český název | anglický název | vzorec | tvrdost | hustota![]() |
kryst. soustava | |
---|---|---|---|---|---|---|
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Salmiak | Sal-Amoniac | NH4Cl | 1.0 - 2.0 | 1.5 | krychlová |
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Tinkal | Tincalconite | Na2[B4O5(OH)4].8H2O | 2.0 - 2.5 | 1.7 - 1.8 | jednoklonná |
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Borax | Borax | Na2[B4O5(OH)4]*8H2O | 2.0 - 2.5 | 1.7 - 1.8 | jednoklonná |
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Gaylussit | Gaylussite | Na2Ca(CO3)2.5H2O | 2.0 - 3.0 | 1.9 | jednoklonná |
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Chabazit | Chabazite | (Ca,Na2)[Al2Si4O12].6H2O | 4.0 - 5.0 | 2.0 - 2.1 | trigonální |
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Grafit | Graphite | C | 1.0 - 2.0 | 2.0 - 2.2 | šesterečná |
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Stilbit | Stilbite | Ca[Al2Si7O18].7H2O | 3.5 - 4.0 | 2.1 - 2.2 | jednoklonná |
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Halit | Halite | NaCl | 2.0 | 2.1 - 2.2 | krychlová |
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Phillipsit | Phillipsite | KCa[Al3Si5O16].6H2O | 4.0 - 4.5 | 2.1 - 2.2 | jednoklonná |
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Heulandit | Heulandite | Ca[Al2Si7O18].6H2O | 3.5 - 4.0 | 2.1 - 2.2 | jednoklonná |
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Whewellit | Whewellite | Ca[C2O4].H2O | 2.5 | 2.2 | jednoklonná |
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Hydromagnezit | Hydromagnesite | Mg5[OH|(CO3)2]2.4H2O | 3.5 | 2.2 | jednoklonná |
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Palygorskit | Palygorskite | (Mg,Al)2[OH|Si4O10].4H2O | 1.0 - 2.0 | 2.1 - 2.3 | jednoklonná |
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Opál | Opal | SiO2.nH2O | 5.5 - 6.5 | 1.9 - 2.5 | amorfní |
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Akantit | Acanthite | Ag2S | 7.0 - 7.4 | 2.0 - 2.5 | jednoklonná |