| 单词 | dogtooth spar | 
| 释义 | > as lemmasdogtooth spar   dogtooth spar  n. Mineralogy a variety of calcite in the form of dogtooth crystals (see  Compounds 2). ΚΠ 1728Dog-Tooth-Spar [see  Compounds 2].							 1823    H. J. Brooke Familiar Introd. Crystallogr. 87  				The dodecahedral variety of carbonate of lime, commonly called dog-tooth spar. 1969    Jrnl. Paleontol. 43 288/1  				Infilling of the original lime mud matrix into roughly equidimensional cavities that were lined by dog-tooth spar. 1989    Garden Hist. 17 24  				Calcite..is common throughout the grotto in a variety of crystal habits, including large dog tooth spar crystals. < as lemmas  | 
	
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