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Almandine from
Kesandere valley eclogites, Bitlis Province, Turkey


Locality type:Outcrop
Classification
Species:Almandine
Formula:Fe32+Al2(SiO4)3
Formation:Primary
Age information
Maximum recorded age:82.4 ± 0.9 Ma
Minimum recorded age: Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
182.4 ± 0.9 to MaLate/Upper CretaceousVAN 98- 98-1-11U-Pb from zircon
Chemical Analyses:
Oxide wt%:
1
SiO239.06 %
TiO20.01 %
Cr2O30.02 %
Al2O322.06 %
Fe2O30.33 %
FeO23.23 %
MnO0.11 %
MgO7.23 %
NiO0.00 %
CaO8.31 %
Total:100.36 %
Sample references:
1VAN 98- 98-1-11
Oberhänsli, R., Koralay, E., Candan, O., Pourteau, A., Bousquet, R. (2013) Late Cretaceous eclogitic high-pressure relics in the Bitlis Massif. Geodinamica Acta, 26 (3) 175-190 doi:10.1080/09853111.2013.858951
Comments:Primary and essential constituent of fine grained eclogite. Almandine crystal size appears to be around 3mm. The garnets are often partly retrograded with symplectitic domains and keliphitic biotite or biotite/amphibole coronas.
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Abundance at site:Extremely common
Confirmation
Validity:Confirmed
Confirmation Methods:EPMA
Confirmation Details:Where Tested and Reference ID: VAN 98- 98-1-11
Data
Mineral Data:Click here to view Almandine data
Locality Data:Click here to view Kesandere valley eclogites, Bitlis Province, Turkey
Data Identifiers
Mindat Occurrence Record ID:1744131
Long-form Identifier:1:3:1744131:1
GUID (UUID V4):0
References
Oberhänsli, R., Koralay, E., Candan, O., Pourteau, A., Bousquet, R. (2013) Late Cretaceous eclogitic high-pressure relics in the Bitlis Massif. Geodinamica Acta, 26 (3) 175-190 doi:10.1080/09853111.2013.858951
 
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