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Click Here for Larger Ekatite Image in a New Browser Window Images: ... Comments: Divergent spray of dark brown acicular ekatite crystals. ...
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Ekatite is brownish black, translucent with a brown streak and vitreous lustre. It is brittle without cleavage and its Mohs' hardness is 3. The mineral is non-fluorescent, optically uniaxial positive with indices of refraction 1.99 and 2.08, pleochroic with = dark brownish black and = medium brown.
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Ekatite - Wikipedia
La ekatite è un minerale. Webmin Ossidi e idrossidi
it.wikipedia.org/wiki/Ekatite |
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Ekatite Henrymeyerite Johntomaite Juanitaite ... KELLER, P. (2001): Ekatite, (Fe3+,Fe2+,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2, a new mineral ...
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phosphoellenbergerite, ekatite, and a series of structurally related synthetic compounds. The structure of phos- phorus-rich ellenbergerite differs from the ...
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ellenbergerite, phosphoellenbergerite, and ekatite). Such channels impart a microporous ..... mortierite to holtite I, holtite II, and ekatite is clearly ...
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The new mineral name is for the locality. Type material is in the Systematic Reference Series of the National Mineral Collection at the Geological Survey ... J.L.J. Ekatite* P. Keller (2001) Ekatite, (Fe 3+ ,Fe 2+,Zn) 12 (OH) 6 [AsO 3 ] 6 [AsO3,HOSiO3]2, a new mineral from Tsumeb, Namibia, and its crystal structure. Eur.
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20 matching records for this search. ... European Journal of Mineralogy 12 (2000) 847-857 ... First experimental evidence of alluaudite-like phosphates with high...
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... framework observed in the structures of ellenbergerite, phosphoellenbergerite, ekatite, and a series of structurally related synthetic compounds. ...
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