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Date: |
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Description: | mineral hand specimen, 15 x 11 cm. An aggregate group of witherite crystals with coating of secondary baryte. Collected from Nentsberry Haggs Mine, Nenthead, Cumbria (NW England). Collected by Lindsay Greenbank, 1970 (c).
Witherite is unusually common in parts of the North Pennine orefield, but is rare elsewhere. Fine specimens of white and pale yellow six-sided crystals from the Alston area are highly prized. These hexagonal-shaped crystals from Haggs Mine, Nentsberry, are typical of witherite from the area. Witherite is an ore of barium (like baryte, another barium mineral, it is heavy), small quantities are used in the pottery industry.
The specimen was found in NW England. | Publisher: | Tyne & Wear Archives & Museums | Subjects: | Greenbank Lindsay Classification: Witherite | 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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