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单词 asmanite
释义

asmanite

英汉-汉英词典
n. 陨鳞石英
词组 | 习惯用语
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  • assessment n. (为征税对财产所作的)估价 评估,评定 评价,看法 核定的付款额
  • easement n. 缓和;减轻;地役权
  • Tasmanian adj. 塔斯梅尼亚的 n. 塔斯梅尼亚人
  • Masonite n. 梅森奈特纤维板(商标名)
asmanite n. [矿物] 陨鳞石英
英语百科

Tridymite

Crystal structure of α-tridymite

Tridymite is a high-temperature polymorph of silica and usually occurs as minute tabular white or colorless pseudo-hexagonal crystals, or scales, in cavities in felsic volcanic rocks. Its chemical formula is SiO2. Tridymite was first described in 1868 and the type location is in Hidalgo, Mexico. The name is from the Greek tridymos for triplet as tridymite commonly occurs as twinned crystal trillings.

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