Ampanivana pegmatite, Ampanivana area, Andrembesoa, Betafo District, Vakinankaratra, Madagascari
| Regional Level Types | |
|---|---|
| Ampanivana pegmatite | Pegmatite |
| Ampanivana area | Mineral Occurrence Area |
| Andrembesoa | Commune |
| Betafo District | District |
| Vakinankaratra | Region |
| Madagascar | Country |
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Latitude & Longitude (WGS84):
20° 12' 2'' South , 46° 40' 36'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ambatofinandrahana | 25,997 (2018) | 41.3km |
| Betafo | 29,785 (2018) | 44.6km |
| Antsirabe | 186,253 (2018) | 52.6km |
Other Languages:
Malagasy:
Ny pegmatitan' Ampanivana, Ampanivana, Kaominin' Andrembesoa, Distrikan'i Betafo, Vakinankaratra, Madagasikara
A gem mine worked on a granite pegmatite located 15 km south of the Antsongombato gem mine, ca. 40 km southwest of Mahaiza and some 10s km west of the administrative center of Andrembesoa north of the river Mania in the central highland of Madagascar.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
2 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 DiagramDetailed Mineral List:
| ⓘ Londonite Formula: (Cs,K,Rb)Al4Be4(B,Be)12O28 Habit: dodecahedral crystals up to 1 cm Colour: white and pale yellow Description: Londonite is often observed growing on purple-red tourmaline crystals.
"Several crystals from Ampanivana found in several different pockets has been analyzed by WDS microprobe, included in resin, cut and polished, and their compositions fall all in the londonite field. Actually the Cs contents of the londonites from Ampanivana are among the highest I found for this specie". Personal message from Federico Pezzotta to Konrad Reindl febr. 2017. |
| ⓘ 'Londonite-Rhodizite Series' |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z Colour: red-purple References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 6 - Borates | |||
| ⓘ | Londonite | 6.GC.05 | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| Unclassified | |||
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Londonite-Rhodizite Series' | - | |
List of minerals for each chemical element
| Be | Beryllium | |
|---|---|---|
| Be | ⓘ Londonite | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| Be | ⓘ Londonite-Rhodizite Series | |
| B | Boron | |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| B | ⓘ Londonite | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| B | ⓘ Londonite-Rhodizite Series | |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Londonite | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| O | ⓘ Londonite-Rhodizite Series | |
| Al | Aluminium | |
| Al | ⓘ Londonite | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| Al | ⓘ Londonite-Rhodizite Series | |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| K | Potassium | |
| K | ⓘ Londonite | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| K | ⓘ Londonite-Rhodizite Series | |
| Rb | Rubidium | |
| Rb | ⓘ Londonite | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| Rb | ⓘ Londonite-Rhodizite Series | |
| Cs | Caesium | |
| Cs | ⓘ Londonite | (Cs,K,Rb)Al4Be4(B,Be)12O28 |
| Cs | ⓘ Londonite-Rhodizite Series | |
Other Regions, Features and Areas containing this locality
AfricaContinent
African Plate
- BemItremo BlockOrogenic Belt
Madagascar
- Ankaratra Volcanic RangeVolcanic Range
- ⭔Antananarivo ProvinceProvince
Somali PlateTectonic Plate
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Ampanivana pegmatite, Ampanivana area, Andrembesoa, Betafo District, Vakinankaratra, Madagascar