HOME
 |
Hilairite (Na2ZrSi3O9·3H2O) J02851 |
 |
 | ||
| Crystal system | hexagonal. |
| Habit | short to elongated trigonal or hexagonal prisms terminated with a rhombohedron; commonly twinned. |
| Cleavage | none. |
| Fracture | conchoidal to uneven. |
| Hardness | 4 |
| Specific Gravity | 2.7 |
| Color | pale to dark brown or pink to rose colored. |
| Luster | vitreous to waxy and is transparent. |
| Streak | |
| Distinguishing features | being colorless in small samples, having a hardness of 4 and being only slightly reactive to HCl acid is characteristic. |
| Uses | of interest to collectors and researchers. |
CrystalChemicalGravityColorSpeciesCatalogOther species samples