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Albite (Var: Cleavelandite) : Na[AlSi3O8], Quartz : SiO2 | |
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Malkhan pegmatite field (Malchan), Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Light blue color cleavelandite, with smoky quartz crystals - this specimen show us typical example of pegmatite, where tourmaline crystals nested on Malkhan tourmaline locality, Russia, Chitinskaya oblast Size 185 x 150 x 75 mm |
| © Oleg Lopatkin | Photo ID: 237690 View Count: 41 |
Apatite | |
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Baikal area, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia The size of the specimen is cm 11x12, and the biggest crystal is long cm 5,5. Photo FRANCO LAZZARI. |
| © FRANCO LAZZARI | Photo ID: 87341 View Count: 161 |
Apatite | |
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Oktyabrskaya Pegmatite Vein, Malkhan pegmatite field (Malchan), Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia A 2 х 1.8 cm crystal of blue-green apatite with tourmaline on cleavelandite. |
| © INS | Photo ID: 171730 View Count: 94 |
Arsenic : As, Calcite : CaCO3, Orpiment : As2S3 | |
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Krasnochikoyskoe deposit, Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Black spheroids of native Arsenic within calcite vein crosscuting altered basic rock. Minor films of orange-yellow powdery Orpiment is visible. Orpiment here is result of interaction of native arsenic with sulphat waters produced by oxidation of pyrite from host basaltic rock. Specimen size is 10x6 cm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 240909 View Count: 35 |
Arsenic : As, Calcite : CaCO3 | |
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Krasnochikoyskoe deposit, Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Polished surface of native Arsenic spheroids within calcite vein crosscuting altered basic rock with minor pyrite in it. Note concentric features appeared within arsenic spheroids due to ~15 year air autoetching. Specimen size is 11x9x5.5 cm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 240906 View Count: 32 |
Arsenic : As, Calcite : CaCO3, Orpiment : As2S3 | |
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Krasnochikoyskoe deposit, Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Black spheroids with bothrioidal surfaces of native Arsenic within calcite vein crosscuting altered basic rock. Minor films of orange-yellow powdery Orpiment is visible. Orpiment here is result of interaction of native arsenic with sulphat waters produced by oxidation of pyrite from host basaltic rock. Specimen size is 9x8.5 cm. Pavel M. Kartashov ... |
| © Pavel M. Kartashov | Photo ID: 240908 View Count: 26 |
Astrophyllite : (K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7, Albite : Na[AlSi3O8], Aegirine : NaFe3+[Si2O6] | |
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Burpala alkaline Massif, Maigunda River, Mama River Basin, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Small laths of metallic-bronze astrophyllite in albitized nephelin-syenite pegmatite matrix. This astrophyllite is enriched with Mn and Cs and is tranzitive to kupletskite-(Cs). Associated minerals are green aegirine prismes, beige zeolites secondary after nepheline grains and minor brownish cubes of altered loparite-(Ce). Specimen size is ... |
| © Pavel M. Kartashov | Photo ID: 152471 View Count: 103 |
Axinite : (Ca,Mn)2(Fe,Mn,Mg)Al2BSi4O15OH | |
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Sosedka pegmatite vein, Malkhan pegmatite field (Malchan), Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Crystals of up to 0.4 х 0.2 х 0.9 cm axinite on adularia. |
| © INS | Photo ID: 171734 View Count: 68 |
Axinite : (Ca,Mn)2(Fe,Mn,Mg)Al2BSi4O15OH | |
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Sosedka pegmatite vein, Malkhan pegmatite field (Malchan), Krasnyi Chikoy, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia Crystals of up to 0.4 х 0.2 х 0.9 cm axinite on adularia. |
| © INS | Photo ID: 171733 View Count: 57 |
Babefphite : BaBe[(F,OH)|PO4] | |
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Aunik F-Be deposit, Vitim Plateau, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia dimension area mm. 2 x 2 Very tiny inclusions of babefphite in apatite photo and collection Luigi Chiappino |
| © luigi chiappino | Photo ID: 222799 View Count: 84 |
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