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Linarite is a somewhat rare, crystalline mineral that is known among mineral collectors for its unusually intense, pure blue color. It is formed by the oxidation of galena and chalcopyrite and other copper sulfides. It is a combined copper lead sulfate hydroxide with formula PbCuSO4(OH)2. Linarite occurs as monoclinic prismatic to tabular crystals and…
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copper blue color crystals monoclinic occurs sulfate caledonite malachite formula oh prismatic tabular mohs hardness specific gravity cerussite references mineral
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Linarite | 2V angle | Measured: 80° | 1.00 | infobox |
| Linarite | Birefringence | δ = 0.050 | 1.00 | infobox |
| Linarite | Category | Sulfate minerals | 1.00 | infobox |
| Linarite | Cleavage | Perfect on {100}, imperfect on {001} | 1.00 | infobox |
| Linarite | Color | Deep azure blue | 1.00 | infobox |
| Linarite | Crystal class | Prismatic (2/m) (same H-M symbol) | 1.00 | infobox |
| Linarite | Crystal habit | Crystals elongated and tabular; in crusts and aggregates | 1.00 | infobox |
| Linarite | Crystal system | Monoclinic | 1.00 | infobox |
| Linarite | Diaphaneity | Transparent, translucent | 1.00 | infobox |
| Linarite | Formula | PbCu[(OH)2|SO4] | 1.00 | infobox |
| Linarite | Fracture | Conchoidal | 1.00 | infobox |
| Linarite | IMA symbol | Lna | 1.00 | infobox |
| Linarite | Luster | Sub-adamantine, vitreous | 1.00 | infobox |
| Linarite | Mohs scale hardness | 2.5 | 1.00 | infobox |
| Linarite | Optical properties | Biaxial (−) | 1.00 | infobox |
| Linarite | Pleochroism | X = pale blue; Y = blue; Z = Prussian blue | 1.00 | infobox |
| Linarite | Refractive index | nα = 1.809 nβ = 1.838 nγ = 1.859 | 1.00 | infobox |
| Linarite | Space group | P21/m | 1.00 | infobox |
| Linarite | Specific gravity | 5.3 – 5.5 | 1.00 | infobox |
| Linarite | Streak | Pale blue | 1.00 | infobox |
| Linarite | Strunz classification | 7.BC.65 | 1.00 | infobox |
| Linarite | Twinning | Common on {100}, also on {001} | 1.00 | infobox |
| Linarite | Unit cell | a = 9.701(2), b = 5.65 c = 4.69 [Å]; β = 102.65°; Z = 2 | 1.00 | infobox |
| Linarite | is a | somewhat rare | 0.90 | text |
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