Any naturally occurring mineral substance which is clear and transparent like ice; esp. a form of quartz (= rock crystal, n. 1). Often in…
| 单词 | θ215618 |
| 释义 | society > occupation and work > materials > raw material > gem or precious stone > rock crystal > [noun] (107) crystalOE Any naturally occurring mineral substance which is clear and transparent like ice; esp. a form of quartz (= rock crystal, n. 1). Often in… diamond1591 transferred. Applied (usually with distinguishing epithet) to other crystalline minerals, resembling the diamond in brilliancy; as Bristol diamond… mountain crystal1598 quartz; a quartz crystal. rock crystal1598 Quartz in the form of transparent colourless crystals (usually hexagonal prisms). Welsh diamond1705 = rock crystal, n. Irish diamond1774 (a piece of) rock crystal (from Ireland); (formerly also) †marcasite (obsolete). magne-crystal1870 a crystal acted upon by a magnetic field. Subcategories:— varieties of (9) — piece of (4) — amethyst (5) — citrine (2) — sapphire-quartz (3) — rose-quartz (2) — smoky quartz (3) — chalcedony (46) — jasper (15) — aventurine (3) — green quartz (2) — porphyry (6) |
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