ultrabasic rock
31Magnesite — General Category Carbonate mineral Chemical formula MgCO3 …
32Anthophyllite — Infobox mineral name = Anthophyllite category = boxwidth = boxbgcolor = caption = formula = Hydrous Magnesium Iron silicate (Mg,Fe)7Si8O22(OH)2 molweight = color = gray to green, brown, and beige habit = Rarely as distinct crystals. Commonly… …
33Geology 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… …
34George Malcolm Brown — Sir George Malcolm Brown, FRS (October 5, 1925 March 27, 1997) was one of the most respected geologists of the second half of the Twentieth century. His formidable reputation as an igneous petrologist enabled him to become one of the few… …
35List of Shetland islands — This is a list of Shetland islands in Scotland. The Shetland archipelago is located 100 kilometres (62 miles) north of mainland Scotland and the capital Lerwick is almost equidistant from Bergen in Norway and Aberdeen in Scotland. The Shetland… …
36acid and basic rocks — Division of igneous rocks on the basis of their silicate mineral content, these minerals usually being the most abundant in such rocks. Rocks are described as acid, intermediate, basic, and ultrabasic, in order of decreasing silica content,… …
37oxide mineral — Any naturally occurring inorganic compound with a structure based on close packed oxygen atoms in which smaller, positively charged metal or other ions occur. Oxide minerals are common in all rock types, whether igneous, sedimentary, or… …
38saxonite — /sakˈsə nīt/ noun An ultrabasic igneous rock consisting of olivine and enstatite ORIGIN: ↑Saxon and ↑ ite …
