Mogánite
SiO2·nH2OIMA symbol: Mogrenamed
Mogánite is an oxide or hydroxide mineral with the formula SiO2·nH2O, crystallizing in the monoclinic system. It has a calculated density of 2.625 g/cm3. Its streak is white.
Photos
Crystallography
| Crystal system | monoclinic crystal systemWikidata (CC0) |
|---|---|
| Space group | I 1 2/a 1 |
| Cell (Å, °) | a = 8.7371, b = 4.8692, c = 10.7217; α = 90, β = 90.193, γ = 90 |
| Cell volume | 456.127 ų, Z = 12 |
| Axial ratios | 1.7944:1:2.2019calculated from COD 9002648 |
| Source structure | COD 9002648 (American Mineralogist, 2001) — 1 of 3 structures |
Powder X-ray diffraction (calculated)
| d (Å) | 3.335 | 3.381 | 3.329 | 3.392 | 4.433 | 4.369 |
|---|---|---|---|---|---|---|
| I/I₀ | 100 | 76.9 | 47.8 | 44.6 | 41.2 | 23.4 |
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9002648; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 2.625 g/cm³calculated from COD 9002648 |
|---|---|
| Streak | whitesingle sourceWikidata (CC0) |
Classification
| Nickel-Strunz (10th) | 4.DA.20Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 4.DA.20Wikidata (CC0) |
| Dana (8th) | 75.1.4.2Wikidata (CC0) |