- subhedral
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/sub hee"dreuhl/, adj. Petrog.(of mineral grains comprising igneous rocks) having a partial or incomplete crystal face or form.[SUB- + -HEDRAL]
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Universalium. 2010.
subhedral
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subhedral — |səb|hēdrəl adjective Etymology: sub + hedral : incompletely bounded by crystal planes : partly faced * * * /sub hee dreuhl/, adj. Petrog. (of mineral grains comprising igneous rocks) having a partial or incomplete crystal face or form. [SUB +… … Useful english dictionary
subhedral — adjective Having some crystal faces and some grainy surfaces; neither entirely euhedral nor entirely anhedral … Wiktionary
subhedral — sub·he·dral … English syllables
igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary … Universalium
Clearcreekite — General Category Carbonate mineral Chemical formula Hg1+3CO3(OH)∙2H2O Strunz classification 05.DC.30 … Wikipedia
Crystal habit — This article is about the descriptive term used in mineralogy. For the addictive drug, see crystal methamphetamine. Pyrite sun (or dollar) in laminated shale matrix. Between tightly spaced layers of shale, the aggregate was forced to grow in a… … Wikipedia
Rock microstructure — includes the texture of a rock and the small scale rock structures. The words texture and microstructure are interchangeable, with the latter preferred in modern geological literature. However, texture is still acceptable because it is a useful… … Wikipedia
Monzogranite — Monzogranites (MGr) are biotite granite rocks that are considered to be the final fractionation product of magma. Monzogranites are characteristically felsic (SiO2 > 73%, and FeO + MgO + TiO2 < 2.4), weakly peraluminous (Al2O3/ (CaO + Na2O… … Wikipedia
Pyrochlore — Infobox mineral name = Pyrochlore category = Oxide mineral boxwidth = boxbgcolor = caption = formula = (Na,Ca)2Nb2O6(OH,F) molweight = color = Brown, yellow brown, reddish brown, orange, black habit = disseminated granular subhedral system =… … Wikipedia
Sphalerite — Zincblende redirects here. For crystal structure, see Zincblende (crystal structure). Sphalerite Sphalerite on dolomite from the Tri State District, Jasper County, Missouri, USA General … Wikipedia
