INVESTIGATION OF THE SHEEP CREEK CARBONATITES, RAVALLI COUNTY, MONTANA [PDF]
Carbonatite-related REE-Nb mineralization in southern Ravalli County, Montana was first discovered in the late 1950s and early 1960s. Over 30 discontinuous carbonatite bodies occur in a ~ 10 km2 area centered on Sheep Creek, a tributary to the ...
Risedorf, Sarah
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CANCRINITE-GROUP MINERALS AT NON-AMBIENT CONDITIONS: A MODEL OF THE ELASTIC BEHAVIOR AND STRUCTURE EVOLUTION [PDF]
The minerals of the cancrinite group are zeolite-like compounds, sharing the [CAN]-topology of the framework. Their structure shows large 12-ring channels along [0001], bound by columns of cages, the so-called can units.
P. Lotti
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TITANITE OF THE VISHNEVOGORSKY ALKALINE COMPLEX (South Ural) [PDF]
Titanite CaTi(SiO4 )O is a common accessory mineral of alkaline rocks and pegmatites of the Vishnevogorsky alkaline complex, South Urals. It occurs in many magmatic assemblages, is found in some metasomatites, underwent deformation and recrystallization.
V.A. Popov
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ALLANITE-(Nd) FROM SAPFIRINOVAYA PIT, SOUTHERN URALS: FIRST FIND IN RUSSIA [PDF]
Allanite-(Nd) (Ca1.20Mn0.02Nd0.33Ce0.21Sm0.07Pr0.06La0.03Gd0.02Y0.01)Σ1.95(Al1.94Fe2+ 0.46Fe3+ 0.42Mg0.08Sc0 .06Ti0.01)Σ2.97[Si2 O7 ][SiO4 ]O(OH) was found first in Russia as black crystals and grains up to 0.12 mm in size in a sapphirine-bearing rock of
A.M. Kuznetsov, A.V. Kasatkin, R. Škoda
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AMPHIBOLES OF ALKALINE ROCKS OF THE ILMENOGORSKY COMPLEX AND COUNTRY METAMORPHIC ROCKS, SOUTH URALS [PDF]
Amphiboles of the Ilmenogorsky miaskite complex and metamorphic rocks of its top are studied along the section of structural borehole C-2000, which drilled 400 m of fenitized rocks of the top and 1600 m of internal parts of the complex.
E.P. Makagonov +2 more
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The sealing step in aluminum anodizing: a focus on sustainable strategies for enhancing both energy efficiency and corrosion resistance [PDF]
Increasing demands for environmental accountability and energy efficiency in industrial practice necessitates significant modification(s) of existing technologies and development of new ones to meet the stringent sustainability demands of the future ...
Fernandes, Fábio A. O. +2 more
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NEW SPECIMEN OF THE NATURAL SCIENTIFIC MUSEUM OF THE ILMENY STATE RESERVE [PDF]
The most interesting new specimen of the museum of the Ilmeny State Reserve presented for last 5 years are described: a collection of samples from the oxidation zone of the Rubtsovka Cu-Zn-Pb deposit, new minerals discovered in the Urals, a collection of
M.A. Rassomakhin
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Hydrothermal alteration of a chevkinite-group mineral to a bastnäsite-(Ce)-ilmenite- columbite-(Fe) assemblage:interaction with a F-, CO2-rich fluid [PDF]
The results are presented of a textural and mineral chemical study of a previously undescribed type of hydrothermal alteration of chevkinite-(Ce) which occurs in a syenitic pegmatite from the Vishnevye Mountains, Urals Region, Russia.
Bagiński, Bogusław +5 more
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CARBONATES FROM THE VISHNEVOGORSKOE ZR-NB DEPOSIT (SOUTHERN URALS) [PDF]
Data on carbonates in alkaline rocks, pegmatites, and late veinlets of the Vishnevogorskoe deposit are summarized. Among 21 minerals studied, calcite is the major mineral; dolomite, ankerite, siderite, aragonite, bastnasite-(Ce), and strontianite are ...
E.I. Churin +5 more
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Mineralogical and ion-exchange leaching study of a Rare Earth Element (REE) bearing ion-adsorption clay deposit [PDF]
Rare earth elements (REEs), La to Lu including Y, are vital elements in manufacture of catalysts and metallurgical industries, and play a critical role in meeting future energy demands, such as through their use in permanent magnets in wind turbines ...
Burcher-Jones, Cody Owen
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