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Norsethite from
Kremikovtsi, Sofia City Province, Bulgaria

Classification
Species:Norsethite
Formula:BaMg(CO3)2
Chemical Analyses:
Oxide wt%:
1
BaO53.11 %
MgO11.28 %
MnO4.68 %
Total:69.07 %
Sample references:
SampleReference
1 - Zidarov, N., Petrov, O., Tarassov, M., Damyanov, Z., Tarassova, E., Petkova, V., Kalvachev, Y., and Zlatev, Z. (2009) Mn-rich norsethite from the Kremikovtsi ore deposit, Bulgaria. Neues Jahrbuch für Mineralogie, Abhandlungen 186, 321-331.
Comments:Mn-, Ca-, and Fe-bearing varieties occur.
Habit:complex aggregates built by packets of fine platy crystals flattened on {0001}; sub-parallel aggregates of long prismatic crystals ending with sharp rhombohedra, which have faces c{0001}, m{1010}and a{1120}; clusters of needle prismatic crystals terminated by very sharp rhombohedra; spherulite aggregates with radiate fibrous structure.
Colour:pale yellow
Luminescent properties:weak dark red under UV = 366 nm, more brightly brownish red under UV = 254 nm.
Confirmation
Validity:Believed Valid
References
References:Zidarov, N., Petrov, O., Tarassov, M., Damyanov, Z., Tarassova, E., Petkova, V., Kalvachev, Y., and Zlatev, Z. (2009) Mn-rich norsethite from the Kremikovtsi ore deposit, Bulgaria. Neues Jahrbuch für Mineralogie, Abhandlungen 186(3), 321-331.
Data
Mineral Data:Click here to view Norsethite data
Locality Data:Click here to view Kremikovtsi, Sofia City Province, Bulgaria
Photo GalleryView Gallery (7 photos)
 
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