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Description: | mineral hand specimen, 14 x 17 cm. Barytocalcite crystals up to 1.5 cm. Coated with secondary baryte, on limestone matrix. Collected from Nentsberry Haggs Mine, Nenthead, Cumbria (NE England). Collected by Lindsay Greenbank, 1970 (c).
Although Barytocalcite is a rare mineral, a vein which measures up to 2.4 metres wide in places, and said to consist mainly of this mineral, occurs at Blagill, near Alston, Cumbria, the only place on the planet where barytocalcite has been mined commercially (as a source of barium). Barytocalcite resembles witherite, but may be distinguished from this mineral by the shape of its crystals.
The specimen was found in NE England. | Publisher: | Tyne & Wear Archives & Museums | Subjects: | Greenbank Lindsay Classification: Barytocalcite | Temporal: | Permian period (290 - 248 million years ago) | Source: | Tyne & Wear Archives & Museums | Identifier: | http://www.twmuseums.org.uk/geofinder/se... | Go to resource |
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