“hackmanite”的英文意思_释义_用法

单词

hackmanite

释义

hackmanite Min.|ˈhækmənaɪt|
[ad. Sw. hackmanit (L. H. Borgström 1901, in Geol. Föreningens Stockholm Förh. XXIII. 563), f. the name of Victor A. Hackman (1866–1941), Finnish geologist: see -ite¹.]
A pink or reddish violet variety of sodalite which loses its colour when exposed to daylight but regains it in the dark.
1903Jrnl. Chem. Soc. LXXXIV. ii. 304 Hackmanite, a new member of the sodalite group.1941Amer. Mineralogist XXVI. 441 The induced color change of hackmanite when exposed to ultra-violet light was first observed..on hackmanite from Bancroft, Ontario, which changed from pink to a raspberry shade or deep violet on exposure to ultra-violet light. The induced color faded rapidly and nearly completely on exposure to strong light.1970Physics Bull. Nov. 487/1 Geologists had found that freshly cleared rocks of a naturally occurring form of sodalite, hackmanite, exhibited a pink colour.

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