One of the biggest Nb-Ta pegmatites in the Tantalite Valley area.
Tantalite mine, recently reopened and operated by a subsidiary of Severin Mining (it had been shut down since the late 1980s). The pegmatite has an almost horizontal disposition and is no more than 10 m thick. It outcrops over a length of 450 m and a width of 45-180 m.

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Mineral List

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8 valid minerals.

Rock Types Recorded

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Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

ⓘ Amphibolite

ⓘ Greisen

ⓘ 'Pegmatite'

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ Albite var. Cleavelandite

Formula: Na(AlSi₃O₈)

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ Bertrandite

Formula: Be₄(Si₂O₇)(OH)₂

Locality: Nek pegmatite, Homestead pegmatite, Tantalite Valley, Karasburg East, ǁKaras Region, Namibia

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ Chrysoberyl

Formula: BeAl₂O₄

References:

von Bezing, Ludi (2007) Namibia - Minerals and Localities. Bode Verlag GmbH, Haltern.

ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ 'Columbite-Tantalite'

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ 'Lepidolite'

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ 'Mica Group'

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ 'Microlite Group'

Formula: A_2-mTa₂X_6-wZ_-n

Description: Secondary microlite, forming pink veins in tantalite

References:

Baldwin, Joy R. (1989) Replacement phenomena in tantalum minerals from rare-metal pegmatites in South Africa and Namibia. Mineralogical Magazine, 53 (373) 571-581 doi:10.1180/minmag.1989.053.373.08

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ Quartz

Formula: SiO₂

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ Spodumene

Formula: LiAlSi₂O₆

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ 'Tantalite'

Formula: (Mn,Fe)(Ta,Nb)₂O₆

References:

Baldwin, J. R. (1994). Lithium and tantalum mineralization in rare-element pegmatites from southern Africa (Doctoral dissertation, University of St Andrews).

ⓘ Tantalite-(Mn)

Formula: Mn²⁺Ta₂O₆

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	'Microlite Group'	4.00.	A_2-mTa₂X_6-wZ_-n
ⓘ	Chrysoberyl	4.BA.05	BeAl₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Tantalite-(Mn)	4.DB.35	Mn²⁺Ta₂O₆
Group 9 - Silicates
ⓘ	Bertrandite	9.BD.05	Be₄(Si₂O₇)(OH)₂
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Spodumene	9.DA.30	LiAlSi₂O₆
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	var. Cleavelandite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Lepidolite'	-
ⓘ	'Tantalite'	-	(Mn,Fe)(Ta,Nb)₂O₆
ⓘ	'Mica Group'	-
ⓘ	'Columbite-(Fe)-Columbite-(Mn) Series'	-
ⓘ	'Columbite-Tantalite'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
Li	Lithium
Li	ⓘ Spodumene	LiAlSi₂O₆
Be	Beryllium
Be	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Be	ⓘ Chrysoberyl	BeAl₂O₄
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Chrysoberyl	BeAl₂O₄
O	ⓘ Tantalite-(Mn)	Mn²⁺Ta₂O₆
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Quartz	SiO₂
O	ⓘ Spodumene	LiAlSi₂O₆
O	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
O	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Chrysoberyl	BeAl₂O₄
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Spodumene	LiAlSi₂O₆
Al	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Quartz	SiO₂
Si	ⓘ Spodumene	LiAlSi₂O₆
Si	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
Mn	Manganese
Mn	ⓘ Tantalite-(Mn)	Mn²⁺Ta₂O₆
Mn	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Fe	Iron
Fe	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Nb	Niobium
Nb	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Ta	Tantalum
Ta	ⓘ Tantalite-(Mn)	Mn²⁺Ta₂O₆
Ta	ⓘ Microlite Group	A_2-mTa₂X_6-wZ_-n
Ta	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆

Localities in this Region

Namibia

ǁKaras Region
- Karasburg East
  - Tantalite Valley
    - Homestead pegmatite
      - Nek pegmatite

Other Regions, Features and Areas containing this locality

African PlateTectonic Plate

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References

(n.d.)

von Bezing, Ludi (2007) Namibia - Minerals and Localities. Bode Verlag GmbH, Haltern.p.384

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