Lepidolite from
Blue Jacket Tin Mine (Blue Jacket Reef), Glen Valley, East Gippsland Shire, Victoria, Australia
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | 'Lepidolite' (not an IMA approved species) | |
| Comments: | Purple mica with ball-peen habit occurs both on the dumps and in outcrop. Grain size varies from a few mm to ~1.5cm. Maximum birefringence at 30 microns in thin section is second order, fitting with lepidolite and unlike the third order colours of muscovite at the same thickness. Pale green muscovite coexists with the lepidolite in some specimens. XRD analysis to distinguish from muscovite was inconclusive, however the association of habit, colour, and occurrence in a fractionated pegmatite, along with petrographic information indicates that the species is lepidolite. | |
| Colour: | Lavender - purple of various intensity | |
| Quality for species: | Good crystals or rich for species - important (!) | |
| Confirmation | ||
| Validity: | Confirmed | |
| Confirmation Methods: | Polarised-light microscopy | |
| Associated Minerals Based on Photo Data: | ||
| Albite | 1 | |
| Cassiterite | 1 | |
| Quartz | 1 | |
| Data | ||
| Mineral Data: | Click here to view Lepidolite data | |
| Locality Data: | Click here to view Blue Jacket Tin Mine (Blue Jacket Reef), Glen Valley, East Gippsland Shire, Victoria, Australia | |
| Photo Gallery | View Gallery (3 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 639166 | |
| Long-form Identifier: | 1:3:639166:9 | |
| GUID (UUID V4): | 0 | |
| References | ||
Blue Jacket Tin Mine, Glen Valley, East Gippsland Shire, Victoria, Australia