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Segnitite from
Kremikovtsi mine, Kremikovtsi, Stolichna Municipality, Sofia City Province, Bulgaria


Locality type:Open-Cast Mine
Classification
Species:Segnitite
Formula:PbFe33+AsO4(AsO3OH)(OH)6
Chemical Analyses:
Oxide wt%:
1
PbO28.13 %
ZnO0.21 %
Fe2O332.04 %
As2O528.83 %
SO30.86 %
H2O calc7.94 %
Total:98.01 %
Sample references:
1 -
Petrov, P.M. and Pekov, I.V. (xxxx) Segnitite from Kremikovtsi Mine
Comments:Discovered in October 2009, in the barite ore body (NE part of the open pit), level 508 of the Kremikovtsi deposit.
Habit:individual rhombohedra; rosette-type isometric aggregates with short-rhombohedral crystals; isometric aggregates with long-prismatic crystals ending with sharp rhombohedron; open-work or flattened aggregates of long-prismatic crystals. Hexagonal prism, sharp rhombohedra (positive and negative) and pinacoid faces are developed in all the aggregates. One can observe sectorial zonal growth with clearly different morphology on the faces of the positive and negative rhombohedra under high magnification. The crystal size varies from 0.1 to 5 mm, among the biggest in the world for this mineral. The size of the aggregates varies from 1–2 to 5–10 mm, sometimes the mineral forms crusts, several millimeters thick.
Colour:yellowish green to dark oily green
Abundance at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Ion Microprobe
Data
Mineral Data:Click here to view Segnitite data
Locality Data:Click here to view Kremikovtsi mine, Kremikovtsi, Stolichna Municipality, Sofia City Province, Bulgaria
Data Identifiers
Mindat Occurrence Record ID:959805
Long-form Identifier:1:3:959805:8
GUID (UUID V4):94bedead-a81d-4d8c-ac6e-97472c135e2a
References
Petrov, P.M. and Pekov, I.V. (xxxx) Segnitite from Kremikovtsi Mine – a New Mineral for Bulgaria, 197-205. Sofia Initiative Preservation of Mineral Diversity.
Reference Search (possible matching items)
Chukanov, Nikita V. (2014) Infrared spectra of mineral species Vol. 1 - Springer Geochemistry/Mineralogy. Springer Netherlands. doi:10.1007/978-94-007-7128-4
Book (volume)
Lavrion, Greece (6) and Cu-poor adamite from Ojuela mine, Mexico (7) IR spectra of acid salts (silicates...Ca2B4O4(OH)7Cl·7H2O Locality: Salar de Carcote deposit, El Loa province, Antofagasta, Chile. Description: Colourless crystal...borax deposit, Salar del Hombre Muerto, Salta province, Argentina (type locality). Description: Colourless...Arsenato-Borates Sussexite 29 Mn2+BO2(OH) Locality: Gonzen mine, Sargans, St. Gallen, Switzerland. Description:...District, Vakinankaratra Region, Antananarivo Province, Madagascar. Description: Grey grains from the
Bernard, Jan, Hyršl, Jaroslav (2004) Minerals and their Localities (1st ed.) Granit, Prague.
Book (edition)
ZhiJandy, Kazakhstan, G Galena, 45 mm, Madan, Bulgaria, G SphaJerite. xx 12 mm, Morococha, Peru, H Gypsum...Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...the revolution in 1997. Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga...Katanga administrative region again. The former Kivu province is now divided to three regions: INTRODUCTION
 
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