Any of a series of triclinic feldspars (sodium and calcium aluminosilicates), originally characterized as having two cleavages at an oblique…
| 单词 | θ7034 | 
| 释义 | the world > the earth > minerals > types of mineral > silicates > tectosilicate > 			[noun]		 > feldspar > plagioclase (20)		 plagioclase1868 Any of a series of triclinic feldspars (sodium and calcium aluminosilicates), originally characterized as having two cleavages at an oblique… Subcategories:— 			albites			(7)		 — 			oligoclase			(1)		 — 			andesine			(2)		 — 			labradorite			(6)		 — 			anorthities			(3)		  | 
	
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