|Latitude & Longitude (WGS84):||20° 44' 48'' South , 46° 4' 30'' East|
|Latitude & Longitude (decimal):||-20.74667,46.07500|
|Köppen climate type:||Cwa : Monsoon-influenced humid subtropical climate|
|Name(s) in local language(s):||Karieran'i Sakavalana, Ambatovita, Kaominin'i Mandrosonoro, Distrikan' Ambatofinandrahana, Faritra Amoron'i Mania, Faritanin'i Fianarantsoa, Madagasikara|
Gem mining in a granitic pegmatite 4-6 meters wide with a length of 200 meters. Noteworthy as the type locality of pezzottaite.
Located in the northern part of the Ampandramaika-Malakialina pegmatite field in the central highland of Madagascar, about 140 km south of Antsirabe.
The pegmatite is hosted by marbles belonging to the Vohimena group. Mining started here at the beginning of the 1940s by French colonists, and in November-December 2002 a large cavity containing multicolored tourmaline and deep pink crystals was discovered. The deep pink crystals, which were first designated "raspberry" beryl (béryl framboise), were later shown to be a new mineral species, pezzottaite (Laurs et al. 2003).
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
21 valid minerals. 1 (TL) - type locality of valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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 Macrostrat.org
1000 - 1600 Ma
Age: Mesoproterozoic (1000 - 1600 Ma)
Lithology: Plutonic and metamorphic
Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. 
|Ectasian - Calymmian|
1200 - 1600 Ma
|Mesoproterozoic crystalline metamorphic rocks|
Age: Mesoproterozoic (1200 - 1600 Ma)
Lithology: Crystalline metamorphic rocks
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.