Synonymer & Information om | Engelska ordet ANDALUSITE

Exempel på hur man kan använda ANDALUSITE i en mening

• It is the high pressure polymorph of andalusite and sillimanite, and the presence of kyanite in metamorphic rocks generally indicates metamorphism deep in the Earth's crust.
• Sillimanite or fibrolite is one of three aluminosilicate polymorphs, the other two being andalusite and kyanite.
• The mascles on the arms of the House of Rohan refer to crystal twinnings, which are large crystals of chiastolite (andalusite) that develop in Ordovician schists.
• In areas around Georgetown, California, US, metamorphosed sediments contained andalusite and chiastolite in a graphite-rich metasediment.
• Elbaite forms in igneous and metamorphic rocks and veins in association with lepidolite, microcline, and spodumene in granite pegmatites; with andalusite and biotite in schist; and with molybdenite and cassiterite in massive hydrothermal replacement deposits.
• The non-metallic minerals include andalusite, asbestos, corundum, clay, dolomite, limestone, limekankan, molding sand, quartz, soap stone, granite and red ochre.
• Iran also produces ferromanganese, ferromolybdenum, nepheline syenite, demantoids, phosphate rock, selenium, shell, andalusite, rockwool, garnet, gabbro, diorite, vermiculite, attapulgite, calcium, barium, rare earth elements, scandium, yttrium and zeolite, and had the capacity to mine onyx.
• The accompanying amphibolite facies metamorphism is characterized by sillimanite and, locally, garnet, andalusite, and cordierite.
• It occurs with pyrophyllite, kyanite, andalusite, lazulite, augelite, alunite, kaolinite and quartz.
• As of 2014, a total of around 50 minerals and 10 varieties have been discovered here, including inter alia the well-known minerals andalusite, beryl, gypsum, haematite, muscovite, sphalerite, pyrite, topaz, wavellite and zircon, as well as various garnets, tourmalines, (dravite, elbaite, schorl) and wolframites.
• Besides the common minerals quartz, alkali feldspar, plagioclase, biotite, muscovite as well as calcite, dolomite and gypsum rarer minerals occur, for example actinolite, allanite, andalusite, antigorite, apatite, arsenopyrite, baryte, cassiterite, chalcedony, chalcopyrite, chlorite, chromite, clinopyroxene, chrysotile, cordierite, cyanite, epidote, galena, garnet, goethite, graphite, hematite, hornblende, ilmenite, kaolinite, limonite, magnetite, manganite, marcasite, montmorillonite, prehnite, psilomelane, pyrite, pyrolusite, pyrrhotite, rutile, sillimanite, sphalerite, sphene, staurolite, tourmaline and zircon.
• Kaolinite and dickite occur at lower temperatures whereas pyrophyllite and andalusite occur under high temperature conditions (T > 300°C).
• Knotenschiefer is a variety of spotted slate characterized by conspicuous subspherical or polyhedral clots that are often individual minerals such as cordierite, biotite, chlorite, andalusite and others.
• Adjacent to the sills, the Hatakai Shale has been altered to knotted hornfels containing porphyroblasts of andalusite and cordierite that have been replaced by muscovite and green chlorite, respectively.
• The trace minerals are actinolite, chlorite, epidote, andalusite, sphene, zircon, rutile, apatite, tourmaline, and limonite.
• Porphyroblasts of cordierite are still found here, but instead of biotite, garnet and andalusite porphyroblasts appear instead.
• The geological structure also partially contains admixtures of gemstones such as staurolite, andalusite, garnet and sillimanite.
• The geological structure also contains admixtures of gemstones such as staurolite, andalusite, garnet, and sillimanite.

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