feldspar

• n. [礦物] 長石

feld, 同field, 場地，野外。spar,晶石。

feldspar (n.)

type of mineral common in crystalline rocks, 1785, earlier feldspath (1757), from older German Feldspath (Modern German Feldspat), from Feld "field" (see field (n.)) + spath "spar, non-metallic mineral, gypsum" (see spar (n.2)); spelling influenced by English spar "mineral." Related: Feldspathic.

1. Jadeite jade consists of minerals of pyroxene, amphibole and feldspar groups.

翡翠由輝石族 、 角閃石族、長石族礦物組成.

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2. Industry: petroleum, diamonds, iron ore, phosphates, feldspar, bauxite, uranium, gold.

工業: 原油, 鑽石, 鐵礦, 磷酸鹽, 長石礦, 鋁氧石, 鈾, 黃金.

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3. Feldspar commonly used are: granite a long stone set fire to rocks.

常用的長石主要有: 花崗岩、霞硌、正長石等火燒岩.

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4. This sandstone consists of quartz primarily and feldspar secondly.

這種砂岩的成份以石英為主,長石次之.

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5. The ore - hunting indicator is of calcite - potassium feldspar veins containing pyritohedron pyrite.

直接找礦標誌為含五角十二麵體黃鐵礦鐵方解石鉀長石脈.

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