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Ankitsikitsika, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascari
Regional Level Types
AnkitsikitsikaGroup of Quarries
Sahatany ValleyValley
Antsirabe IIDistrict

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Name in Malagasy:Ankitsikitsika, Lohasahan'i Sahatany, Kaominin' Alatsinainy Ibity, Distrikan' Antsirabe II, Vakinankaratra, Madagasikara
Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 20° South , 46° East (est.)
Margin of Error:~9km
Locality type:Group of Quarries
Köppen climate type:Cwb : Subtropical highland climate or temperate oceanic climate with dry winters

A group of at last 3 small quarries located south of the village of Antsira in the Sahatany Valley SW of the town Antsirabe in the central highland of Madagascar. Pegmatites of complex type (LCT) hosted in marble are worked for gem polychromatic tourmalines.
Rakotoarison (1964) locality nr 51.

Regions containing this locality

Somali Plate (Somalia Plate)Plate
Antananarivo Province, MadagascarProvince (Abolished)
Sahatany Pegmatite Field (Mt Ibity area), MadagascarPegmatite Field

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

3 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Formula: Be3Al2(Si6O18)
Beryl var: Alkali-beryl
Formula: Be3Al2(Si6O18)
Formula: SiO2
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Formula: LiAlSi2O6
Formula: A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Group 9 - Silicates
var: Alkali-beryl9.CJ.05Be3Al2(Si6O18)
Unclassified Minerals, Rocks, etc.

List of minerals arranged by Dana 8th Edition classification

Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Unclassified Minerals, Mixtures, etc.
var: Alkali-beryl

List of minerals for each chemical element

Li SpodumeneLiAlSi2O6
Be BerylBe3Al2(Si6O18)
Be Beryl (var: Alkali-beryl)Be3Al2(Si6O18)
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
B RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O QuartzSiO2
O RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O SpodumeneLiAlSi2O6
O BerylBe3Al2(Si6O18)
O Beryl (var: Alkali-beryl)Be3Al2(Si6O18)
Al SpodumeneLiAlSi2O6
Al BerylBe3Al2(Si6O18)
Al Beryl (var: Alkali-beryl)Be3Al2(Si6O18)
Si QuartzSiO2
Si SpodumeneLiAlSi2O6
Si BerylBe3Al2(Si6O18)
Si Beryl (var: Alkali-beryl)Be3Al2(Si6O18)


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Lacroix, A. (1912) Sur quelques minéraux des pegmatites du Vakinankaratra (Madagascar). Bulletin de la Société française de Minéralogie, 35, 76-84 [on spodumene].
Lacroix, A. (1912) La tourmaline noire des environs de Betroka (Madagascar). Bulletin de la Société française de Minéralogie, 35, 123-129 [on tourmaline].
Lacroix, A. (1912) Sur la continuité de la variation des propriétés physiques des béryls de Madagascar, en relation avec leur composition chimique. Bulletin de la Société française de Minéralogie, 35, 200-208 [on beryl].
Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A 1983, 39 pp.

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