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 Romanite : ([],Pb,Ca)UFe2+2(Ti,Fe3+)6Ti12O38, Rutile : TiO2 |
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Dzhigda U ore occurrence, Dambuki ore cluster, Amurskaya Oblast', Far-Eastern Region, Russia
Lustrous sections of tabular crystals of black romanite in greenish amphibolite matrix. Associating mineral is redish-brown granular secondary rutile, replacing romanite grains. It is more visible on cut back side of the specimen. Its size is 7x7x3 cm and radioactivity 2625 μR/h. Collected by L.I. Larichev in 1980. Pavel M. Kartashov collection ... |
| © Pavel M. Kartashov | Photo ID: 154095 View Count: 134 |
Romanite : ([],Pb,Ca)UFe2+2(Ti,Fe3+)6Ti12O38 |
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Dzhigda U ore occurrence, Dambuki ore cluster, Amurskaya Oblast', Far-Eastern Region, Russia
Massive coarse-grained agregate of romanite from amphibolites. Specimen size is 3x2x1.8 cm and its radioactivity is 335 μR/h. Collected by L.I. Larichev in 1980. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 116694 View Count: 117 |
Romanite : ([],Pb,Ca)UFe2+2(Ti,Fe3+)6Ti12O38 |
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Strelka U ore occurrence, Dambuki ore cluster, Amurskaya Oblast', Far-Eastern Region, Russia
Lustrous black rounded grains of romanite in border zone of granitic pegmatite crosscut amphibolite rocks. Brownish small grains of Al-bearing titanite is visible. FOV is ~12x10 mm. Collected by L.I. Larichev in 1980. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 117297 View Count: 312 |
Romanite : ([],Pb,Ca)UFe2+2(Ti,Fe3+)6Ti12O38 |
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Strelka U ore occurrence, Dambuki ore cluster, Amurskaya Oblast', Far-Eastern Region, Russia
Lustrous black rounded grains of romanite in border zone of granitic pegmatite crosscut amphibolite rocks. Brown titanite grains are visible in felspar part of the specimen. Specimen size is 4x3.5x2 cm. Collected by L.I. Larichev in 1980. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 116695 View Count: 130 |
