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Roselite is a rare arsenate mineral with chemical formula: Ca2(Co,Mg)2·H2O. It was first described in 1825 for an occurrence in the Rappold mines of Schneeberg, Saxony, Germany and named by Armand Lévy after German mineralogist Gustav Rose. It occurs in cobalt-bearing hydrothermal environments and was associated with veins of quartz and chalcedony in the…
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rose pleochroism varieties dark light pale paler germany chemical arsenate formula ca2 mg aso4 h2o composition palest references palache 1960
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Roselite | 2V angle | Calculated: 68° | 1.00 | infobox |
| Roselite | Category | Arsenate minerals | 1.00 | infobox |
| Roselite | Cleavage | {010} Perfect | 1.00 | infobox |
| Roselite | Color | Dark rose red, pink | 1.00 | infobox |
| Roselite | Crystal class | Prismatic (2/m) (same H-M symbol) | 1.00 | infobox |
| Roselite | Crystal habit | Elongated crystals and spherical aggregates and druses | 1.00 | infobox |
| Roselite | Crystal system | Monoclinic | 1.00 | infobox |
| Roselite | Formula | Ca2(Co2+, Mg)[AsO4]2·H2O+ | 1.00 | infobox |
| Roselite | IMA symbol | Rsl | 1.00 | infobox |
| Roselite | Luster | Vitreous | 1.00 | infobox |
| Roselite | Mohs scale hardness | 3.5 | 1.00 | infobox |
| Roselite | Optical properties | Biaxial (−) | 1.00 | infobox |
| Roselite | Pleochroism | (Dark rose) X: Dark rose, Y: Pale rose, Z: Paler rose (Light rose) X: Pale rose, Y: Paler rose, Z: Palest rose | 1.00 | infobox |
| Roselite | Refractive index | nα = 1.725 nβ = 1.728 nγ = 1.735 | 1.00 | infobox |
| Roselite | Space group | P21/c | 1.00 | infobox |
| Roselite | Specific gravity | 3.69 | 1.00 | infobox |
| Roselite | Streak | Light red | 1.00 | infobox |
| Roselite | Strunz classification | 8.CG.10 | 1.00 | infobox |
| Roselite | Twinning | Common as composition plane, contact twins and fourlings | 1.00 | infobox |
| Roselite | Unit cell | a = 5.801 Å, b = 12.898 Å c = 5.617 Å; β = 107.42°; Z = 2 | 1.00 | infobox |
| Roselite | is a | rare arsenate mineral with chemical formula | 0.90 | text |
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