Pegmatite hosted in highmetamorhic carbonates of the tectonic unit "Tranomaro group". It is located 3km SSW of Morafeno (Behier 1960), south of Tranomaro, about 50 km north of Amboasary, and about 70 km NW of the town of Fort Dauphin (Tôlanaro).

Exploitation for quartz started by the Swiss company Freres Hibon (Hibon brothers) in the 1950s. After 1975 runned by the SOMEMA company, which worked the area in 1993-2000 and found several pockets with bicoloured blue and red
tourmaline, as well several “pencils” of gemmy polychrome tourmaline crystals (Pezzotta and Jobin 2003).

Coordinates based on map and description in Pezzotta (2004), not confirmed.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Gemstones

Mineral List

9 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:

Pezzotta, Federico (2004) Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar [The Anjahamiary Pegmatite near Fort Dauphin, Madagascar]. Lapis, 29 (2) 24-28

ⓘ Albite var. Cleavelandite

Formula: Na(AlSi₃O₈)

References:

Pezzotta, Federico (2004) Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar [The Anjahamiary Pegmatite near Fort Dauphin, Madagascar]. Lapis, 29 (2) 24-28

ⓘ 'Allanite Group'

Formula: (A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

Habit: large irregular prismatic crystals

Description: Covered by iron hydroxides

References:

(2004)

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

References:

Arliguie Michel photo & specimen

ⓘ 'Elbaite-Liddicoatite Series'

References:

Pezzotta, Federico (2004) Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar [The Anjahamiary Pegmatite near Fort Dauphin, Madagascar]. Lapis, 29 (2) 24-28

ⓘ Fluorite

Formula: CaF₂

References:

Behier, Jean (1963) Carte minéralogique de Madagascar. Archive Service Géologique de Madagascar A.1871

ⓘ 'Indicolite'

Formula: A(D₃)G₆(T₆O₁₈)(BO₃)₃X₃Z

References:

www.minsocam.org (2003) http://www.minsocam.org/MSA/Special/Pig/PIG_articles/Anjahamiary.pdf

ⓘ 'Jasper'

References:

(2004)

ⓘ 'K Feldspar'

References:

Pezzotta, Federico (2004) Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar [The Anjahamiary Pegmatite near Fort Dauphin, Madagascar]. Lapis, 29 (2) 24-28

ⓘ 'Lepidolite'

References:

(2004)

ⓘ 'Liddicoatite' ?

Formula: Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

Colour: bluish, black

Description: Bluish portion close to the antilogious pole is by quantitative WDS-microprobe chemical analyses (Pezzotta & Jobin 2003, Pezzotta (2004) showed to be "liddicoatite" s.l. with a high content of Ca. Also the blackish termination of an opaque crystal was "liddicoatite", s.l.

References:

(2004)

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

(2004)

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

(2004)

ⓘ Microcline var. Amazonite

Formula: K(AlSi₃O₈)

References:

(2004)

ⓘ 'Pyrochlore Supergroup'

Formula: A_2-mD₂X_6-wZ_1-n

Habit: Small octahedrons up to 2 mm across

References:

Pezzotta, Federico (2004) Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar [The Anjahamiary Pegmatite near Fort Dauphin, Madagascar]. Lapis, 29 (2) 24-28

ⓘ Quartz

Formula: SiO₂

References:

www.minsocam.org (2003) http://www.minsocam.org/MSA/Special/Pig/PIG_articles/Anjahamiary.pdf

ⓘ Quartz var. Smoky Quartz

Formula: SiO₂

References:

www.minsocam.org (2003) http://www.minsocam.org/MSA/Special/Pig/PIG_articles/Anjahamiary.pdf

ⓘ Rhodizite

Formula: (K,Cs)Al₄Be₄(B,Be)₁₂O₂₈

References:

Behier, Jean (1960) Contribution à la minéralogie de Madagascar. Annales géologiques de Madagascar Vol. 29. République Malgachepp.56-56

ⓘ Rossmanite ?

Formula: ◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

Colour: Pinkis

Description: Analyzed pinkish portions of a low alkali-deficient tourmaline, with Fe og Mg close to zero in concentration, could according to Pezzotta (2004) be regarded as a rossmanite, but he also points to compositional problems with the tourmaline.

