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Hercynite from
Obidim eclogite, Bansko Municipality, Blagoevgrad Province, Bulgaria


Locality type:Outcrop
Classification
Species:Hercynite
Formula:Fe2+Al2O4
Chemical Analyses:
Oxide wt%:
1
SiO20.13 %
Al2O362.53 %
Cr2O30.07 %
FeOt26.22 %
MnO0.23 %
MgO9.76 %
CaO0.24 %
Total:99.18 %
Empirical formulas:
1Fe2+0.59Mg0.39Mn0.01 Ca0.01Al1.99O4
Sample references:
1OBI3a
JanÃĄk, M.; Froitzheim, N.; Georgiev, N.; Nagel, T. J.; Sarov, S. (2011) P-T evolution of kyanite eclogite from the Pirin Mountains (SW Bulgaria): implications for the Rhodope UHP Metamorphic Complex. Journal of Metamorphic Geology, 29 (3). 317-332 doi:10.1111/j.1525-1314.2010.00920.x
Comments:All 3 spinel analyses provided by Janek et al. (2011) has Fe>Mg and is therefore hercynite.
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hercynite data
Locality Data:Click here to view Obidim eclogite, Bansko Municipality, Blagoevgrad Province, Bulgaria
Data Identifiers
Mindat Occurrence Record ID:1783214
Long-form Identifier:1:3:1783214:2
GUID (UUID V4):0
Nearest other occurrences of Hercynite
89.4km (55.6 miles) ⓘRuby occurrence, Paranesti, Drama, Eastern Macedonia and Thrace, Greece
References
JanÃĄk, M.; Froitzheim, N.; Georgiev, N.; Nagel, T. J.; Sarov, S. (2011) P-T evolution of kyanite eclogite from the Pirin Mountains (SW Bulgaria): implications for the Rhodope UHP Metamorphic Complex. Journal of Metamorphic Geology, 29 (3). 317-332 doi:10.1111/j.1525-1314.2010.00920.x
 
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