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单词 Common mica
释义

Common mica

中文百科

白云母 Muscovite

(重定向自Common mica)
Fuchsita.
Muscovite with beryl (var. morganite) from Paprok, Afghanistan (dimensions: 5.9×4.8×3.4 cm)

白云母(英语:muscovite mica)为硅酸盐矿物的一种。化学式为KAl2□AlSi3O10(OH)2,晶体结构为单斜晶系。它具有各向异性,可产生强双折射现象。

白云母是最常见的云母,可见于花岗岩、伟晶岩、片麻岩和片岩中。

英语百科

Muscovite 白云母

(重定向自Common mica)
Muscovite with beryl (var. morganite) from Paprok, Afghanistan (dimensions: 5.9×4.8×3.4 cm)

Muscovite (also known as common mica, isinglass, or potash mica) is a phyllosilicate mineral of aluminium and potassium with formula KAl2(AlSi3O10)(F,OH)2, or (KF)2(Al2O3)3(SiO2)6(H2O). It has a highly perfect basal cleavage yielding remarkably thin laminæ (sheets) which are often highly elastic. Sheets of muscovite 5 m × 3 m have been found in Nellore, India.

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更新时间:2025/6/17 12:47:52