剛玉
{{Infobox mineral | name = 剛玉 | category = 氧化物 | boxwidth = | boxbgcolor = #dacf69 | boxtextcolor = #000000 | image = Several corundum crystals.jpg | imagesize = 150 | caption = | formula = 氧化鋁 - Al2O3 | IMAsymbol = Crn …
标签：#赤铁矿族
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赤铁矿
{{Infobox mineral | name = 赤铁矿 | category = 氧化物矿物 | image = WLA hmns Hematite.jpg | imagesize = 260 | caption = 巴西三方晶系赤铁矿晶体 | formula = Fe2O3，α-Fe2O3 | IMAsymbol = Hem | strunz = 4.CB.05 | dana = 4.3.1.2 | symmetry = Rc …