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Sandamap pegmatite (Sandamab pegmatite), Sandamap North Farm 115 (Sandamab), Usakos, Karibib District, Erongo Region, Namibia
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Mélonjosephite
Sandamap pegmatite, Sandamap North Farm 115, Usakos, Karibib District, Erongo Region, Namibia

Photo: jo-esche 2013
 
 
A phosphate pegmatite rich in secondary phosphates, is situated on Farm Sandamap North 115, just east of the Usakos-Uis road, it stands out in the surrounding landscape as a quartz capped hill with white quartz scree on the slopes. The farmstead is known locally as Sandamab & in some of the literature the pegmatite is also written as "Sandamab".

Initial mining started in the 1920s when cassiterite was mined & this mine was one of the first tin mines in the area. Mining was haphazard following the tin-rich areas & the mine changed hands many times. The last epoch of mining was mainly for petalite. There are large dilapidated excavations on the hill with dumps scattered over the hill slope. Mining ceased many years ago.

Mineral List

Alluaudite
Barbosalite
Bermanite
Cassiterite
Columbite-(Fe)
Cyrilovite
Dufrénite
Elbaite
Eosphorite
Fairfieldite
Fluorapatite
Frondelite
Giniite (TL)
Heterosite
Hureaulite
'Jahnsite Group'
Kidwellite
Kryzhanovskite
Laueite
'Lepidolite'
Leucophosphite
Lipscombite
Manganite
Mélonjosephite
Microcline
Mitridatite
Monetite
Montgomeryite
Natrojarosite
Phosphosiderite
Purpurite
Quartz
Robertsite
Schorl
Scorzalite
Strengite
Tantalite-(Fe)
Tavorite
Triphylite
Triplite
Ushkovite
Variscite
Vivianite
Whiteite-(CaMnMg)
Whitlockite


45 entries listed. 43 valid minerals. 1 type locality (valid mineral).

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References

Keller, P., (1974): Phosphatmineralien aus Pegmatiten Südwestafrikas. Der Aufschluss, 25: 577-591.

Keller, P., (1980): Neues Jahrb. Mineral., Monatsh: 49-56, 561-563.

Keller, P., (1985): Neue Mineralfunde aus dem Pegmatit von Sandamab, SWA/Namibia. Der Aufschluss, 36: 117-119.

Schumann (1992): Minerals of the World: 184.

Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia. Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag, Haltern: 407 (in English).


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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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