آنالسیم
آنالسیم (یونانجا: άναλkις – ضعیف، ضعیف الکتریکلشمه خۆصوصیتینه گؤره) — انآ [AlSi2O6]· H2O - کوبیک سینقونیا. راست گلمه تئزلیغی شکالاسی: نادیر
| Analcime | |
|---|---|
 Reddish crystals of analcime up to 1.8 cm in size on matrix | |
| General | |
| Category | Zeolite |
| Formula (repeating unit) | NaAlSi2O6·H2O |
| 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. |
| References | [۱] |