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Definition of cordierite in English: cordieritenoun ˈkɔːdɪərʌɪtˈkôrdēəˌrīt mass nounA dark blue mineral occurring chiefly in metamorphic rocks. It consists of an aluminosilicate of magnesium and iron, and also occurs as a dichroic gem variety. 堇青石 Example sentencesExamples - Some gray to dark gray cordierite also exhibits excellent transparency.
- The spotted textures are marked by the growth of biotite, cordierite and andalusite on the metamorphic foliation.
- Sericite is fine-grained muscovite formed by alteration of such minerals as feldspar, cordierite, and sillimanite.
- While admitting that cordierite has low heat resistance when compared to silicon carbide, he feels that the material's limitations are offset by the total system’s approach.
- Although biotite is capable of this, other minerals such as muscovite, garnet and cordierite are more efficient and preferentially occur in strongly peraluminous rocks.
- In 1995 field reconnaissance in the central Laramie Range of southeastern Wyoming led to the discovery of a new source of gem- and near-gem-quality cordierite and corundum.
- This granulite consists of garnet, biotite, muscovite, quartz, plagioclase and cordierite.
- In addition, poor-quality, translucent to cloudy, dark gray cordierite is also present, as is corundum with well-developed rhombohedral parting that tends to crumble.
- Magnetite, because of its magnetism, and cordierite, because of its dichroism, were used in ancient times for navigational purposes.
- Sillimanite, cordierite, apatite, monazite and zircon are also present.
- The presence of detrital cordierite in soil 300 feet up-slope from the outcrop suggests that the deposit may have a minimum strike length of 500 feet.
- Monazite clusters occur in a variety of host minerals, including cordierite, quartz, biotite and andalusite.
- The grayish-blue, partly gemmy cordierite, when first discovered in the early twentieth century, was mistakenly reported as corundum.
- The DPF is made of a cordierite ceramic which lowers the material costs and is also easy to manufacture.
OriginEarly 19th century: named after Pierre L. A. Cordier (1777–1861), French geologist, + -ite1. Definition of cordierite in US English: cordieritenounˈkôrdēəˌrīt A dark blue mineral occurring chiefly in metamorphic rocks. It consists of an aluminosilicate of magnesium, and also occurs as a dichroic gem variety. 堇青石 Example sentencesExamples - Monazite clusters occur in a variety of host minerals, including cordierite, quartz, biotite and andalusite.
- Sillimanite, cordierite, apatite, monazite and zircon are also present.
- The presence of detrital cordierite in soil 300 feet up-slope from the outcrop suggests that the deposit may have a minimum strike length of 500 feet.
- Magnetite, because of its magnetism, and cordierite, because of its dichroism, were used in ancient times for navigational purposes.
- In 1995 field reconnaissance in the central Laramie Range of southeastern Wyoming led to the discovery of a new source of gem- and near-gem-quality cordierite and corundum.
- While admitting that cordierite has low heat resistance when compared to silicon carbide, he feels that the material's limitations are offset by the total system’s approach.
- In addition, poor-quality, translucent to cloudy, dark gray cordierite is also present, as is corundum with well-developed rhombohedral parting that tends to crumble.
- Although biotite is capable of this, other minerals such as muscovite, garnet and cordierite are more efficient and preferentially occur in strongly peraluminous rocks.
- Sericite is fine-grained muscovite formed by alteration of such minerals as feldspar, cordierite, and sillimanite.
- The spotted textures are marked by the growth of biotite, cordierite and andalusite on the metamorphic foliation.
- The DPF is made of a cordierite ceramic which lowers the material costs and is also easy to manufacture.
- Some gray to dark gray cordierite also exhibits excellent transparency.
- The grayish-blue, partly gemmy cordierite, when first discovered in the early twentieth century, was mistakenly reported as corundum.
- This granulite consists of garnet, biotite, muscovite, quartz, plagioclase and cordierite.
OriginEarly 19th century: named after Pierre L. A. Cordier (1777–1861), French geologist, + -ite. |