allanite (orthite) Mineral, with the formula (Ca,Ce,Y,La,Th)2(AlFe)3Si3O12(OH); sp. gr. 3.4–4.2; hardness 5.0–6.5; monoclinic; light brown to black; pitchy to sub-metallic lustre; faintly radioactive; crystals normally prismatic, often tabular, sometimes massive; cleavage imperfect hardness; often occurs as an accessory mineral in granitic rocks, syenites, gneisses, and skarns.
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wolframite , wolframite Ore mineral for tungsten, with the formula (Fe,Mn)WO4; sp. gr. 7.0–7.5; hardness 5.0–5.5; monoclinic; grey-black to brownish-black; browni… Zircon , zircon Mineral, ZrSiO4; sp. gr. 4.6; hardness 7.5; tetragonal; most commonly light brown or reddish-brown, but sometimes grey, yellow, or green; vitr… Uraninite , uraninite (pitchblende) Mineral, UO2; sp. gr. from 8.5 when massive to 10 for unaltered crystals; hardness 5–6; cubic; it is brownish-black or grey-b… ilmenite , ilmenite Mineral, FeTiO3; sp. gr. 4.5–5.0; hardness 5–6; trigonal; black; black to brownish-red streak; sub-metallic lustre; crystals normally thick… 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… Cancrinites , haüyne A feldspathoid and member of the sodalite group of minerals, formula (Na,Ca)4–8(Al6Si6O24)(SO4,S)1–2; sp. gr. 2.5; hardness 5.5; greyish-white…
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Allan, Hon. Nancy (St. Vital) Minister of Labour and Immigration, Minister Responsible for Multiculturalism, Minister Responsible for the Status of Women, and Minister Charged with the Administration of the Workers Compensation Act