Fluorite from
Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

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Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite

Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Classification
Locality type:	Open-Cast Mine
Species:	Fluorite
Formula:	CaF₂
Comments:	This mine produced some of the finest sea green fluorite crystal specimens in the world. Fluorite replaces calcite in pegmatitic carbonatites and associated sodic fenites, but also host-rock marbles and biotite schists.
Habit:	Cubic (sharp & lustrous)
Colour:	Deep sea green to purple
Luminescent properties:	Brilliant blue (best LW UV; SW UV).
Quality for species:	Excellent - world class for species or very significant. (!!)
Abundance at site:	Very common
Confirmation
Validity:	Believed Valid
Associated Minerals Based on Photo Data:
Quartz	119
- var Citrine	4
- var Chalcedony	3
Calcite	44
Baryte	17
Fluorapatite	8
Goethite	8
Celestine	3
Aragonite	2
Limonite	1
Siderite	1
Feldspar Group	1
Data
Mineral Data:	Click here to view Fluorite data
Locality Data:	Click here to view Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia
Photo Gallery	View Gallery (662 photos)
Data Identifiers
Mindat Occurrence Record ID:	32742
Long-form Identifier:	1:3:32742:0
GUID (UUID V4):	0
Nearest other occurrences of Fluorite

61.7km (38.3 miles)	ⓘ Paresis Volcanic Complex, Outjo, Kunene Region, Namibia
References
Fluorite: The Collector's Choice. Extra Lapis English No. 9 Van Zijl, P.J. 1962. The geology, structure and petrology of the alkaline intrusions of Kalkfeld and Okorusu and the invaded Damara rocks. Annale Universiteit van Stellenbosch, Serie A, 37, 237-339. Prins, P. 1981. The geochemical evolution of the alkaline and carbonatite complexes of the Damaraland igneous province, South West Africa. Annale Universiteit van Stellenbosch, Serie A1, Geologie, 3, 145-278. Weninger, H. (1972): Zwei bemerkenswerte Mineralvorkommen in Südwestafrika. Der Karinthin 66, 280-284. Harris, Chris (1995) Oxygen isotope geochemistry of the Mesozoic anorogenic complexes of Damaraland, northwest Namibia: evidence for crustal contamination and its effect on silica saturation. Contributions to Mineralogy and Petrology, 122 (3) 308-321 doi:10.1007/s004100050130 MILNER, S. C., LE ROEX, A. P., O'CONNOR, J. M. (1995) Age of Mesozoic igneous rocks in northwestern Namibia, and their relationship to continental breakup. Journal of the Geological Society, 152 (1). 97-104 doi:10.1144/gsjgs.152.1.0097 Le Roex, A. P., Lanyon, R. (1998) Isotope and Trace Element Geochemistry of Cretaceous Damaraland Lamprophyres and Carbonatites, Northwestern Namibia: Evidence for Plume--Lithosphere Interactions. Journal of Petrology, 39 (6) 1117-1146 doi:10.1093/petroj/39.6.1117 *Rustemeyer, Paul (2000) Okorusu: Fundstelle attraktiver Fluorite in Namibia [Okorusu: Site of attractive fluorites in Namibia]. Lapis, 25 (3). 24-29; 50* Bühn, B., Rankin, A.H., Schneider, J., Dulski, P. (2002) The nature of orthomagmatic, carbonatitic fluids precipitating REE,Sr-rich fluorite: fluid-inclusion evidence from the Okorusu fluorite deposit, Namibia. Chemical Geology, 186 (1) 75-98 doi:10.1016/s0009-2541(01)00421-1 Hagni, R.D., , and Viladkar, S.G., (2006) Similarities And Disimilarities Between The Fluorspar Deposits At The Amba Dongar, India And Okorusu, Namibia Carbonatite Complexes. in Geological Association of Canada, Program with Abstracts Volume 31 Lohmeier, S., Machleidt, J., Klemd, R., Ellmies, R. (2023) Okorusu tailings – Part II: REE mineralisation, and oxygen and carbon isotope variations. South African Journal of Geology, 126 (3) 315-336 doi:10.25131/sajg.126.0015

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Fluorite from Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia

Fluorite from
Okorusu Mine, Otjiwarongo Constituency, Otjozondjupa Region, Namibia