alstonite BaCa(CO₃)₂; Barite BaSO₄

Status: Sold

Dimensions: 47x30x15mm

Size: Miniature (M)