Lenoble, A. 1937. Notice explicative sur la Feuille Andapa VW.36-37 (372). Carte Geologique de Reconnaissance a l'echelle du 200000. Gouvernment General de Madagascar et Dependances, Tananarive.

Besaire, Henri (1971) Feuille 2. Antalaha. 1:500000.Carte géologigues Madagascar 1/500.000, Service Geologique de Madagascar.

ⓘ 'Hypersthene'

Formula:(Mg,Fe)SiO₃

References:

Lenoble, A. 1937. Notice explicative sur la Feuille Andapa VW.36-37 (372). Carte Geologique de Reconnaissance a l'echelle du 200000. Gouvernment General de Madagascar et Dependances, Tananarive.

Besaire, Henri (1971) Feuille 2. Antalaha. 1:500000.Carte géologigues Madagascar 1/500.000, Service Geologique de Madagascar.

ⓘ Nepheline

Formula:Na₃K(Al₄Si₄O₁₆)

References:

Lenoble, A. 1937. Notice explicative sur la Feuille Andapa VW.36-37 (372). Carte Geologique de Reconnaissance a l'echelle du 200000. Gouvernment General de Madagascar et Dependances, Tananarive.

Besaire, Henri (1971) Feuille 2. Antalaha. 1:500000.Carte géologigues Madagascar 1/500.000, Service Geologique de Madagascar.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘ	Nepheline	9.FA.05	Na₃K(Al₄Si₄O₁₆)
Unclassified
ⓘ	'Hypersthene'	-	(Mg,Fe)SiO₃
ⓘ	'Fayalite-Forsterite Series'	-

List of minerals for each chemical element

O	Oxygen
O	ⓘ Hypersthene	(Mg,Fe)SiO₃
O	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Na	Sodium
Na	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Mg	Magnesium
Mg	ⓘ Hypersthene	(Mg,Fe)SiO₃
Al	Aluminium
Al	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Si	Silicon
Si	ⓘ Hypersthene	(Mg,Fe)SiO₃
Si	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
K	Potassium
K	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Fe	Iron
Fe	ⓘ Hypersthene	(Mg,Fe)SiO₃

Other Regions, Features and Areas containing this locality

African Plate

Antongil BlockCraton

Madagascar

⭔Antsiranana ProvinceProvince

Somali PlateTectonic Plate

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References

Lenoble, A. 1937. Notice explicative sur la Feuille Andapa VW.36-37 (372). Carte Geologique de Reconnaissance a l'echelle du 200000. Gouvernment General de Madagascar et Dependances, Tananarive.

Besaire, Henri (1971) Feuille 2. Antalaha. 1:500000.Carte géologigues Madagascar 1/500.000, Service Geologique de Madagascar.

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Ankasimbelona Volcanic Field, Andapa District, Sava, MadagascariRegional Level TypesAnkasimbelona Volcanic FieldVolcanic Field Andapa DistrictDistrict SavaRegion MadagascarCountry

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List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Ankasimbelona Volcanic Field, Andapa District, Sava, Madagascar i
Regional Level Types
Ankasimbelona Volcanic Field Volcanic Field
Andapa District District
Sava Region
Madagascar Country