英语词汇“pyroaurite”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

pyroaurite

Mineralogy

noun

A rare mineral occurring mainly in serpentinites and hydrothermal vein deposits as yellowish or greenish tabular or platy crystals; (also attributive) designating a group of minerals having a similar crystal structure.

Pyroaurite is a hydroxide and carbonate of magnesium and ferric iron, Mg₆Fe₂CO₃(OH)₁₆·4H₂O, dimorphous with sjögrenite and grouped with hydrotalcite. Crystal system: trigonal..

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From pyro- + classical Latin aurum gold + -ite, after Swedish pyroaurit, so called because it turns golden-yellow on moderate heating.

单词	pyroaurite
释义	pyroaurite Mineralogy noun A rare mineral occurring mainly in serpentinites and hydrothermal vein deposits as yellowish or greenish tabular or platy crystals; (also attributive) designating a group of minerals having a similar crystal structure. Pyroaurite is a hydroxide and carbonate of magnesium and ferric iron, Mg₆Fe₂CO₃(OH)₁₆·4H₂O, dimorphous with sjögrenite and grouped with hydrotalcite. Crystal system: trigonal.. Origin Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From pyro- + classical Latin aurum gold + -ite, after Swedish pyroaurit, so called because it turns golden-yellow on moderate heating.
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