Brandbergite
A rock subtype
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A local name for a peralkaline alkali-feldspar-granite containing biotite and small amounts of arfvedsonite.
Named for the Brandberg intrusion/complex in Namibia.
Named for the Brandberg intrusion/complex in Namibia.
Unique Identifiers
Mindat ID:
51009
Long-form identifier:
mindat:1:1:51009:9
GUID
(UUID V4):
(UUID V4):
e2ccf9c0-830d-4257-984b-07368d570869
Classification of Brandbergite
Rocks in section 2 of the QAPF diagram.
Mineralogy of Brandbergite
Essential minerals - these are minerals that are required within the classification of this rock:
Amphibole > Arfvedsonite | [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 |
Feldspar > Alkali Feldspar | A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. |
Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Silica > Quartz | SiO2 |
Pronunciation of Brandbergite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon & Katya Ralph | United Kingdom |
Internet Links for Brandbergite
mindat.org URL:
https://www.mindat.org/min-51009.html
Please feel free to link to this page.
Please feel free to link to this page.