Smarag is a edelsteen en 'n verskeidenheid van die beril mineraal (Be3Al2(SiO3)6) wat groen gekleur word deur klein hoeveelhede van chroom of soms vanadium.
Smarag | |
---|---|
Formule | Be3Al2(SiO3)6 |
Kleur | groen |
Kristalsisteem | Seskantig |
Eenheidsel | a = 9.21 Å, c = 9.19 Å; Z = 2 |
* Lys van minerale | |
Portaal Geologie |
Beryl het 'n hardheid van 7,5–8 op die Mohs-skaal. Die meeste smaragde is hoogs ingesluit, dus word hul duursaamheid (weerstand teen breek) as algemeen swak geklassifiseer. Smarag is 'n siklosilikaat.
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