| 单词 | pinakiolite | 
| 释义 | pinakioliten. Mineralogy.   A mineral that is a borate of manganese and magnesium, Mg2MnO2(BO3), occurring as tabular black crystals of a metallic appearance that belong to the monoclinic system. ΘΚΠ the world > the earth > minerals > types of mineral > borates > 			[noun]		 > manganese magnesium borate sussexite1868 pinakiolite1891 1891    Amer. Jrnl. Sc. 41 251  				Pinakiolite is a new borate of manganese and magnesium. 1999    I. Kostov  & R. I. Kostov Crystal Habits Minerals vi. 274  				Pinakiolite, Mg2Mn(BO3)O2..is a good example for a Pc type borate, notwithstanding the isolated BO3 group in its structure. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). <  | 
	
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