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Vesuvianite, also known as idocrase, is a green, brown, yellow, or blue silicate mineral. Vesuvianite occurs as tetragonal crystals in skarn deposits and limestones that have been subjected to contact metamorphism. It was first discovered within included blocks or adjacent to lavas on Mount Vesuvius, hence its name. Attractive-looking crystals are…
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crystals also known idocrase vesuvius name sometimes variety brown blue fine tetragonal mineral blocks mount used sorosilicate green yellow specific
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Vesuvianite | Birefringence | 0.004–0.006 | 1.00 | infobox |
| Vesuvianite | Category | Sorosilicate | 1.00 | infobox |
| Vesuvianite | Cleavage | Poor on {110} and {100} very poor on {001} | 1.00 | infobox |
| Vesuvianite | Color | Yellow, green, brown; colorless to white, brown-black, light green, emerald green, violet, blue-green to blue, pink, purple, red, black, commonly zoned | 1.00 | infobox |
| Vesuvianite | Crystal class | Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m) | 1.00 | infobox |
| Vesuvianite | Crystal habit | Short pyramidal to long prismatic crystals common, massive to columnar | 1.00 | infobox |
| Vesuvianite | Crystal system | Tetragonal | 1.00 | infobox |
| Vesuvianite | Diaphaneity | Subtransparent to translucent | 1.00 | infobox |
| Vesuvianite | Formula | Ca10(Mg, Fe)2Al4(SiO4)5(Si2O7)2(OH,F)4 | 1.00 | infobox |
| Vesuvianite | Fracture | Sub conchoidal to irregular | 1.00 | infobox |
| Vesuvianite | IMA symbol | Ves | 1.00 | infobox |
| Vesuvianite | Luster | Vitreous to resinous | 1.00 | infobox |
| Vesuvianite | Mohs scale hardness | 6–7 | 1.00 | infobox |
| Vesuvianite | Optical properties | Uniaxial (−) | 1.00 | infobox |
| Vesuvianite | Other characteristics | striated lengthwise | 1.00 | infobox |
| Vesuvianite | Pleochroism | slight in colored varieties | 1.00 | infobox |
| Vesuvianite | Refractive index | nω = 1.703–1.752 nε = 1.700–1.746 | 1.00 | infobox |
| Vesuvianite | Solubility | Vesuvianite is virtually insoluble in acids | 1.00 | infobox |
| Vesuvianite | Space group | P4/nnc | 1.00 | infobox |
| Vesuvianite | Specific gravity | 3.32–3.43 | 1.00 | infobox |
| Vesuvianite | Streak | White | 1.00 | infobox |
| Vesuvianite | Strunz classification | 9.BG.35 | 1.00 | infobox |
| Vesuvianite | Tenacity | Brittle | 1.00 | infobox |
| Vesuvianite | Twinning | Fine twin domains observed | 1.00 | infobox |
| Vesuvianite | Unit cell | a = 15.52 Å, c = 11.82 Å Z = 2 | 1.00 | infobox |
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