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We used ursilite, weeksite, and calcium ursilite to examine the changes in the ... The uranyl silicates of the ursilite-weeksite group are formed in the ...
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The optical properties and chemical composition of ursilite are presented. A calcium ursilite and a magnesium ursilite were identified. ...
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1-3 (calcium ursilite), Mg in No. 4 (magnesium ursilite). The mineral is easily soluble in acids, especially when warm, and yields silica gel. It turns black when heated. The mineral is lemon-yeliow and fluoresces greenish-yellow under ultra-violet light.
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THE AMERICAN MINERAIOGIST, VOL.51 AUGUST' 1966 TABLE 3 These concentrationrangeswere arbitrarily selected' Ag Antimonpearceite Aramayoite Argentojarosite Arsenopolybasite Benjaminite Empressite Fizelyite Jalpaite Marrite Moschellandsbergite Novakite Owyheeite Pavonite Ramdohrite see also Unnamed Minerals 30-32 AI Abukumali...
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notil [1] (UO 2 :SiO 4 = 1); 2) ursilite (UO 2 :SiO 4 < 1); and soddyite (UO2 :SiO > 1).T. *The number of samples of the specified mineral is given in the ...
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minerals (calcite, ursilite, allophane, and rabbitite), the formation of "diluted" uranium minerals (not ura- nophane but ursilJte, not schwartzite but ...
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Ursilite - Wikipedia
La ursilite è un minerale. Webmin Silicati
it.wikipedia.org/wiki/Ursilite |
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Haiweeite, uranosilite and ursilite always form as fine-grained masses, and surface-free energy must contribute to the increased solubilities of these minerals. However, though the structures of these minerals remain unknown, they are not structurally related to uranophane or soddyite.
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The following uranium/thorium mineral names are no longer valid. See the referenced mineral to link to the proper mineral data. ... Calcium-Ursilite ... Ca-Ursilite...
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Alphabetical Mineral Index - C ... Search returned: 3125 items. Only items listed in bold are recognised mineral species. General use of other names should be discouraged. ... Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of...
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