References:

(2004)

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

Description: Many crystal have a characteristical bluish color close to the antilogous termination (Pezzotta 2004)

References:

(2004)

ⓘ Zircon

Formula: Zr(SiO₄)

Habit: small sprays up to 7-8mm long

References:

(2004)

Gallery:

AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Zⓘ 'Tourmaline'

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Smoky Quartz	4.DA.05	SiO₂
Group 6 - Borates
ⓘ	Rhodizite	6.GC.05	(K,Cs)Al₄Be₄(B,Be)₁₂O₂₈
Group 9 - Silicates
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Rossmanite ?	9.CK.05	◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
ⓘ	'Liddicoatite' ?	9.CK.05	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	var. Amazonite	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite var. Cleavelandite	9.FA.35	Na(AlSi₃O₈)
ⓘ		9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Lepidolite'	-
ⓘ	'Jasper'	-
ⓘ	'Indicolite'	-	A(D₃)G₆(T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'K Feldspar'	-
ⓘ	'Pyrochlore Supergroup'	-	A_2-mD₂X_6-wZ_1-n
ⓘ	'Elbaite-Liddicoatite Series'	-
ⓘ	'Allanite Group'	-	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Liddicoatite	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
H	ⓘ Rossmanite	◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
H	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
Li	Lithium
Li	ⓘ Liddicoatite	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Li	ⓘ Rossmanite	◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Be	Beryllium
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Be	ⓘ Rhodizite	(K,Cs)Al₄Be₄(B,Be)₁₂O₂₈
B	Boron
B	ⓘ Indicolite	A(D₃)G₆(T₆O₁₈)(BO₃)₃X₃Z
B	ⓘ Liddicoatite	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
B	ⓘ Rhodizite	(K,Cs)Al₄Be₄(B,Be)₁₂O₂₈
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
B	ⓘ Rossmanite	◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Microcline var. Amazonite	K(AlSi₃O₈)
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Indicolite	A(D₃)G₆(T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Liddicoatite	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Quartz	SiO₂
O	ⓘ Rhodizite	(K,Cs)Al₄Be₄(B,Be)₁₂O₂₈
O	ⓘ Quartz var. Smoky Quartz	SiO₂
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Rossmanite	◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
O	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Microcline var. Amazonite	K(AlSi₃O₈)
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Liddicoatite	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Rhodizite	(K,Cs)Al₄Be₄(B,Be)₁₂O₂₈
Al	ⓘ Rossmanite	◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Al	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Microcline var. Amazonite	K(AlSi₃O₈)
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Liddicoatite	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Quartz	SiO₂
Si	ⓘ Quartz var. Smoky Quartz	SiO₂
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Rossmanite	◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Si	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Si	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
K	Potassium
K	ⓘ Microcline var. Amazonite	K(AlSi₃O₈)
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Rhodizite	(K,Cs)Al₄Be₄(B,Be)₁₂O₂₈
Ca	Calcium
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Liddicoatite	Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Fe	Iron
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Cs	Caesium
Cs	ⓘ Rhodizite	(K,Cs)Al₄Be₄(B,Be)₁₂O₂₈

Other Regions, Features and Areas containing this locality

Madagascar

Anosy
- Amboasary Sud District
  - Tranomaro-Maromby areaMineral Occurrence Area
⭔Tuléar Province (Toliara)Province

Somali PlateTectonic Plate

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

Behier, Jean (1960) Contribution à la minéralogie de Madagascar. Annales géologiques de Madagascar Vol. 29. République Malgachepp.56-56 - on the find of rhodizite

Behier, Jean (1963) Carte minéralogique de Madagascar. Archive Service Géologique de Madagascar A.1871

Pezzotta, F., & Jobin, M. (2003). The Anjahamiary pegmatite, Fort Dauphin area, Madagascar. http://www.minsocam.org/MSA/Special/Pig/PIG_articles/Anjahamiary.pdf

www.minsocam.org (2003) http://www.minsocam.org/MSA/Special/Pig/PIG_articles/Anjahamiary.pdf

Pezzotta, Federico (2004) Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar [The Anjahamiary Pegmatite near Fort Dauphin, Madagascar]. Lapis, 29 (2) 24-28

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