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Laurionite from
Wheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Laurionite | |
| Formula: | PbCl(OH) | |
| Comments: | Russell and Hutchinson (1927): "The crystals of laurionite are colourless and translucent and bladed in form, attaining a length of 4 mm.[...] The following forms are present: b(010), m(110), n(120), d(012), and the prominent but somewhat doubtful form p(141). [...] The faces as a whole appeared to be etched and afford multiple images, with the exception of m(110) which gives good reflections. As in the case of the Laurion crystals the faces of b(010) are striated parallel to their intersection with the pyramid p(141), the latter being possibly a vicinal form as suggested by Dr. Herbert Smith. The edges formed by the intersection of the faces p(141) are always more or less curved, thus giving rise to the bladed form. No interference-figure can be seen looking through (010). The crystals when powdered are partially soluble in boiling water. The presence of lead and chlorine was determined. Of the three associated minerals, laurionite, phosgenite, and anglesite, the laurionite appears to have been the last formed, and partially invests the other two." | |
| Habit: | bladed. | |
| Colour: | colourless | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Data | ||
| Mineral Data: | Click here to view Laurionite data | |
| Locality Data: | Click here to view Wheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 6827 | |
| Long-form Identifier: | 1:3:6827:7 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Laurionite | ||
| 11.4km (7.1 miles) | ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK | |
| 22.3km (13.8 miles) | ⓘPenpol smelter slag locality, Penpol, Feock, Cornwall, England, UK | |
| 39.5km (24.6 miles) | ⓘThe Gannel Smelter slag locality, Crantock, Cornwall, England, UK | |
| References | ||
