Cioclovina cave, Hunedoara, Hunedoara Co., Romania

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Lower Cretaceous-aged limestones with guano-derived phosphate sediments mined 1912-1941 (1942?). This is one of three caves in the Tara Hategului plateau near the town of Hunedoara. This plateau has also produced some small dinosaur fossils.

References

- Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1010.
- Onac, B.P., Breban, R., Kearns, J., and Tamas, T. (2002) Unusual minerals related to phosphate deposits in Cioclovina Cave, Şureanu Mts. (Romania). Theoretical and Applied Karstology: 15: 27-34.
- European Journal of Mineralogy (2002): 14: 157-164.
- Onac, B.P., Ettinger, K., Kearns, J., Balasz, I.I. (2005): A modern, guano-related occurrence of foggite, CaAl(PO4)(OH)2·H2O and churchite-(Y), YPO4·2H2O in Cioclovina Cave, Romania. Mineralogy and Petrology, 85, 291-302.
- Onac, B.P., Kearns, J., Breban, R., and Pânzaru, S.C. (2005): Variscite (AlPO4 x 2H2O) from Cioclovina Cave (Sureanu Mountains, Romania): A Tale of a Missing Phosphate. Proceedings of the Annual Scientific Session of The Geological Society of Romania, Rosia Montana, 20-21 May 2005, 93.
- Dumitras, D.-G., Constantinescu, E., Marincea, S., and Bourgier, V. (2005): New Data on Ardealite from the Type Locality (The "Dry" Cioclovina Cave, Sureanu Mountains, Romania). Proceedings of the Annual Scientific Session of The Geological Society of Romania, Rosia Montana, 20-21 May 2005, 31-36.
- American Mineralogist (2005) 90: 1203-1208.
- Onac, B.P., et al. (2006). American Mineralogist: 91: 1927-1931.
- Onac, B.P., and H.S. Effenberger (2007): American Mineralogist 92: 1998-2001.
- Onac, B.P.; Bernhardt, H.-J.; Effenberger, H. (2009): Authigenic burbankite in the Cioclovina Cave sediments (Romania). European Journal of Mineralogy 21, 507-514.
- Onac, BP; Effenberger, HS; Collins, NC; Kearns, JB; Breban, RC (2011): Revisiting three minerals from Cioclovina Cave (Romania). International Journal of Speleology 40, 21-30.

Mineral List

Aragonite Ardealite (TL) Bassanite Berlinite Birnessite Brushite Burbankite Calcite Churchite-(Y)

Collinsite Crandallite Ellestadite-(Cl) ? Fluorapatite Foggite Goethite Gypsum Hematite Hydroxylapatite

Hydroxylapatite var: Carbonate-rich Hydroxylapatite Hydroxylellestadite Illite Kaolinite Leucophosphite Monetite Paratacamite Quartz Romanèchite

Sampleite Taranakite Tinsleyite Todorokite Variscite Vaterite

33 entries listed. 31 valid minerals. 1 type locality (valid mineral).