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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Contorted crystal of astrophyllite from quartz core of alkaline granite pegmatite. Specimen size is 7x3x2.5 cm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 205859 View Count: 57 |
Bafertisite : Ba(Fe3+,Mn2+)2Ti[O|(O,OH)2|Si2O7], Albite : Na[AlSi3O8], Aegirine : NaFe3+[Si2O6] | |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Section along cleavage of 12 mm long prismatic bafertisite crystal in fenite. Collected by A.V. Stepanov. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 106998 View Count: 166 |
Barylite : BaBe2[Si2O7] | |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Dotted lines of pinkish crystals of barylite in fenitized metasedimentary rock from side to side of the specimen. Associated minerals are white massive albite, black aegirine crystals and very minor brownish leucophanite. FOV is ~5x3 cm. Collected by A.V, Stepanov in early 60th. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 205861 View Count: 89 |
Bastnäsite-(Y) : (Y,Ce)[F|CO3] | |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Picture size: 10x7.5 mm. |
| © Sergey Vasiliev | Photo ID: 71464 View Count: 490 |
Bastnäsite-(Y) : (Y,Ce)[F|CO3], Quartz : SiO2 | |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Pseudomorphose of bastnasite-(Y) after gagarinite-(Y) crystals in quartz core of alkaline granitic pegmatite. FOV is ~12x10 mm. Collected by Leonid A. Pautov. Pavel M. Kartashov collection (#2107) and photo. |
| © Pavel M. Kartashov | Photo ID: 136189 View Count: 201 |
Bastnäsite-(Y) : (Y,Ce)[F|CO3] | |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Pseudomorphose of bastnasite-(Y) after gagarinite-(Y) crystal in quartz core of alkaline granitic pegmatite. FOV is ~12x10 mm. Collected by Leonid A. Pautov. Pavel M. Kartashov collection (#2107) and photo. |
| © Pavel M. Kartashov | Photo ID: 136185 View Count: 195 |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan White coarse-granular cryolite replaced by yellowish tabular agregate of secondary thomsenolite from small cryolite nest within quartz core of the pegmatite of alkaline granites. Such material is very rare on the locality. Associated minerals are minor polylithionite, pyrite, galena, rutile. The back side of the specimen is covered by secondary ... |
| © Pavel M. Kartashov | Photo ID: 152466 View Count: 123 |
Elpidite : Na2ZrSi6O15·3H2O | |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan 5x4x2.5 cm fragment of large crystal of calcian elpidite from pegmatite of agpaitic granites. Such high-temperature elpidites (usually enriched with Ca and K) are formed in superalkaline granitic massifs. Only a few such massifs are known - Khan Bogdo, Khaldzan Buragtag, Strange Lake, Golden Horn - and Verkhnee Espe is the most long known from ... |
| © Pavel M. Kartashov | Photo ID: 206426 View Count: 64 |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Sections of creamy gagarinite-(Y) crystals in grey quartz from alkaline granitic pegmatite. Associating mineral is minor bastnasite-(Y) somewhere replacing gagarinite. This pegmatite is the type locality for both gagarinite-(Y) and Bastnasite-(Y). Unfortunately I saw not more than 5 specimens from here in such quality in my life. Specimen size is ... |
| © Pavel M. Kartashov | Photo ID: 152462 View Count: 158 |
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Verkhnee Espe Massif, Tarbagatai Range, Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast'), Kazakhstan Sections of creamy gagarinite-(Y) crystals in grey quartz from alkaline granitic pegmatite. Associating mineral is minor bastnasite-(Y) somewhere replacing gagarinite. The great present from the author of the mineral. Specimen size is 6x3 cm. Collected by Alexandr V. Stepanov in the begining of 60th. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 152460 View Count: 117 |
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