Hedenbergite
CaFe2+Si2O6IMA symbol: Hdapproved
Hedenbergite is a silicate mineral with the formula CaFe2+Si2O6, crystallizing in the monoclinic system. It has a calculated density of 3.804 g/cm3.
Crystallography
| Crystal system | monoclinic crystal systemWikidata (CC0) |
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| Space group | C 1 2/c 1 |
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| Cell (Å, °) | a = 9.793, b = 9.078, c = 5.238; α = 90, β = 106.27, γ = 90 |
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| Cell volume | 447.014 ų, Z = 4 |
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| Axial ratios | 1.0788:1:0.5770calculated from COD 9016926 |
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| Source structure | COD 9016926 (American Mineralogist, 2013) — 1 of 48 structures |
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Powder X-ray diffraction (calculated)
| d (Å) | 3.02 | 2.597 | 2.962 | 2.523 | 2.514 | 2.156 |
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| I/I₀ | 100 | 53.8 | 45.7 | 45.4 | 45.2 | 33.8 |
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xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9016926; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 3.804 g/cm³calculated from COD 9016926 |
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Classification
| Nickel-Strunz (10th) | 9.DA.15Wikidata (CC0) |
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| Nickel-Strunz (9th) | 9.DA.15Wikidata (CC0) |
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| Dana (8th) | 65.1.3a.2Wikidata (CC0) |
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