Xonotlite
Ca6Si6O17(OH)2IMA symbol: Xongrandfathered
Xonotlite is a silicate mineral with the formula Ca6Si6O17(OH)2, crystallizing in the monoclinic system. It has a calculated density of 2.693 g/cm3.
Crystallography
| Crystal system | monoclinic crystal systemWikidata (CC0) |
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| Space group | A 1 2/a 1 |
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| Cell (Å, °) | a = 17.032, b = 7.363, c = 14.023; α = 90, β = 90.36, γ = 90 |
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| Cell volume | 1758.54 ų, Z = 4 |
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| Axial ratios | 2.3132:1:1.9045calculated from COD 9008437 |
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| Source structure | COD 9008437 (Zeitschrift fur Kristallographie, 2001) — 1 of 4 structures |
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Powder X-ray diffraction (calculated)
| d (Å) | 3.089 | 2.83 | 3.249 | 4.258 | 2.698 | 1.947 |
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| I/I₀ | 100 | 50.7 | 49.1 | 40.4 | 39.5 | 37.1 |
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xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9008437; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 2.693 g/cm³calculated from COD 9008437 |
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Chemistry (calculated)
| Molecular weight | 714.99 g/molcalculated from the IMA formula |
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| Composition (wt%) | Ca 33.63%, Si 23.57%, O 42.52%, H 0.28% |
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Classification
| Nickel-Strunz (10th) | 9.DG.35Wikidata (CC0) |
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| Nickel-Strunz (9th) | 9.DG.35Wikidata (CC0) |
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| Dana (8th) | 66.3.1.1Wikidata (CC0) |
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