A name given to two distinct minerals which from their hardness have been used for implements and… jadeite, a silicate of sodium and aluminium…
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| 单词 | θ7040 |
| 释义 | the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > mixed or intergrowth feldspars (7) jade1595 A name given to two distinct minerals which from their hardness have been used for implements and… jadeite, a silicate of sodium and aluminium… granitone1811 (See quot. 1794.) saussurite1811 A very compact variety of zoisite. saussurite-gabbro n. a variety of gabbro in which the component feldspar and diallage have been partly altered to… aventurine feldspar1816 a mixture of oligoclase and orthoclase spangled with yellowish or reddish crystals. perthite1843 A variety of alkali feldspar usually consisting of roughly parallel intergrowths of an exsolved sodium-rich phase (as albite) and a potassium-rich… myrmekite1911 An intergrowth of plagioclase containing drops or wormlike forms of quartz. aventurine sunstone- = aventurine feldspar n. |
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