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Naujaite

A rock subtype
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07396760017271952981994.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
05041110017271952991026.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
01934010017271953002275.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
07396760017271952981994.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
05041110017271952991026.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
01934010017271953002275.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
08374300017271953006971.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
05041110017271952991026.jpg
Naujaite, etc.

Ilímaussaq complex, Kujalleq, Greenland
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About NaujaiteHide

Where sodalite exceeds 50% it is classed as a sodalitolite, otherwise it is a nepheline sodalite-syenite. It is an agpaitic rock characterised by a poikilitic texture.


Unique IdentifiersHide

Mindat ID:
48386
Long-form identifier:
mindat:1:1:48386:5

Similar NamesHide

NaegiteA variety of ZirconZr(SiO4)

Classification of NaujaiteHide

Mineralogy of NaujaiteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Amphibole > ArfvedsoniteNaNa2(Fe2+4Fe3+)Si8O22(OH)2
EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Feldspar > Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
Feldspathoid > NephelineNa3K(Al4Si4O16)
Feldspathoid > SodaliteNa4(Si3Al3)O12Cl
Pyroxene > Clinopyroxene > AegirineNaFe3+Si2O6
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

Chemical AnalysisHide

Oxide wt%:
 1
TiO20.3? %
ZrO20.41 %
Al2O322.30 %
Fe2O33.07 %
FeO2.21 %
MnO0.13 %
MgO0.09 %
CaO1.4 %
Na2O15.76 %
K2O3.58 %
P2O50.03 %
H2O1.46 %
Cl2.86 %
F0.29 %
CO30.16 %
SiO246.85 %
Total:100.9 %
Sample references:
IDLocalityReferenceNotes
1Ilímaussaq complex, Kujalleq, Greenland
Ferguson, John (1970) The differentiation of agpaitic magmas; the Ilimaussaq intrusion, south Greenland. The Canadian Mineralogist, 10 (3). p.335-349.
Average of 7 analyses of naujaite consisting of K‑feldspar/perthite (25.7 vol%), nepheline (9.9 vol%), altered pyroxenes (6.6 vol%), amphiboles (5.6 vol%), aenigmatite(1.7 vol%), eudialyte (4.9 vol%), sodalite (40.2 vol%), analcime (3.6 vol%), natrolite (1.7 vol%), fluorite (0.1 vol%), apatite (tr), others (tr). The analytical method not given, presumably wet chemical.

Common AssociatesHide

Associations Based on Photo Data:
7 photos of Naujaite associated with EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
7 photos of Naujaite associated with SodaliteNa4(Si3Al3)O12Cl
7 photos of Naujaite associated with AegirineNaFe3+Si2O6
7 photos of Naujaite associated with ArfvedsoniteNaNa2(Fe2+4Fe3+)Si8O22(OH)2

Internet Links for NaujaiteHide

References for NaujaiteHide

Reference List:
Quick NavTopAbout NaujaiteUnique IdentifiersSimilar NamesClassification Mineralogy Chemical AnalysisCommon AssociatesInternet Links References
 
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