Input interpretation
spodumene (mineral) | surkhobite (mineral)
Image
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General properties
| spodumene | surkhobite alternate names | kunzite | alpha-spodumene | hiddenite | triphane | (none) formula | LiAlSi_2O_6 | (Ca, Na)(Ba, K)(Fe^(2+), Mn)_4Ti_2(Si_4O_14)O_2(F, OH, O)_3 discovery year | 1800 |
Basic properties
| spodumene | surkhobite density | 3.15 g/cm^3 | 3.84 g/cm^3 transparency | transparent | translucent | transparent | translucent birefringence | 0.016 | 0.098 luster | vitreous | dull | vitreous Mohs hardness | 6.75 | streak | white | white magnetism | nonmagnetic | nonmagnetic color | grayish white | pink | violet | emerald green | yellow | brownish red fracture | splintery | brittle | uneven molar mass | 186.1 g/mol | 902.4 g/mol
Units
Mineral identifiers
| spodumene | surkhobite Strunz ID | VIII/F.01-120 | VIII/CX.00-00 Dana ID | 65.1.4.1 | 56.2.6b.4 IMA number | | IMA2002-037
Crystallographic properties
| spodumene | surkhobite crystal system | monoclinic | monoclinic crystal class | 2/m | 2 unit cell volume | 389.9 Å^3 (cubic ångströms) | 3074 Å^3 (cubic ångströms) d-spacing | 2.921 Å (ångströms) | 2.793 Å (ångströms) | 4.205 Å (ångströms) | 3.454 Å (ångströms) | 2.592 Å (ångströms) | 2.074 Å (ångströms) | 10.39 Å (ångströms) | 1.728 Å (ångströms) | 2.862 Å (ångströms) | 3.186 Å (ångströms) intensity | 100% | 90% | 75% | 100% | 70% | 40% | 20% | 15% | 15% | 15% molecules per unit cell | 4 molecules per cell | 8 molecules per cell 2V angle | 71 π/180 radians≈71° (degrees) | 43 π/120 radians≈129/2° (degrees) refractive indices | 1.655 | 1.663 | 1.671 | 0 | 0 | 0 | 1.79 | 0 | 0 | 0 | 0 | 0 dispersion | r < v | weak | r < v | strong unit cell lengths | 9.52 Å (ångströms) | 8.32 Å (ångströms) | 5.25 Å (ångströms) | 10.72 Å (ångströms) | 13.84 Å (ångströms) | 20.81 Å (ångströms) unit cell angles | 90° (degrees) | 110.3° (degrees) | 90° (degrees) | 90° (degrees) | 95.09° (degrees) | 90° (degrees)