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Epidot (Haüy, 1801), chemický vzorec Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) (křemičitan hlinito-vápenato-železitý), je jednoklonný minerál ze skupiny sorosilikátů. Společně s klinozoisitem tvoří plynulou řadu. Název pochází z řeckého épídosis = přídavek, podle protažení krystalu v jednom směru podél základny hranolu.
Parageneze, Naleziště & Vlastnosti
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al minerál vlastnosti ca2al2 fe3 sio4 si2o7 oh vryp chemický vzorec krystalu minerály facie fe archivováno barva žlutozelená agregáty tvrdost
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Epidot | Barva | zelená, černozelená, žlutozelená, žlutá, černá | 1.00 | infobox |
| Epidot | Chemický vzorec | Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) | 1.00 | infobox |
| Epidot | Hustota | 3,38–3,49 g ⋅ cm−3 | 1.00 | infobox |
| Epidot | Index lomu | nα = 1,715–1,751 nβ = 1,725–1,784 nγ = 1,734–1,797 | 1.00 | infobox |
| Epidot | Kategorie | minerál | 1.00 | infobox |
| Epidot | Lesk | skelný lesk | 1.00 | infobox |
| Epidot | Rozpustnost | v kyselinách nerozpustný | 1.00 | infobox |
| Epidot | Soustava | jednoklonná | 1.00 | infobox |
| Epidot | Tvrdost | 6–7 | 1.00 | infobox |
| Epidot | Vryp | šedý, bílý | 1.00 | infobox |
| Epidot | Vzhled krystalu | zrnité agregáty, protažená zrna | 1.00 | infobox |
| Epidot | Štěpnost | velmi dobrá | 1.00 | infobox |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
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