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Lawsoniet
| Lawsoniet | |
|---|---|
| |
| Bouskis: gloukofaan (donker) en lawsoniet (lig) | |
| Formule | CaAl2(Si2O7)(OH)2.2H2O |
| Nickel-Strunz (10) | 9.BE.05 |
| Kleur | kleurloos, wit, grysblou, ligblou[1] |
| Streep | wit[1] |
| Glans | wasagtig, glasagtig [1] |
| Hardheid | 7,5 (Mohs)[1] |
| Digtheid | 3,1 g/cm3[1] |
| Optiese eienskappe | |
| Dubbelbreking | tweeassig (+)[1] |
| RI-waardes | n = 1.665; n = 1.674(2); n = 1.685(1);[1] |
| Kristallografie | |
| Kristalsisteem | ortorombies |
| Ruimtegroep | Cmcm |
| Nommer | 63 |
| Eenheidsel | a = 584,7 pm, b = 879 pm, c = 1313,8 [1] |
| * Lys van minerale | |
Portaal  Geologie
| |
Lawsoniet is 'n mineraal. Dis 'n kalsiumaluminiumsilikaat met algemene formule CaAl2(Si2O7)(OH)2.2H2O.
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