 | | Book | | shield, Siberia, Russia Kazakhstan Pskem River, Uzbekistan Russia Trudolyubovka Village, Crimea Subpolar...Rangkul' pegmatite field Rangkul' Khibiny Karaminskii Range Central Patok Tsentral'noye Patok Subpolar Urals...Urals (East slope), Russia Alaiskii Range, Tadzhikistan Alaiskii Range, Tadzhikistan Aldan shield, Siberia...Kola Peninsula Kola Peninsula, Russia Kuraminskii Range, Uzbekistan Lovozero, Kola Peninsula Lovozero, Kola...Azov area (near Nikitovka) South Crimea Tarbagati Range, East Kazakhstan Ukraine Kola Peninsula Kola Peninsula |  | | Journal (article/letter/editorial) | | personal observations of the magmatic formations of Uzbekistan and some other regions of the USSR (Kirgizia...with the Institute. of Geology and Geophysics, Tashkent. formations that contain iron-ore mineralization...mineralization here refers to high-temperature quartz-cassiterite-wolframite, sulfide -cassiterite and...rare-metal-pegmatite, skarn-scheelite-molybdenite and quartz-molybdenite formatiOns. Iron-ore and titanium mineralizations...understood to mean skarn-magnetite (and hematite), quartz-hematite and titanium-magnetite-41menite formations |  | | Journal (issue) | | "standard" minerals. Widespread minerals, such as quartz, calcite, gypsum, and fluorite, are represented...campylite from Cumberland (England). In addition to quartz and calcite collections of mineral species which...Leybov. The intergrowth of topaz crystals with smoky quartz and albite. Adun Chalon, East Transbaikalia. 5...5,5x 3cm. VSGM, Nc55190 Photo: M. Leybov. Quartz with boulangerite inclusions. Nagornyi Kryazh, Donbass...donated by N.I. Frishman (borates from Inder, iron quartz and goethite from Mangyshlak, pyrite concretions |  | | Book | | only in minera logical museums. Crystal sizes range from a nanometre to ten metric scales. Man-sized...rare and have been observed in mi nerals such as quartz, calcite, gypsum, beryl, apatite, tourmaline, feld...exhibits are quartz varieties of different colours such as rock crystal ( 1 270 kg); quartz with tourmaline...crystal fragments; citrine (3 1 8 kg); and rose quartz (260 kg). The "Giant Crys tals" collection also...ration; vicinal surfaces up to 30 cm in size on quartz rhombohedron faces (sample 023); twisted aod asy |  | | Journal (article/letter/editorial) | | Be^A1^Si.O- ^ Kao (oH) A12S1205 4 si02 Kao 1 init quartz e Qtz J 2 4.657+.010 2 9.217+.050(?) 20,355+...naturalberyl breaks down to chrysoberyl,phenakite,and quartz at apHzo proximately15.5kbar and l340oCand to chrysobeFig...relatedbinarysystemBeO_SiO, Al2Os,beryl * phenakite t quartz* Cr2O3.Frondel by Morgan and Hummel (1949)revealedphenakiti...,Newkirk (1964) beryl (bassite),with phenakite,quartz, and hematite. dehydratedbehoiteto bromelliteat...phenakitebetween 500 and 600"C. They alteredberyl to quartz,to ber300 and 500oC,720 atm, but bertranditeappeared |  | | Journal (issue) | | 1973. 28 х 18 ст. Turquoise,diamond, реаг/, smoky quartz, rosequartz, morion, тагЫе опух, purpurin, ruby...descriptive and genetic mineralogy, the entire range ofmalachite forms may Ье subdivided into two basic...herderite also Hambergite (сотр/ех twin). Turakuloma Range, East Pamirs, Tadzhikistan. 5 х 4 ст. Photo: М....superimposed оп dolomites or magnesian skarns; quartz or rhodoпite bodies, апd others) ■ - hypergene...deposite) (va\leys of the Kameпka and Sanarka Rivers). Quartz veins and placers developed after them: euclase |  | | Journal (article/letter/editorial) | | The years 1955 to 1957 saw a particularly wide range of work on the geochemistry of thallium in the USSR...three from the Yenisey ridge, one from the Altai Range, four from Norway and the rest from Khibin and Lovozer...columbite, tantalite, cassiterite, uraninite and quartz, thallium is very rarely detected and then only...of the metallic ions occurring in these minerals range in size from 0. 83 A for Fe+ 2 to 1.53 A for silver...polymetal deposits with tin (Ak-Tyuz, Buurdu, Kurgan, Sargardon, Ken-Shanyk, Chat-Karagay) quite often contains |
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