Korund
| Korund | |
|---|---|
 |
|
| Općenito | |
| Kategorija | mineral |
| Kemijska formula | aluminijev oksid, Al2O3 |
| Identifikacija | |
| Boja | smeđa do siva, rjeđe crvena, plava, bijela ili žuta |
| Mohsova tvrdoća | 9 |
| Ogreb | bijel |
| Gustoća | 3,95 - 4,1 |
| Taljivost | netaljiv |
| Topljivost | netopiv |
Korund (šmirgl) je vrsta minerala, kristalni oblik aluminijevog oksida Al2O3. Na Mohsovoj skali se nalazi pod brojem 9 što znači da je na toj skali drugi najtvrđi mineral poslije dijamanta.
Povezani članci
- Rubin - crveni korund
- Safir - plavi korund
Članak Korund koji govori o geologiji je mrva: začetak enciklopedijskog članka. Dopunite ga prema pravilima uređivanja Wikipedije.
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