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marcasite
[ mahr-kuh-sahyt ]
noun
- Also called white iron pyrites. a common mineral, iron disulfide, FeS 2 , chemically similar to pyrite but crystallizing in the orthorhombic system.
- any of the crystallized forms of iron pyrites, much used in the 18th century for ornaments.
- a specimen or ornament of this substance.
marcasite
/ ˈmɑːkəˌsaɪt; ˌmɑːkəˈsɪtɪkəl /
noun
- a metallic pale yellow mineral consisting of iron sulphide in orthorhombic crystalline form used in jewellery. Formula: FeS 2
- a cut and polished form of steel or any white metal used for making jewellery
marcasite
/ mär′kə-sīt′,-zīt′ /
- A light yellow to gray, metallic, orthorhombic mineral. Marcasite is a polymorph of pyrite and looks similar to it but has a lower specific gravity, is paler in color, and often has a radiating fibrous structure. Chemical formula: FeS 2 .
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Derived Forms
- marcasitical, adjective
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Other Words From
- mar·ca·sit·i·cal [mahr-k, uh, -, sit, -i-k, uh, l], adjective
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Word History and Origins
Origin of marcasite1
1375–1425; late Middle English < Medieval Latin marcasīta < Arabic marqashīṭā < Aramaic marqəshītā
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Word History and Origins
Origin of marcasite1
C15: from Medieval Latin marcasīta, from Arabic marqashītā, perhaps from Persian
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Example Sentences
Instead, Lagerfeld explored the darkness of malachite, iron ore, and marcasite.
From The Daily Beast
As neat a shape as you would see in a day's journey, with the prettiest color, and eyes as bright as those marcasite buttons!
From Project Gutenberg
Marcasite is thus the less stable of the two modifications of iron disulphide.
From Project Gutenberg
It is a noteworthy fact that whilst pyrites has been prepared artificially, marcasite has not.
From Project Gutenberg
Marcasite occurs under the same conditions as pyrites, but is much less common.
From Project Gutenberg
Yellow sulphuret of iron, commonly called Marcasite, or Martial pyrites.
From Project Gutenberg
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