Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminium cyclosilicate. Iron is almost always present, and a solid solution exists between...
12 KB (974 words) - 07:36, 8 October 2024
Cordierites is a genus of fungi in the family Cordieritidaceae. The genus name of Cordierites is in honour of François Simon Cordier (1797-1874), a French...
2 KB (168 words) - 01:00, 2 March 2024
common filter is made of cordierite (a ceramic material that is also used as catalytic converter supports (cores)). Cordierite filters provide excellent...
34 KB (4,143 words) - 00:01, 1 November 2024
the unaided eye, there are often larger crystals (porphyroblasts) of cordierite, garnet or andalusite scattered through the fine matrix, and these may...
17 KB (2,160 words) - 14:08, 17 August 2024
plagioclase + garnet ± orthopyroxene (higher pressure) In metapelites: garnet + cordierite + sillimanite + K-feldspar + quartz ± biotite sapphirine + orthopyroxene...
13 KB (1,402 words) - 19:59, 8 February 2024
((Fe+2,Mg)2Al4Si5O18) is a silicate mineral, the iron-rich analogue of cordierite. It was first described in 1968 for an occurrence in Dolní Bory, Vysočina...
10 KB (1,206 words) - 17:36, 19 January 2024
Combeite Conichalcite Connellite Cooperite Copiapite Copper Corderoite Cordierite Corkite Cornubite Cornwallite Corundum Cotunnite Covellite Coyoteite Creedite...
42 KB (2,782 words) - 18:28, 20 October 2024
distinctive minerals, such as garnet, staurolite, kyanite, sillimanite, or cordierite. Because schists are a very large class of metamorphic rock, geologists...
17 KB (1,847 words) - 15:58, 1 October 2024
blue-yellow / blue-colorless Benitoite (strong): colorless / dark blue Cordierite (aka Iolite) (orthorhombic; very strong): pale yellow / violet / pale...
9 KB (1,028 words) - 22:01, 13 August 2024
abundance of microscopic inclusions, with examples including opal and cordierite, jadeite. Many minerals with a greasy lustre also feel greasy to the touch...
12 KB (1,158 words) - 10:42, 16 October 2024
smoke, gases and kiln debris: Modern saggars are made of alumina ceramic, cordierite ceramic, mullite ceramic silicon carbide and in special cases from zirconia...
9 KB (1,172 words) - 09:42, 7 January 2024
Clinochlore Clinohumite Clinozoisite Clintonite Cobaltite Colemanite Cordierite Iolite (var.) Cornwallite Corundum Ruby (var.) Sapphire (var.) Padparadscha...
13 KB (867 words) - 01:34, 24 August 2024
varieties include the gemstones emerald (green) and aquamarine (bluish). Cordierite is structurally similar to beryl, and is a common metamorphic mineral...
109 KB (13,007 words) - 08:41, 16 October 2024
granulite. It occurs with andalusite, kyanite, potassium feldspar, almandine, cordierite, biotite and quartz in schist, gneiss, hornfels and also rarely in pegmatites...
6 KB (471 words) - 19:52, 9 May 2024
Pezzottaite – Cs(Be2Li)Al2Si6O18 Osumilite – (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30 Cordierite – (Mg,Fe)2Al4Si5O18 Sekaninaite – (Fe+2,Mg)2Al4Si5O18 9-member single...
20 KB (1,897 words) - 18:21, 16 July 2024
required. The substrate is structured to produce a large surface area. The cordierite ceramic substrate used in most catalytic converters was invented by Rodney...
56 KB (6,722 words) - 00:54, 14 October 2024
orthopyroxene + cordierite + residual feldspars The melt reaction produces a granitic melt and solid orthopyroxene and cordierite. Cordierite in restite inclusions...
4 KB (608 words) - 12:55, 24 October 2023
for up to 80% of the mass of a kiln charge. Commonly used materials are cordierite (up to 1275 °C), mullite (up to 1750 °C), silicon carbide (up to 1500 °C)...
7 KB (743 words) - 10:23, 19 March 2023
ruby deposits in the Tsavo area of Kenya, eliminated dumortierite and cordierite as possibilities, and sent samples to his father, Hyman Saul, vice president...
25 KB (2,632 words) - 14:50, 10 October 2024
subspherical or polyhedral clots that are often individual minerals such as cordierite, biotite, chlorite, andalusite and others. Like fleckschiefer, fruchtschiefer...
2 KB (168 words) - 18:40, 25 November 2023
[citation needed] These minerals include cordierite, muscovite, garnet, and sillimanite. Within S-type volcanics, cordierite occurs in place of clinopyroxene...
21 KB (2,607 words) - 13:24, 16 August 2024
combination. Examples of peraluminous minerals include biotite, muscovite, cordierite, andalusite and garnet. Peraluminous corresponds to the aluminum saturation...
2 KB (203 words) - 18:01, 22 July 2023
converters are made of a ceramic that contains a large proportion of synthetic cordierite, 2MgO•2Al2O3•5SiO2, which has a low coefficient of thermal expansion....
2 KB (267 words) - 18:40, 18 July 2023
cristobalite, and if sufficient alumina is available the formation of cordierite. Nepheline syenite increases the dissolution of silica. Petalite promotes...
3 KB (439 words) - 15:03, 15 August 2024
include andalusite, biotite and cordierite. The metamorphic prograde sequence of the Buchan zone series is: biotite - cordierite - andalusite - sillimanite...
6 KB (587 words) - 17:02, 28 February 2021
Corderoite Cde Carbobystrite Cbys Chalcothallite Ccth Chukhrovite-(Nd) Chk-Nd Cordierite Crd Carbocernaite Cbc Challacolloite Chc Chukhrovite-(Y) Chk-Y Cordylite-(Ce)...
180 KB (418 words) - 05:15, 30 June 2024
develops and markets specialized products for paints and coatings, plastics, cordierite ceramics, consumables, pharmaceutical and paper applications. In July...
4 KB (379 words) - 22:15, 12 September 2024
Ramskou posited that the "sunstone" could have been one of the minerals (cordierite or Iceland spar) that polarize light and by which the azimuth of the sun...
19 KB (2,035 words) - 02:17, 1 September 2024
and medium to high grade metamorphic rocks in association with garnet, cordierite, anthophyllite, cummingtonite, sapphirine, sillimanite, kyanite, quartz...
4 KB (266 words) - 01:01, 4 January 2024
rimming relict orthopyroxenes and olivine, and as an accessory mineral in cordierite-bearing gneisses and schists. Anthophyllite also occurs as a retrograde...
7 KB (578 words) - 10:56, 2 September 2023