Hornblendite
A rock classification type
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An ultramafic plutonic rock composed almost entirely of hornblende. Now defined modally in the ultramafic rock classification.
Unique Identifiers
Mindat ID:
48402
Long-form identifier:
mindat:1:1:48402:2
Similar Names
| Hornblendite (s.s.) | A rock classification type |
Classification of Hornblendite
Modal classification of ultramafic rocks (after Streckeisen, 1973)
Sub-divisions of Hornblendite
Mineralogy of Hornblendite
Essential minerals - these are minerals that are required within the classification of this rock:
| Amphibole > Hornblende | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
| Pyroxene | A petrological term for Pyroxene Group. |
Pronunciation of Hornblendite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Common Associates
Associations Based on Photo Data:
| 3 photos of Hornblendite associated with 'Amphibolite' | |
| 3 photos of Hornblendite associated with 'Metagabbro' | |
| 3 photos of Hornblendite associated with K Feldspar | |
| 2 photos of Hornblendite associated with Hornblende Root Name Group | ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| 2 photos of Hornblendite associated with 'Fayalite-Forsterite Series' | |
| 2 photos of Hornblendite associated with Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| 2 photos of Hornblendite associated with Clinopyroxene Subgroup | |
| 2 photos of Hornblendite associated with Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| 2 photos of Hornblendite associated with 'Granite' | |
| 1 photo of Hornblendite associated with Feldspar Group |
Internet Links for Hornblendite
mindat.org URL:
https://www.mindat.org/min-48402.html
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