Pulaskite
A rock subtype
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A variety of nepheline-bearing-alkali-feldspar-syenite containing alkali feldspar and varying amounts of sodic pyroxenes and amphiboles, fayalite, biotite and minor amounts of nepheline.
Unique Identifiers
Mindat ID:
50521
Long-form identifier:
mindat:1:1:50521:9
GUID
(UUID V4):
(UUID V4):
404f1863-fdb0-4b55-a051-7ad826d4d091
Classification of Pulaskite
Mineralogy of Pulaskite
Essential minerals - these are minerals that are required within the classification of this rock:
Alkali pyroxene | A petrological name for the sodium-rich pyroxenes aegirine and aegirine-augite. |
Amphibole | (Na, K, â—»)(Ca,Na)2(Mg,Fe,Al)5((Si,Al)8O22)(OH,F,Cl,O)2 |
Feldspar > Alkali Feldspar | A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. |
Feldspathoid > Nepheline | Na3K(Al4Si4O16) |
Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Olivine > Fayalite | Fe2+2SiO4 |
Internet Links for Pulaskite
mindat.org URL:
https://www.mindat.org/min-50521.html
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References for Pulaskite
Reference List: