astrophyllite


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astrophyllite

[‚as·trə′fī‚līt]
(mineralogy)
(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7 A mineral composed of a basic silicate of potassium or sodium, iron or manganese, and titanium.
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References in periodicals archive ?
The mineral composition of granites is evidently peralkaline from mineralogical point of view, manifested not only by the alkaline composition of their amphiboles and the perthitic one-feldspar character, but by the occurrence of symptomatic alkali granite rare accessory minerals as astrophyllite and plumbomicrolite and by special zircone habit with very short prismatic form as well.
Contribution to petrology and K/Ar amphibole data for plutonic rocks of the Haggier Mts., Socotra Island, Yemen
magnesium astrophyllite = magnesioastrophyllite: there are many minerals with magnesio- as prefix
Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks; Mineral names which do not conform to the current nomenclature guidelines of the Commission on New Minerals, Nomenclature and Classification have to be corrected, and in the future a suffix-based nomenclature is to be used for new mineral names
Natrolite in the cavities is overgrown by calcite, fluorite, barytocalcite, podlesnoite, astrophyllite and, in minor amounts, burbankite, lemmleinite-K and fluorapophyllite.
Podlesnoite Ba[Ca.sub.2](C[O.sub.3])[.sub.2][F.sub.2]: a new mineral species from the Kirovskii mine Khibiny, Kola Peninsula, Russia
There were a lot of fine minerals represented, from astrophyllite to zircon, all self-collected and all in fine condition.
Springfield Show 2004
Associated minerals are: natrolite, aegirine, microcline, catapleiite, fluorapatite, titanite, fluorite, galena, sphalerite, strontianite, annite, astrophyllite, lorenzenite, labuntsovite-Mn, kuzmenkoite-Mn, cerite-(Ce), edingtonite, ilmenite and calcite.
Abstracts of new mineral descriptions
The principal rock of the Warsak igneous complex is a medium-grained, gneissic alkaline granite (Kempe, 1973) composed of microcline with minor albite, quartz, aegirine, riebeckite and astrophyllite.
Zagi Mountain: Northwest Frontier Province Pakistan
Occurrence: At Rasvumchorr, in veinlets cross-cutting natrolite of ristscorrite pegmatite; associated minerals are: microcline, aegirine, annite, astrophyllite, magnetite, fluorapatite, pyrophanite, thomsonite-Ca, etc.
Abstracts of new mineral descriptions
Associated minerals at Nanna are aegirine, astrophyllite, analcime, calcio-ancylite-(Ce), catapleiite, fluorite, galena, gibbsite, leucophanite, microcline, natrolite, nafertisite, orthoclase, polylithionite, sodalite (var.
Abstracts of new mineral descriptions
There were aegirine crystals with oddly clubbed ends; pale pink, blocky ancylite crystals; spiky balls of calcite; very complicated, water-clear crystals of an unknown mineral; tiny, resinous brown crystals of a second mineral showing a hexagonal pyramid termination, and pale brown sprays that were obviously astrophyllite.
Microminerals
Relationship to other species: It is a member of the astrophyllite group, specifically the K-Mn-Nb-dominant member.
ABSTRACTS OF NEW MINERAL DESCRIPTIONS
The syenite pegmatites contain calcium catapleiite, titanium-rich lavenite, lorenzenite, cesium-rich astrophyllite, kupletskite, pyrophanite, leucophanite, strontium-apatite, loparite, calcium-rich seidozerite, strontium-rich and zirconium-rich perrierite, brookite, landauite, murataite, polylithionite, brewsterite, chabazite, monazite, ancylite, bertrandite, vlasovite, hambergite.
THE MINERALS OF RUSSIA: 22ND ANNUAL FM-TGMS-MSA MINERALOGICAL SYMPOSIUM
Among the species identified from the material collected there were rhodochrosite, mangan-neptunite, natrolite, aegirine, serandite, eudialyte and astrophyllite.
Mineralogy of the Saint-Amabile Sill

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