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Oxy-schorl from
Zlatá Idka, Košice, Košice Region, Slovakia

Classification
Species:Oxy-schorl
Formula:Na(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
Comments:Zlatá Idka is type locality for oxy-schorl(see Bačík et al. 2011).
Habit:fan-shaped aggregates acicular crystals ranging up to 2 cm in size, forming aggregates up to 3.5 cm thick
Colour:dark green; Greenish black
Luminescent properties:no
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Extremely Rare
Confirmation
Validity:Valid - Type Locality
References
References:Bačík P., Cempírek J., Uher P., Ozdín D., Filip J., Novák M., Škoda R., Breiter K., Klementová M., Ďud’a R. (2011): Oxy-schorl, IMA 2011-011. CNMNC Newsletter No. 10, Mineralogical Magazine 75, 5, 2549-2561.; Bačík, P., Cempírek, J., Uher, P., Ozdín D., Filip, J., Novák, M., Škoda, R., Breiter, K., Klementová, M., Ďud’a, R. (2013): Oxy-schorl, Na(Fe2+2Al)Al6+Si6+O18(BO3)3(OH)3O, a new mineral from Zlatá Idka, Slovak Republic and Přibyslavice, Czech Republic. American Mineralogist, 98, 485-492.
Data
Mineral Data:Click here to view Oxy-schorl data
Locality Data:Click here to view Zlatá Idka, Košice, Košice Region, Slovakia
 
Mineral and/or Locality  
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