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Greenockite, also cadmium blende or cadmium ochre (obsolete) is a rare cadmium bearing metal sulfide mineral consisting of cadmium sulfide (CdS) in crystalline form. Greenockite crystallizes in the hexagonal system. It occurs as massive encrustations and as hemimorphic six-sided pyramidal crystals which vary in color from a honey yellow through shades of…
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cadmium mineral also yellow sulfide sphalerite hexagonal occurs isostructural temperatures greenock rare cds system encrustations pyramidal crystals color honey red
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Greenockite | Birefringence | δ = 0.023 | 1.00 | infobox |
| Greenockite | Category | Sulfide mineral | 1.00 | infobox |
| Greenockite | Cleavage | Distinct on {1122}, imperfect on {0001} | 1.00 | infobox |
| Greenockite | Color | Honey yellow, citron yellow, orange yellow | 1.00 | infobox |
| Greenockite | Crystal class | Dihexagonal pyramidal (6mm) (same H-M symbol) | 1.00 | infobox |
| Greenockite | Crystal habit | Colloform – forming from a gel or colloidal mass; encrustations – forms crust-like aggregates on matrix; radial – crystals radiate from a center without producing stellar forms… | 1.00 | infobox |
| Greenockite | Crystal system | Hexagonal | 1.00 | infobox |
| Greenockite | Diaphaneity | Nearly opaque to translucent | 1.00 | infobox |
| Greenockite | Formula | CdS | 1.00 | infobox |
| Greenockite | Formula mass | 144.48 | 1.00 | infobox |
| Greenockite | Fracture | Conchoidal | 1.00 | infobox |
| Greenockite | IMA symbol | Gnk | 1.00 | infobox |
| Greenockite | Jmol .mw-parser-output .nobold{font-weight:normal}(3D) | Interactive image | 1.00 | infobox |
| Greenockite | Luster | Adamantine to resinous | 1.00 | infobox |
| Greenockite | Mohs scale hardness | 3.0–3.5 | 1.00 | infobox |
| Greenockite | Optical properties | Uniaxial (−) | 1.00 | infobox |
| Greenockite | Other characteristics | Toxic | 1.00 | infobox |
| Greenockite | Pleochroism | Weak | 1.00 | infobox |
| Greenockite | Refractive index | nω = 2.529 nε = 2.506 | 1.00 | infobox |
| Greenockite | Space group | P63mc | 1.00 | infobox |
| Greenockite | Specific gravity | 4.8–4.9 | 1.00 | infobox |
| Greenockite | Streak | Yellow orange to brick red | 1.00 | infobox |
| Greenockite | Strunz classification | 2.CB.45 | 1.00 | infobox |
| Greenockite | Tenacity | Brittle | 1.00 | infobox |
| Greenockite | Twinning | Rare on {1122} forming trillings | 1.00 | infobox |
| Greenockite | Ultraviolet fluorescence | yellow-orange fluorescence under UV when rich in zinc[citation needed] | 1.00 | infobox |
| Greenockite | Unit cell | a = 4.136 c = 6.713 [Å]; Z = 2 | 1.00 | infobox |
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