Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

Mineralogical Magazine (1997): 61: 213-231

ⓘ Braunite

Formula: Mn²⁺Mn³⁺₆(SiO₄)O₈

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

Mineralogical Magazine (1997): 61: 213-231

ⓘ Diaspore

Formula: AlO(OH)

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

Mineralogical Magazine (1997) 61:213-231

ⓘ Diaspore var. Mangan-diaspore

Formula: (Al,Mn)O(OH)

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

Mineralogical Magazine (1997) 61:213-231

ⓘ Ephesite

Formula: NaLiAl₂(Al₂Si₂O₁₀)(OH)₂

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Gamagarite

Formula: Ba₂Fe³⁺(VO₄)₂(OH)

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

Mineralogical Magazine (1997): 61: 213-231

ⓘ Hematite

Formula: Fe₂O₃

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Hematite var. Specularite

Formula: Fe₂O₃

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Lithiophorite

Formula: (Al,Li)MnO₂(OH)₂

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

Mineralogical Magazine (1997) 61:213-231

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Muscovite var. Illite

Formula: K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ 'Psilomelane'

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Pyrolusite

Formula: Mn⁴⁺O₂

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Quartz

Formula: SiO₂

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Romanèchite

Formula: (Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀

References:

Mineralogical Magazine (1997): 61: 213-231

ⓘ Rutile

Formula: TiO₂

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Hematite var. Specularite	4.CB.05	Fe₂O₃
ⓘ		4.CB.05	Fe₂O₃
ⓘ	Bixbyite-(Mn)	4.CB.10	Mn³⁺₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Pyrolusite	4.DB.05	Mn⁴⁺O₂
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	Romanèchite	4.DK.10	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀
ⓘ	Diaspore	4.FD.10	AlO(OH)
ⓘ	var. Mangan-diaspore	4.FD.10	(Al,Mn)O(OH)
ⓘ	Lithiophorite	4.FE.25	(Al,Li)MnO₂(OH)₂
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Gamagarite	8.BG.05	Ba₂Fe³⁺(VO₄)₂(OH)
Group 9 - Silicates
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Braunite	9.AG.05	Mn²⁺Mn³⁺₆(SiO₄)O₈
ⓘ	Muscovite var. Illite	9.EC.15	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ		9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Ephesite	9.EC.20	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
Unclassified
ⓘ	'Psilomelane'	-
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Diaspore	AlO(OH)
H	ⓘ Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂
H	ⓘ Gamagarite	Ba₂Fe³⁺(VO₄)₂(OH)
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
H	ⓘ Diaspore var. Mangan-diaspore	(Al,Mn)O(OH)
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Romanèchite	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀
Li	Lithium
Li	ⓘ Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂
Li	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
B	Boron
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	Oxygen
O	ⓘ Bixbyite-(Mn)	Mn₂³⁺O₃
O	ⓘ Braunite	Mn²⁺Mn₆³⁺(SiO₄)O₈
O	ⓘ Diaspore	AlO(OH)
O	ⓘ Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂
O	ⓘ Gamagarite	Ba₂Fe³⁺(VO₄)₂(OH)
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
O	ⓘ Diaspore var. Mangan-diaspore	(Al,Mn)O(OH)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Pyrolusite	Mn⁴⁺O₂
O	ⓘ Quartz	SiO₂
O	ⓘ Romanèchite	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀
O	ⓘ Rutile	TiO₂
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Hematite var. Specularite	Fe₂O₃
Na	Sodium
Na	ⓘ Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂
Al	Aluminium
Al	ⓘ Diaspore	AlO(OH)
Al	ⓘ Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
Al	ⓘ Diaspore var. Mangan-diaspore	(Al,Mn)O(OH)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Braunite	Mn²⁺Mn₆³⁺(SiO₄)O₈
Si	ⓘ Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Zircon	Zr(SiO₄)
K	Potassium
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ti	Titanium
Ti	ⓘ Rutile	TiO₂
V	Vanadium
V	ⓘ Gamagarite	Ba₂Fe³⁺(VO₄)₂(OH)
Mn	Manganese
Mn	ⓘ Bixbyite-(Mn)	Mn₂³⁺O₃
Mn	ⓘ Braunite	Mn²⁺Mn₆³⁺(SiO₄)O₈
Mn	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
Mn	ⓘ Diaspore var. Mangan-diaspore	(Al,Mn)O(OH)
Mn	ⓘ Pyrolusite	Mn⁴⁺O₂
Mn	ⓘ Romanèchite	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀
Fe	Iron
Fe	ⓘ Gamagarite	Ba₂Fe³⁺(VO₄)₂(OH)
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Hematite var. Specularite	Fe₂O₃
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Ba	Barium
Ba	ⓘ Gamagarite	Ba₂Fe³⁺(VO₄)₂(OH)
Ba	ⓘ Romanèchite	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀

Other Regions, Features and Areas containing this locality

Africa

Kalahari DesertDesert

African PlateTectonic Plate

South Africa

Northern Cape
- Postmasburg manganese fieldMining Field

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Mineralogical Magazine (1997): 61: 213-231.

Cairncross, B., and Beukes, N. J., (2013) The Kalahari Manganese Field, the adventure continues. Struik Nature Publishers, Cape Town, South Africa, 32 pp.

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