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Analcime-syenite

A rock classification type
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A variety of foid-syenite where analcime is the most abundant foid.


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Unique IdentifiersHide

Mindat ID:
50576
Long-form identifier:
mindat:1:1:50576:9

Classification of Analcime-syeniteHide

QAPF_P_11.png

Foid-syenite is in section 11 of the QAPF diagram.

Mineralogy of Analcime-syeniteHide

Essential minerals - these are minerals that are required within the classification of this rock:
AnalcimeNa(AlSi2O6) · H2O
Feldspar > Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > HornblendeAnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Internet Links for Analcime-syeniteHide

References for Analcime-syeniteHide

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