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

alunite

/ˈal(j)ʊnʌɪt/

Mineralogy

noun

A mineral which was historically an important source of alum and is now mined for potassium and aluminium, and which occurs in granular or compact masses and also as tabular or rhombohedral crystals, colourless when pure but often yellowish or reddish-brown owing to impurities.

Alunite is a basic sulphate of potassium and aluminium, KAl₃(SO₄)₂(OH)₆. Crystal system: trigonal..

Origin

Early 19th century. From French alunite from alun + -ite.

单词	alunite
释义	alunite /ˈal(j)ʊnʌɪt/ Mineralogy noun A mineral which was historically an important source of alum and is now mined for potassium and aluminium, and which occurs in granular or compact masses and also as tabular or rhombohedral crystals, colourless when pure but often yellowish or reddish-brown owing to impurities. Alunite is a basic sulphate of potassium and aluminium, KAl₃(SO₄)₂(OH)₆. Crystal system: trigonal.. Origin Early 19th century. From French alunite from alun + -ite.
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