词条 | Fiorite |
释义 |
| name = Fiorite | boxwidth = | boxbgcolor = | image = | imagesize = | alt = | caption = | category = Mineraloid | formula = SiO2·nH2O | strunz = | dana = | symmetry = | unit cell = | molweight = | color = | colour = | habit = | system = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = pearly | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = | var1 = | var1text = | var2 = | var2text = | var3 = | var3text = | var4 = | var4text = | var5 = | var5text = | var6 = | var6text = }}Fiorite is a hydrated silica rock, a form of opal, found in cavities in volcanic tuff. It is a globular, botryoidal or stalactic concretionary form of opal. It has a pearly lustre and forms botryoidal masses. It was named after Santa Fiora, in Italy. It is used as a gemstone.[1] References1. ^Dictionary of Gems and Gemology By Mohsen Manutchehr-Danai, p.182
2 : Opals|Industrial minerals |
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