| Locality type: | Quarry |
| Classification |
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| Species: | 'Tombarthite-(Y)' (not an IMA approved species) |
| Formula: | Y4(Si,H4)4O12-x(OH)4+2x |
| Comments: | As microscopic inclusions to 2mm in britholite-(Y). Secondary, formed by alteration along fractures. Discredited by IMA 2016. CNMNC Newsletter No. 34: all samples proved to be of heterogeneous nature. |
| Colour: | black |
| Confirmation |
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|
| Validity: | Erroneously Reported |
| Data |
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| Mineral Data: | Click here to view Tombarthite-(Y) data |
| Locality Data: | Click here to view Reiersdal Feldspar Quarries, Øvrebø, Vennesla, Agder, Norway |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 241529 |
| Long-form Identifier: | 1:3:241529:1 |
| GUID (UUID V4): | 5f038cde-dca2-450b-af24-b5002aa11cf2 |
| Nearest other occurrences of Tombarthite-(Y) |
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| 13.1km (8.1 miles) | ⓘIvedal 1 Feldspar Prospect, Ivedal, Iveland, Agder, Norway |
| 26.4km (16.4 miles) | ⓘHøgetveit Feldspar Quarries, Evje og Hornnes, Agder, Norway |
| References |
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