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hornblende::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | amphibole |
Examples of hornblende
hornblende
It is typified by a schistose texture and visible crystals of black or dark green hornblende.
From the en.wikipedia.org
Hornblende is an important constituent of many igneous rocks.
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Near Vale Castle the rock is of a type called bojite with interlocking hornblende and plagioclase crystals.
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The volcanic rocks present from the prior eruptions feature olivine and have a notably small presence of hornblende.
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Around Mount Job, porphyritic hornblende, biotite and quartz rhyodacite lava flows of the Job Assemblage were erupted.
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Hornblende-dacite lava erupted with small masses of tephra, which had been degassed shortly before the eruption.
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Augite, biotite, plagioclase and hornblende occur as microphenocrysts and comprise 1% to 7% of the andesite.
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Plagioclase, hornblende and augite are mostly in form as phenocrysts and comprise 1% to 10% of the andesite.
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The colour is pale grey with mineral white feldspar, milky grey quartz, black biotite, and with hornblende rich xenoliths.
From the en.wikipedia.org
- A green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron
- Hornblende is a complex inosilicate series of minerals (ferrohornblende - magnesiohornblende). Hornblende 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. ...
- A common member of the amphibole rock-forming minerals; usually black, dark green, or brown and found in igneous and metamorphic rocks.
- A rock forming amphibole group mineral which forms part of the mafic component of igneous rocks.
- A group of minerals including calcium, iron, magnesium, and aluminum silicates.
- A member of a group of minerals called the amphiboles; a component of granite that has long, needlelike crystals. (TG)
