单词 | ranite |
释义 | raniten. Mineralogy. rare. A mineral of the zeolite group found in Norway, typically occurring as white aggregates or fibrous masses, and now regarded as identical with gonnardite. Ranite is a hydrous silicate of aluminium, calcium, and sodium, and is related to natrolite. Crystal system: orthorhombic. ΚΠ 1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) 609 Ranite occurs on the island Låven..in the Langesund fiord, Norway, where it has been formed from the alteration of elæolite. 1896 A. H. Chester Dict. Names Minerals 227 Ranite, S. R. Paijkull..(Rauit, error for Ranit). 1988 Min. Mag. 52 208/2 Ranite from the type locality of Lamo has negative elongation. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < |
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