| 单词 | oligoclase |
| 释义 | oligoclase (once / 393978 pages) n WORD FAMILY oligoclase USAGE EXAMPLESFelspar if present may be orthoclase and oligoclase. Various, Encyclopaedia Britannica, 11th Edit...(2011) These larger felspars have no crystalline outlines and consist of orthoclase or microcline surrounded by borders of white oligoclase. Various, Encyclopaedia Britannica, 11th Edit...(2011) The accessory minerals of these rocks are principally oligoclase, muscovite, apatite and zircon. Various, Encyclopaedia Britannica, 11th Edit...(2010) n any of a series of triclinic feldspars that form rocks Syn|Hypo|Hyper plagioclase albite, white feldspar a widely distributed feldspar that forms rocks anorthiterare plagioclastic feldspar occurring in many igneous rocks feldspar, felspar any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium |
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