| 单词 | spinel-crystal | 
| 释义 | > as lemmasspinel-crystal  c.  attributive, as  spinel-crystal,  spinel structure. ΚΠ 1851    Amer. Jrnl. Sci. 62 210  				Some of his specimens are spinel crystals..in one part, and true Houghite in another. 1944    C. Palache  et al.  Dana's Syst. Mineral. 		(ed. 7)	 I. 688  				Another chemical feature of interest is the ability of artificial Mg, Al spinel to contain considerable excess of Al2O3 without impairment of the spinel structure. 1967    M. Chandler Ceramics in Mod. World vi. 178  				Today most ferrites have spinel structures. < as lemmas | 
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