Barite pseudomorph after Alstonite

Barite pseudomorph after Alstonite

2nd Sun Vein, Nentsberry Haggs Mine, Nenthead, Cumbria, England


This is a particularly fine specimen from the find some years ago of alstonite replaced by barite.  Where they can be seen the crystals centres show a little remnant alstonite and the barite has faithfully retained the original hexagonal habit.

Formulas: Alstonite BaCa(CO3)2 ; Barite BaSO4

Status: Sold

Dimensions: 47x42x35mm

Size: Miniature (M)

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