词条 | Zincochromite |
释义 |
| name = Zincochromite | boxwidth = | boxbgcolor = | image = Zincochromite.jpg | imagesize = | alt = | caption = Zincochromite found in Russia | category = Spinel group | formula = ZnCr2O4 | molweight = | strunz = 4.BB.05 | dana = | system = Cubic | class = Hexoctahedral (m{{overline|3}}m) H-M symbol: (4/m {{overline|3}} 2/m) | symmetry = Fd{{overline|3}}m | unit cell = a = 8.32 Å; Z = 8 | color = Brownish black | colour = | habit = Zoned euhedral crystals with hexagonal outline | twinning = | cleavage = | fracture = | tenacity = | mohs = 5.8 | luster = Semimetallic | streak = Brown | diaphaneity = Opaque, translucent in thin slivers | gravity = | density = | polish = | opticalprop = Isotropic | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = Weakly paramagnetic | prop1 = | prop1text = | references = [1][2][3][4] }}Zincochromite is a zinc chromium oxide mineral with the formula ZnCr2O4. It is the zinc analogue of chromite, hence the name. It was first described in 1987 as an occurrence in a uranium deposit near Lake Onega, Russia.[3] It has also been reported from Dolo Hill, New South Wales, Australia, and from the Tarkwa Mine in the Ashanti gold belt of Ghana.[1] References1. ^1 Mindat.org {{oxide-mineral-stub}}2. ^Webmineral data 3. ^1 Handbook of Mineralogy 4. ^[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Zincochromite Mineralienatlas] 4 : Zinc minerals|Chromium minerals|Spinel group|Cubic minerals |
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