diaspore

di·a·spore

D0200200 (dī′ə-spôr′)n.1. A white, pearly hydrous aluminum oxide, AlO(OH), found in bauxite, corundum, and dolomite and used as a refractory and abrasive.2. Botany See disseminule.

[From Greek diasporā, dispersion, scattering; see Diaspora.]

diaspore

(ˈdaɪəˌspɔː) n1. (Minerals) a white, yellowish, or grey mineral consisting of hydrated aluminium oxide in orthorhombic crystalline form, found in bauxite and corundum. Formula: AlO(OH)2. (Botany) any propagative part of a plant, esp one that is easily dispersed, such as a spore[C19: from Greek diaspora a scattering, dispersion; see Diaspora: so named from its dispersion and crackling when highly heated]

di•a•spore

(ˈdaɪ əˌspɔr, -ˌspoʊr)

n. a hydrous oxide of aluminum, AlO(OH), occurring as a mineral in white to greenish crystals or in foliated masses. [< French (1801); see Diaspora]

Translations

diásporoдиаспора

Diaspore

diaspore

[′dī·ə‚spȯr] (mineralogy) AlO(OH) A mineral composed of some bauxites occurring in white, lamellar masses; crystallizes in the orthorhombic system.

Diaspore

a mineral, natural aluminum hydroxide, AIOOH; contains 85 percent AI₂O₃ and 15 percent H₂O, often with impurities of iron, chromium, manganese, and gallium oxides. Diaspores crystallizes in a rhombic system, forming lamellar, sometimes acicular, crystals. Its color is white, yellowish or pinkish white, or greenish gray. Its hardness on the mineralogical scale is 6–7; its density varies depending on the content of impurities, from 3,300 to 3,500 kg/m³. When annealed it becomes α-Al₂O₂ (corundum).

Diaspore is mainly concentrated in bauxites, where it appears as an ore-forming mineral together with boehmite and gibbsite. In association with corundum and chloritoids, it is found in emery deposits that are produced by the metamorphic change of bauxites. Diaspore is found in metamorphic, hydrothermic; and metasomatic deposits of the secondary quartz type.

单词	diaspore
释义	diaspore di·a·spore D0200200 (dī′ə-spôr′)n.1. A white, pearly hydrous aluminum oxide, AlO(OH), found in bauxite, corundum, and dolomite and used as a refractory and abrasive.2. Botany See disseminule. [From Greek diasporā, dispersion, scattering; see Diaspora.] diaspore (ˈdaɪəˌspɔː) n1. (Minerals) a white, yellowish, or grey mineral consisting of hydrated aluminium oxide in orthorhombic crystalline form, found in bauxite and corundum. Formula: AlO(OH)2. (Botany) any propagative part of a plant, esp one that is easily dispersed, such as a spore[C19: from Greek diaspora a scattering, dispersion; see Diaspora: so named from its dispersion and crackling when highly heated] di•a•spore (ˈdaɪ əˌspɔr, -ˌspoʊr) n. a hydrous oxide of aluminum, AlO(OH), occurring as a mineral in white to greenish crystals or in foliated masses. [< French (1801); see Diaspora] Translations diásporoдиаспора Diaspore diaspore [′dī·ə‚spȯr] (mineralogy) AlO(OH) A mineral composed of some bauxites occurring in white, lamellar masses; crystallizes in the orthorhombic system. Diaspore a mineral, natural aluminum hydroxide, AIOOH; contains 85 percent AI₂O₃ and 15 percent H₂O, often with impurities of iron, chromium, manganese, and gallium oxides. Diaspores crystallizes in a rhombic system, forming lamellar, sometimes acicular, crystals. Its color is white, yellowish or pinkish white, or greenish gray. Its hardness on the mineralogical scale is 6–7; its density varies depending on the content of impurities, from 3,300 to 3,500 kg/m³. When annealed it becomes α-Al₂O₂ (corundum). Diaspore is mainly concentrated in bauxites, where it appears as an ore-forming mineral together with boehmite and gibbsite. In association with corundum and chloritoids, it is found in emery deposits that are produced by the metamorphic change of bauxites. Diaspore is found in metamorphic, hydrothermic; and metasomatic deposits of the secondary quartz type. diaspore diaspore (dī′ə-spôr′)n.1. A white, pearly hydrous aluminum oxide, AlO(OH), found in bauxite, corundum, and dolomite and used as a refractory and abrasive.2. Botany See disseminule. FinancialSeeDiaspora
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