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Hornblende is a complex inosilicate series of minerals. It is not a recognized mineral in its own right, but the name is used as a general or field term, to refer to a dark amphibole. Hornblende minerals are common in igneous and metamorphic rocks.
Compositional variances, Occurrence & Physical properties
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minerals mineral dark series igneous mg fe oh amphibole cleavage rocks general also color formula al si 8o22 inosilicate references
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Hornblende | Category | Silicate mineral | 1.00 | infobox |
| Hornblende | Cleavage | Imperfect at 56° and 124° | 1.00 | infobox |
| Hornblende | Color | Black to dark green or brown | 1.00 | infobox |
| Hornblende | Crystal habit | Hexagonal/granular | 1.00 | infobox |
| Hornblende | Crystal system | Monoclinic | 1.00 | infobox |
| Hornblende | Formula | .mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:l… | 1.00 | infobox |
| Hornblende | Fracture | Uneven | 1.00 | infobox |
| Hornblende | IMA symbol | Hbl | 1.00 | infobox |
| Hornblende | Luster | Vitreous to dull | 1.00 | infobox |
| Hornblende | Mohs scale hardness | 5–6 | 1.00 | infobox |
| Hornblende | Pleochroism | Strong | 1.00 | infobox |
| Hornblende | Space group | C2/m | 1.00 | infobox |
| Hornblende | Specific gravity | 2.9 | 1.00 | infobox |
| Hornblende | Streak | Pale gray, gray-white, white, colorless | 1.00 | infobox |
| Hornblende | is a | complex inosilicate series of minerals | 0.90 | text |
| Hornblende | is a | inosilicate | 0.90 | text |
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