ultramafic rock
31Abitibi greenstone belt — The Abitibi greenstone belt is a 2,800 2,600 million year old greenstone belt that spans across the Ontario Quebec border in Canada. It is mostly made of volcanic rocks, but also includes ultramafic rocks, mafic intrusions, granitoid rocks, and… …
32Cornwall — For other uses, see Cornwall (disambiguation). Cornwall Kernow Flag Motto of County Council: Onen …
33Trevorite — is a very rare nickeliferous mineral belonging to the spinel group. It has the chemical formula NiFe3+O4. It is a black mineral with the typical spinel properties of crystallising in the cubic system, black streaked, infusible and insoluble in… …
34Geology of Cornwall — The Geology of Cornwall is dominated by its granite backbone formed during the Variscan orogeny. Around this is an extensive metamorphic aureole (known locally as killas) formed in the mainly Devonian slates that make up most of the rest of the… …
35Twin Sisters Mountain — Infobox Mountain Name = Twin Sisters Mountain Photo = Twin Sisters Mountain 3433.jpg Caption = As seen from southern flank of Mount Baker Elevation = convert|7020|ft|m|0|lk=on [http://www.peakbagger.com/peak.aspx?pid=1620 South Twin] , Peakbagger …
36Peridot — Infobox mineral name = Peridot category = Mineral boxwidth = boxbgcolor = caption = formula = (Mg, Fe)2SiO4 molweight = color = Yellow, to yellow green, olive green, to brownish habit = system = Orthorhombic twinning = cleavage = Poor fracture =… …
37Potton, Quebec —   Township   Location within Memphrémagog Regional County Municipality …
38Mount Apoi — アポイ岳 …
39Nepenthes danseri — Herbarium specimen of N. danseri collected in 1949 Conservation status …
40Murrin Murrin Joint Venture — Murrin Murrin Location …
