Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar i
Regional Level Types
Antsakoa I pegmatite Pegmatite
Bekapaika Commune Commune
Tsaratanàna District District
Betsiboka Region
Madagascar Country

A granite LCT pegmatite, Beryll-Columbite subtype that has been worked for Beryl. The pegmatite was zonated and measured 200 x 60 m. It is now exhausted. This was the main locality in the Berere Pegmatite Field and is situated 600 m NW of the village Berere, 40km NE of Tsaratanana.

The coordinates are not verified by visit at the spot.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

13 valid minerals. 2 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ 'Pegmatite'

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

References:

Giraud, P

Giraud, P., Bertucat, M., Giraudom, R. (1957) Etude gèologique et prospection de la feuille Betrandraka (P-42) 1:100.000 et du champ pegmatique de Berere. Travaux du Bureau Gèologique 82. Haut Commisariat de Madagascar et dependances

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

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ Euxenite-(Y)

Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ 'Feldspar Group'

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.134

ⓘ 'Feldspar Group var. Perthite'

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.134

ⓘ 'Fergusonite'

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

References:

Giraud, P

ⓘ Halloysite

Formula: Al₂(Si₂O₅)(OH)₄

Colour: white, yellowish brown

Description: Crust on petscheckite together with liandratite and a pyrochlore group mineral

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ Liandratite (TL)

Formula: U(Nb,Ta)₂O₈

Type Locality:

Colour: yellow to brown

Description: As a 2mm thick crust on petscheckite

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ 'Monazite'

Formula: REE(PO₄)

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ Petscheckite (TL)

Formula: UFe(Nb,Ta)₂O₈

Type Locality:

Colour: black

Description: As metamict crystals up to 4 cm long and 2 cm thick with a greybrowh\n, brown, yellow or white crust of varying thickness.

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ Petscheckite var. Hydroxy-petscheckite

Formula: U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ Petscheckite var. Oxy-petscheckite

Formula: UFe³⁺_2/3◻_1/3(Nb,Ta)₂O₈

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ 'Pyrochlore Supergroup'

Formula: A_2-mD₂X_6-wZ_1-n

Description: A fingrained crust on petscheckite together with liandratite and halloysite

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)'

Formula: (Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ Quartz

Formula: SiO₂

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.134

ⓘ Quartz var. Rose Quartz

Formula: SiO₂

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ Rutile

Formula: TiO₂

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ Rutile var. Strüverite

Formula: (Ti,Ta,Fe)O₂

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ Samarskite-(Y)

Formula: YFe³⁺Nb₂O₈

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ Spessartine

Formula: Mn²⁺₃Al₂(SiO₄)₃

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

References:

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachep.59

Gallery:

U(Nb,Ta)₂O₈ⓘ Liandratite (TL)

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Rose Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	var. Strüverite	4.DB.05	(Ti,Ta,Fe)O₂
ⓘ	Samarskite-(Y)	4.DB.25	YFe³⁺Nb₂O₈
ⓘ	Euxenite-(Y)	4.DG.05	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
ⓘ	Petscheckite (TL)	4.DH.35	UFe(Nb,Ta)₂O₈
ⓘ	var. Hydroxy-petscheckite	4.DH.35	U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)
ⓘ	Liandratite (TL)	4.DH.35	U(Nb,Ta)₂O₈
ⓘ	Petscheckite var. Oxy-petscheckite	4.DH.35	UFe³⁺_2/3◻_1/3(Nb,Ta)₂O₈
Group 9 - Silicates
ⓘ	Spessartine	9.AD.25	Mn²⁺₃Al₂(SiO₄)₃
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Halloysite	9.ED.10	Al₂(Si₂O₅)(OH)₄
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)'	-	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
ⓘ	'Monazite'	-	REE(PO₄)
ⓘ	'Feldspar Group'	-
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Feldspar Group var. Perthite'	-
ⓘ	'Columbite-(Fe)-Columbite-(Mn) Series'	-
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Fergusonite'	-
ⓘ	'Pyrochlore Supergroup'	-	A_2-mD₂X_6-wZ_1-n

