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Andrarafato Mt., Antamboholehibe, Anjoman'ankona, Manandriana, Amoron'i Mania, Madagascari
Regional Level Types
Andrarafato Mt.Group of Quarries (Active)
Antamboholehibe- not defined -
Amoron'i ManiaRegion

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Name in Malagasy:Andrarafato, Antamboholehibe, Kaomininin' Anjoman'ankona, Distrikan'i Manandriana, Faritra Amoron'i Mania, Madagasikara
Latitude & Longitude (WGS84): 20° 37' 53'' South , 47° 5' 4'' East
Latitude & Longitude (decimal): -20.63144,47.08451
GeoHash:G#: mh36xkjvh
Locality type:Group of Quarries (Active) - last checked 2018
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
Ambositra30,353 (2018)20.0km
Ambatofinandrahana25,997 (2018)30.5km

Group of small scale artisanal workings for piezoelectric quartz, located at the E, NE and NNW flancs of the Andrarafato Mt., located NW of the village of Antamboholehibe, in "the Ambatofinandrahana area", about 20 km SW of the town Ambositra in the main highland of Madagacascar. Extraction started in 1906. The production reached a peak in 2000 with a production of 1 085 273,80 kg quartz.

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Fianarantsoa Province, MadagascarProvince

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

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

Mineral List

1 valid mineral.

Rock Types Recorded

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Detailed Mineral List:

Formula: SiO2
Reference: Razafimahatratra, D., Ralantonirina, J, Rakotondrasoa, D. & Andriamamonjy, A. (2018) Le gisement de quartz piézoélectrique d'Antamboholehibe, Région d'Ambatofinandrahana, Madagascar. Le Régne Minéral. 141: 35-43

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides

List of minerals arranged by Dana 8th Edition classification

Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si

List of minerals for each chemical element

O QuartzSiO2
Si QuartzSiO2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

2050 - 2300 Ma

ID: 3310225

Age: Rhyacian (2050 - 2300 Ma)

Lithology: Plutonic and metamorphic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

2500 - 4000 Ma

ID: 3186685
Archean crystalline metamorphic rocks

Age: Archean (2500 - 4000 Ma)

Lithology: Granodiorite gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Razafimahatratra, D., Ralantonirina, J, Rakotondrasoa, D. & Andriamamonjy, A. (2018) Le gisement de quartz piézoélectrique d'Antamboholehibe, Région d'Ambatofinandrahana, Madagascar. Le Régne Minéral. 141: 35-43

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