Akimotoite
MgSiO3IMA symbol: Akiapproved
Akimotoite is an oxide or hydroxide mineral with the formula MgSiO3, crystallizing in the trigonal system. It has a calculated density of 3.81 g/cm3.
Crystallography
| Crystal system | trigonal crystal systemWikidata (CC0) |
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| Space group | R -3 :H |
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| Cell (Å, °) | a = 4.7284, b = 4.7284, c = 13.5591; α = 90, β = 90, γ = 120 |
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| Cell volume | 262.537 ų, Z = 6 |
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| Axial ratios | 1.0000:1:2.8676calculated from COD 9000851 |
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| Source structure | COD 9000851 (American Mineralogist, 1982) |
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Powder X-ray diffraction (calculated)
| d (Å) | 1.634 | 2.611 | 2.095 | 3.505 | 1.365 | 2.364 |
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| I/I₀ | 100 | 92.6 | 85.2 | 70.5 | 52.4 | 43.9 |
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xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9000851; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 3.81 g/cm³calculated from COD 9000851 |
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Chemistry (calculated)
| Molecular weight | 100.39 g/molcalculated from the IMA formula |
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| Composition (wt%) | Mg 24.21%, Si 27.98%, O 47.81% |
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Classification
| Nickel-Strunz (10th) | 4.CB.05Wikidata (CC0) |
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| Nickel-Strunz (9th) | 9.DA.05Wikidata (CC0) |
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