Analcime is a mineral close to zeolites and containing zeolitic water in its composition.
You can see analcime stone for sale and buy it in the Minerals of Russia online store.
General | |
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Category | Zeolite |
Formula (repeating unit) |
NaAlSi2O6·H2O |
IMA symbol | Anl |
Strunz classification | 9.GB.05 |
Crystal system | Orthorhombic |
Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
Space group | Ibca |
Identification | |
Color | White, colorless, gray, pink, greenish, yellowish |
Crystal habit | Typically in crystals, usually trapezohedrons, also massive to granular. |
Twinning | Polysynthetic on [001], [110] |
Cleavage | Very poor [100] |
Fracture | Uneven to subconchoidal |
Mohs scale hardness | 5 - 5.5 |
Luster | Vitreous |
Streak | White |
Specific gravity | 2.24 - 2.29 |
Optical properties | Isotropic; anomalously biaxial (-) |
Refractive index | n = 1.479 - 1.493 |
Fusibility | 3.5 |
Other characteristics | Weakly piezoelectric; weakly electrostatic when rubbed or heated. |