Grennaite
A rock subtype
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Name:
Named after Gränna, Norra Kärr complex, Sweden.
A variety of agpaitic nepheline-syenite with phenocrysts of catapleiite and/or eudialyte in a fine-grained groundmass rich in aegirine and showing gneissose textures. The rock is most probably a deformed and partly recrystallized lujavrite.
Unique Identifiers
Mindat ID:
51869
Long-form identifier:
mindat:1:1:51869:3
GUID
(UUID V4):
(UUID V4):
ec11e956-bd72-476e-8287-b4db13192b96
Classification of Grennaite
Mineralogy of Grennaite
Essential minerals - these are minerals that are required within the classification of this rock:
| Catapleiite | Na2Zr(Si3O9) · 2H2O |
| Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Pyroxene > Clinopyroxene > Aegirine | NaFe3+Si2O6 |
Synonyms of Grennaite
Internet Links for Grennaite
mindat.org URL:
https://www.mindat.org/min-51869.html
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References for Grennaite