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Halloysite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Petscheckite var. Hydroxy-petscheckite	U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Be	Beryllium
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
B	Boron
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
O	ⓘ Halloysite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Petscheckite var. Hydroxy-petscheckite	U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Liandratite	U(Nb,Ta)₂O₈
O	ⓘ Monazite	REE(PO₄)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Petscheckite var. Oxy-petscheckite	UFe³⁺_2/3◻_1/3(Nb,Ta)₂O₈
O	ⓘ Petscheckite	UFe(Nb,Ta)₂O₈
O	ⓘ Quartz	SiO₂
O	ⓘ Quartz var. Rose Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
O	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
O	ⓘ Rutile var. Strüverite	(Ti,Ta,Fe)O₂
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Halloysite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Halloysite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Quartz var. Rose Quartz	SiO₂
Si	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
P	Phosphorus
P	ⓘ Monazite	REE(PO₄)
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Ca	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ti	Titanium
Ti	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Ti	ⓘ Rutile	TiO₂
Ti	ⓘ Rutile var. Strüverite	(Ti,Ta,Fe)O₂
Mn	Manganese
Mn	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Fe	Iron
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Petscheckite var. Hydroxy-petscheckite	U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Petscheckite var. Oxy-petscheckite	UFe³⁺_2/3◻_1/3(Nb,Ta)₂O₈
Fe	ⓘ Petscheckite	UFe(Nb,Ta)₂O₈
Fe	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Fe	ⓘ Rutile var. Strüverite	(Ti,Ta,Fe)O₂
Y	Yttrium
Y	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Y	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Nb	Niobium
Nb	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Nb	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Nb	ⓘ Petscheckite var. Hydroxy-petscheckite	U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)
Nb	ⓘ Liandratite	U(Nb,Ta)₂O₈
Nb	ⓘ Petscheckite var. Oxy-petscheckite	UFe³⁺_2/3◻_1/3(Nb,Ta)₂O₈
Nb	ⓘ Petscheckite	UFe(Nb,Ta)₂O₈
Nb	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Ce	Cerium
Ce	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ta	Tantalum
Ta	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Ta	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ta	ⓘ Petscheckite var. Hydroxy-petscheckite	U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)
Ta	ⓘ Liandratite	U(Nb,Ta)₂O₈
Ta	ⓘ Petscheckite var. Oxy-petscheckite	UFe³⁺_2/3◻_1/3(Nb,Ta)₂O₈
Ta	ⓘ Petscheckite	UFe(Nb,Ta)₂O₈
Ta	ⓘ Rutile var. Strüverite	(Ti,Ta,Fe)O₂
Th	Thorium
Th	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
U	Uranium
U	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
U	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
U	ⓘ Petscheckite var. Hydroxy-petscheckite	U⁴⁺(Fe³⁺_1/3,◻_2/3)(Nb,Ta)₂O₇(O,OH)
U	ⓘ Liandratite	U(Nb,Ta)₂O₈
U	ⓘ Petscheckite var. Oxy-petscheckite	UFe³⁺_2/3◻_1/3(Nb,Ta)₂O₈
U	ⓘ Petscheckite	UFe(Nb,Ta)₂O₈

Other Regions, Features and Areas containing this locality

Madagascar

Betsiboka
- Tsaratanàna District
  - Bekapaika Commune
    - Berere Pegmatite FieldPegmatite Field
⭔Mahajanga Province (Majunga)Province

Somali PlateTectonic Plate

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References

Besaire, Henri (1966) Gîtes minéraux de Madagascar. Annales géologiques de Madagascar Vol. 34. République Malgachepp.134-135

Mücke, Arno, Strunz, Hugo (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist, 63 (9-10) 941-946

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