cancrinite
cancrinite A member of the feldspathoid group of silicate minerals with a complex formula, approximately (Na,Ca,K)6–8 [AlSiO4]6(CO3,SO4,Cl)1–2.1–5H2O, it may be an alteration product of nepheline, and is related to vishnevite, the sulphate-rich variety; normally massive; occurs in nepheline syenites.
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Incor… Laoighis , Laois •babiche, Dalglish, fiche, Laois, leash, niche, nouveau riche, pastiche, quiche, Rajneesh, schottische •microfiche • corniche • hashish •bakshe… Normal , nor·mal / ˈnôrməl/ • adj. 1. conforming to a standard; usual, typical, or expected: it's quite normal for puppies to bolt their food | normal working… nepheline , nepheline An important member of the feldspathoid group of silicate minerals with composition Na3(Na,K)[Al4Si4O16], which approximates to NaAlSiO4 (w… Leucite , leucite An important feldspathoid mineral KA1Si2O6; sp.gr.2.5; hardness 5.5–6.0; tetragonal; normally white or grey; vitreous lustre; crystals form v… Rutile , rutile
rutile An accessory mineral, TiO2; iron, niobium, and tantalum may also be present; sp. gr. 4.2–5.6; hardness 6.0–6.5; tetragonal; normally re…
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cancrinite