Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminium cyclosilicate. Iron is almost always present, and a solid solution exists between...

plagioclase + garnet ± orthopyroxene (higher pressure) In metapelites: garnet + cordierite + sillimanite + K-feldspar + quartz ± biotite sapphirine + orthopyroxene...

common filter is made of cordierite (a ceramic material that is also used as catalytic converter supports (cores)). Cordierite filters provide excellent...

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...

the unaided eye, there are often larger crystals (porphyroblasts) of cordierite, garnet or andalusite scattered through the fine matrix, and these may...

((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...

Combeite Conichalcite Connellite Cooperite Copiapite Copper Corderoite Cordierite Corkite Cornubite Cornwallite Corundum Cotunnite Covellite Coyoteite Creedite...

distinctive minerals, such as garnet, staurolite, kyanite, sillimanite, or cordierite. Because schists are a very large class of metamorphic rock, geologists...

blue-yellow / blue-colorless Benitoite (strong): colorless / dark blue Cordierite (aka Iolite) (orthorhombic; very strong): pale yellow / violet / pale...

abundance of microscopic inclusions, with examples including opal and cordierite, jadeite. Many minerals with a greasy lustre also feel greasy to the touch...

smoke, gases and kiln debris: Modern saggars are made of alumina ceramic, cordierite ceramic, mullite ceramic silicon carbide and in special cases from zirconia...

Clinochlore Clinohumite Clinozoisite Clintonite Cobaltite Colemanite Cordierite Iolite (var.) Cornwallite Corundum Ruby (var.) Sapphire (var.) Padparadscha...

granulite. It occurs with andalusite, kyanite, potassium feldspar, almandine, cordierite, biotite and quartz in schist, gneiss, hornfels and also rarely in pegmatites...

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...

varieties include the gemstones emerald (green) and aquamarine (bluish). Cordierite is structurally similar to beryl, and is a common metamorphic mineral...

required. The substrate is structured to produce a large surface area. The cordierite ceramic substrate used in most catalytic converters was invented by Rodney...

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)...

orthopyroxene + cordierite + residual feldspars The melt reaction produces a granitic melt and solid orthopyroxene and cordierite. Cordierite in restite inclusions...

ruby deposits in the Tsavo area of Kenya, eliminated dumortierite and cordierite as possibilities, and sent samples to his father, Hyman Saul, vice president...

subspherical or polyhedral clots that are often individual minerals such as cordierite, biotite, chlorite, andalusite and others. Like fleckschiefer, fruchtschiefer...

[citation needed] These minerals include cordierite, muscovite, garnet, and sillimanite. Within S-type volcanics, cordierite occurs in place of clinopyroxene...

combination. Examples of peraluminous minerals include biotite, muscovite, cordierite, andalusite and garnet. Peraluminous corresponds to the aluminum saturation...

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....

cristobalite, and if sufficient alumina is available the formation of cordierite. Nepheline syenite increases the dissolution of silica. Petalite promotes...

include andalusite, biotite and cordierite. The metamorphic prograde sequence of the Buchan zone series is: biotite - cordierite - andalusite - sillimanite...

and medium to high grade metamorphic rocks in association with garnet, cordierite, anthophyllite, cummingtonite, sapphirine, sillimanite, kyanite, quartz...

develops and markets specialized products for paints and coatings, plastics, cordierite ceramics, consumables, pharmaceutical and paper applications. In July...

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...

metamorphic grade. Throughout the matrix, porphyroblasts of biotite and cordierite can be found. The biotites in the exterior aureole become more iron- and...

metamorphic rock) and temperatures of ca. 500 °C. At these temperatures cordierite grows to the size of grains of corn, which is where its name comes from;...