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GLIMMERITE

Glimmerite

Igneous rock

Glimmerite is an igneous rock consisting almost entirely of dark mica (biotite or phlogopite). Glimmerite has also been referred to as biotitite, though

Glimmerite

Siilinjärvi carbonatite

completely glimmerites. The central ore body comprises glimmerites and carbonatites. The phlogopite-rich ore-bearing rocks vary from almost pure glimmerite to

Siilinjärvi carbonatite

Siilinjärvi_carbonatite

List of gemstones by species

Anyolite Bauxite Concretions Bloodstone (Heliotrope) Eilat stone Epidosite Glimmerite Goldstone (glittering glass) Hawk's eye Helenite (artificial glass made

List of gemstones by species

List_of_gemstones_by_species

Biotite

Subgroup of phyllosilicate minerals within the trioctahedral mica group

composed almost entirely of dark mica (biotite or phlogopite) is known as a glimmerite or biotitite. Biotite may be found in association with its common alteration

Biotite

Ilmenite

Titanium-iron(II) oxide mineral

association of minerals (mica-amphibole-rutile-ilmenite-diopside) assemblage of glimmerite xenoliths. Manganiferous ilmenite is found in granitic rocks and also

Ilmenite

Bombo Headland Quarry Geological Site

Former quarry and geological site in Australia

probably the same dyke, Wilshire & Binns (1961) recorded hornblendite and glimmerite as the dominant xenoliths. Present exposures of most of the other dykes

Bombo Headland Quarry Geological Site