Input interpretation
ferrotantalite (mineral) | loveringite (mineral)
Images
Images
General properties
| ferrotantalite | loveringite alternate names | tantalite | tantalite-Fe | tantalite-iron | (none) formula | Fe^(2+)Ta_2O_6 | (Ca, Ce)(Ti, Fe^(3+), Cr, Mg)_21O_38 discovery year | | 1978
Basic properties
| ferrotantalite | loveringite density | 8.2 g/cm^3 | 4.41 g/cm^3 transparency | opaque | opaque birefringence | 0.17 | luster | submetallic | metallic | submetallic Mohs hardness | 6.25 | 7.5 streak | black brown | grayish black magnetism | nonmagnetic | nonmagnetic color | brownish black | black | black fracture | brittle | conchoidal | molar mass | 513.7 g/mol | 1678 g/mol
Units
Mineral identifiers
| ferrotantalite | loveringite Strunz ID | IV/D.18-50 | IV/C.09-30 Dana ID | 8.3.2.1 | 8.5.1.2 IMA number | | IMA1977-023
Crystallographic properties
| ferrotantalite | loveringite crystal system | orthorhombic | trigonal crystal class | 2/m2/m2/m | 3 unit cell volume | 414.5 Å^3 (cubic ångströms) | 1913 Å^3 (cubic ångströms) d-spacing | 2.96 Å (ångströms) | 3.66 Å (ångströms) | 1.721 Å (ångströms) | 2.866 Å (ångströms) | 3.383 Å (ångströms) | 2.831 Å (ångströms) intensity | 100% | 50% | 20% | 100% | 75% | 72% molecules per unit cell | 4 molecules per cell | 3 molecules per cell refractive indices | 2.26 | 2.35 | 2.43 | 0 | 0 | 0 | unit cell lengths | 5.73 Å (ångströms) | 14.24 Å (ångströms) | 5.08 Å (ångströms) | 10.34 Å (ångströms) | 20.68 Å (ångströms) | 20.68 Å (ångströms) unit cell angles | 90° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees) | 120° (degrees)