$685Median
2346Sold (12 mo)
$125Last sale
Fluorite
4
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Twinned fluorite crystal group, 17 cm, from the Boltsburn mine, Weardale, County Durham, England. The mine closed in 1931. Ex Harvard Mineralogical Museum collection, ex Serafino G. Avella (1928–2013) collection. Photograph by Jeffrey A. Scovil.
Product details
SpeciesFluorite
SizeLarge Cabinet
Dimensions17.0 cm
Added on02/13/2026
LocalityUK, England, Boltsburn Mine
Publications
- Mineralogical Record Mineral Collections In American Northeast page 40
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | Serafino G. Avella (1928–2013) | Not disclosed |
| — | Harvard Mineralogical and Geological Museum | Not disclosed |
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Mineral guide
Learn about Fluorite
calcium fluoride with a dazzling color range, cubic and octahedral crystals, and UV fluorescence; prized by collectors for Blue John banding.
Regional guide
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