abernathyite vs tsumebite

abernathyite (mineral) | tsumebite (mineral)

Images

| abernathyite | tsumebite alternate names | (none) | preslite formula | K(UO_2)(AsO_4)·4(H_2O) | Pb_2Cu(PO_4)(SO_4)(OH) discovery year | | 1912

| abernathyite | tsumebite density | 3.44 g/cm^3 | 6.22 g/cm^3 transparency | transparent | transparent birefringence | 0.0325 | 0.071 luster | vitreous | adamantine | vitreous Mohs hardness | 5/2 | 3.5 tenacity | | brittle streak | yellow | green magnetism | nonmagnetic | nonmagnetic color | yellow | emerald green fracture | brittle | brittle | uneven molar mass | 520.1 g/mol | 686 g/mol

| abernathyite | tsumebite Strunz ID | VII/E.02-150 | VII/B.24-50 Dana ID | 40.2a.9.1 | 43.4.2.1 ICSD number | ICSD15481 | ICSD76613

| abernathyite | tsumebite crystal system | tetragonal | monoclinic crystal class | 4/m2/m2/m | 2/m unit cell volume | 466.8 Å^3 (cubic ångströms) | 366.4 Å^3 (cubic ångströms) d-spacing | 9.14 Å (ångströms) | 3.34 Å (ångströms) | 3.84 Å (ångströms) | 3.24 Å (ångströms) | 2.9 Å (ångströms) | 2.27 Å (ångströms) | 2.72 Å (ångströms) | 2.94 Å (ångströms) | 4.7 Å (ångströms) | 3.92 Å (ångströms) intensity | 100% | 80% | 80% | 100% | 70% | 40% | 40% | 40% | 30% | 20% molecules per unit cell | 2 molecules per cell | 2 molecules per cell 2V angle | π/36 radians≈5° (degrees) | 89 π/180 radians≈89° (degrees) refractive indices | 0 | 0 | 0 | 0 | 1.57 | 0 | 1.885 | 0 | 0 | 0 | 0 | 0 dispersion | | r < v | strong unit cell lengths | 7.17 Å (ångströms) | 7.17 Å (ångströms) | 9.08 Å (ångströms) | 8.69 Å (ångströms) | 5.78 Å (ångströms) | 7.86 Å (ångströms) unit cell angles | 90° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees) | 111.9° (degrees) | 90° (degrees)

Abernathyite is a mineral with formula K(UO_2)(AsO_4)·3H_2O. The mineral is named after Jesse Evrett Abernathy (1913-1963) who first noted it in 1953 in the U.S. State of Utah. It was described as a new mineral species in 1956. Abernathyite is yellow and occurs as small crystals.