| | Description | |
| Comments: | Cotunnite is a constituent of a small number of the light blue alteration haloes found around (darker blue) diaboleite crystals in mendipite. It does not appear in all haloes or alternatively is very sparsely dispersed as discrete 'grains' in a large amount of other material. | | Habit: | massive | | Colour: | in a mixture, but probably very pale blue or white | | UV Fluorescence: | n/a | | Quality of samples: | not specified / average specimens | | Rarity at site: | Very Rare | | Confirmation | |
| Validity: | Confirmed | | Confirmation Methods: | XRD
SEM-EDS
| | References | |
| References: | Turner R.W. and Rumsey, M.S. (2007) Merehead Mineralogy - an Update. Russell Soc Newsletter, No 50, pp 17-18 (March 2007); Turner, R.W., (2006) A Mechanism for the formation of the Mineralised Mn Deposits at Merehead Quarry, Cranmore, Somerset, England. Min. Mag. vol. 70, no. 6, pp 629 - 653 | | Data | |
| Mineral Data: | Click here to view Cotunnite data | | Locality Data: | Click here to view Torr Works Quarry (Merehead Quarry), Cranmore, Somerset, England, UK |
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