Wooldridgeite from
Roughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
| Locality type: | Mine | ||||||||||||||||||||||||||||||||||||
| Classification | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Species: | Wooldridgeite | ||||||||||||||||||||||||||||||||||||
| Formula: | Na2CaCu22+(P2O7)2 · 10H2O | ||||||||||||||||||||||||||||||||||||
| Comments: | Cooper & Stanley (1990): "Sprays of tapering bladed aquamarine blue transparent crystals to 1.5mm on chrysocolla in quartz have been shown by XRD (BM(NH) & Leeds Univ.) and semi-quantitative EPMA (M. Rothwell, pers. comm.) to be a probable new species. Only two very small specimens have been found (J. Dickinson & P. Braithwaite Collections). The XRD pattern is closely related to that of the magnesium phosphate bobierrite (D.I. Green, pers. comm.)." Bridges et al. (2011): "A copper calcium sodium pyro-phosphate hydrate occurring as ‘sprays of tapering bladed aquamarine crystals’ was described as an unknown species from the dumps of Roughton Gill Mine by Cooper and Stanley (1990, pp. 132-133). [...] Wooldridgeite was identified on a few small specimens collected by the late Peter Braithwaite and the late John Dickinson on the 90-fathom level dumps at Roughton Gill Mine. It occurs as pale ice-blue tapering prismatic crystals, which exceptionally reach 1.8 mm in length, but are usually much smaller than this. The crystals are commonly associated with ‘chrysocolla’ in porous quartz. They are very late in the paragenetic sequence. A few overgrow recent fractures in the quartz matrix which indicate a post-mining origin. It has not been found in this study." | ||||||||||||||||||||||||||||||||||||
| Habit: | tapering blades/prisms | ||||||||||||||||||||||||||||||||||||
| Colour: | aquamarine blue | ||||||||||||||||||||||||||||||||||||
| Confirmation | |||||||||||||||||||||||||||||||||||||
| Validity: | Confirmed | ||||||||||||||||||||||||||||||||||||
| Confirmation Methods: | XRD EPMA | ||||||||||||||||||||||||||||||||||||
| Data | |||||||||||||||||||||||||||||||||||||
| Mineral Data: | Click here to view Wooldridgeite data | ||||||||||||||||||||||||||||||||||||
| Locality Data: | Click here to view Roughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | ||||||||||||||||||||||||||||||||||||
| Data Identifiers | |||||||||||||||||||||||||||||||||||||
| Mindat Occurrence Record ID: | 961166 | ||||||||||||||||||||||||||||||||||||
| Long-form Identifier: | 1:3:961166:5 | ||||||||||||||||||||||||||||||||||||
| GUID (UUID V4): | 53deebb8-8e1e-4648-915e-cd4dd37c6f25 | ||||||||||||||||||||||||||||||||||||
| References | |||||||||||||||||||||||||||||||||||||
| Reference Search (possible matching items) | |||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||
