A variety of opal which reflects a reddish glow in a bright light; called also fire-opal.
| 单词 | θ7027 |
| 释义 | the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > quartz > amorphous quartz or opal > others (27) girasol1588 A variety of opal which reflects a reddish glow in a bright light; called also fire-opal. oculus mundi1661 A variety of opal which becomes transparent on absorbing water; = hydrophane, n. hydrophane1784 A variety of opaque or partly translucent opal which absorbs water upon immersion and becomes transparent. cacholong1791 A variety of the opal, opaque, bluish-white, porcelain-white, pale yellowish or reddish. pitchstone1794 Mineralogy. = resin opal n. at resin, n. adj.compounds 2. Obsolete. pyrophane1794 a mineral said to become translucent or to show colour when warmed, esp. a form of opal with this property, made by impregnating hydrophane with… semi-opal1794 An inferior variety of opal harder and more opaque than common opal. wood-stone1794 petrified wood, esp. a form of quartz consisting of silicified wood. fire opal1811 a variety of opal showing flame-coloured internal reflections; (also) a stone of this. wood-opal1816 opal formed by petrifaction of wood, opalized or silicified wood. sun opal1818 a variety of opal showing red or yellow internal reflections; (also) a stone of this; cf. fire opal n. at fire, n. int.compounds 2a. isopyre1827 An impure variety of opal, containing admixtures of alumina, sesquioxide of iron, and lime. jasper-opal1843 an impure opal containing iron oxide and having the colour of yellow jasper. opal jasper1848 = jasper-opal n. at jasper, n.1 compounds 3. resin opal1850 a brownish-yellow variety of common opal with a resinous lustre. natural glass1853 any of various minerals (such as obsidian and tachylite) that resemble glass in their appearance and amorphous structure, having solidified from… pitch opal1861 a yellow to brown variety of common opal with a pitchy lustre; cf. resin opal n. at resin, n. adj.compounds 2. vitrite1866 (See quots.) jasp-opal1868 = jasper-opal n. at jasper, n.1 compounds 3. opal-agate1868 a form of opal with a banded structure of different colours. pearl opal1872 a pale whitish variety of opal; = cacholong, n. harlequin1873 The Oriental or noble opal. Also attributive. harlequin opal1887 = 4. wax-opal1896 (see quot.). potch1897 In full potch opal. Opal that has no play of colour and is of little or no value; (also) a flat colour characteristic of this; potch and (or with) c… moss opal1904 a variety of opal containing dendritic markings like those of moss agate. nobby1919 A black opal occurring as a nodule coated with sandstone or opal dirt (the characteristic form at Lightning Ridge, New South Wales). |
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