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Analambano, Ibity massif, Ibity, Antsirabe II, Vakinankaratra, Madagascari
Regional Level Types
Analambano- not defined -
Ibity massifMassif
IbityCommune
Antsirabe IIDistrict
VakinankaratraRegion
MadagascarCountry

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Name in Malagasy:Analambano, Tangorombohitr' Ibity, Kaominin' Alatsinainy Ibity, Distrikan' Antsirabe II, Vakinankaratra, Madagasikara
Latitude & Longitude (WGS84): 20° 3' 41'' South , 47° 2' 12'' East
Latitude & Longitude (decimal): -20.06146,47.03669
GeoHash:G#: mh3my7gjd
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Antsirabe186,253 (2018)21.7km
Soanindrariny21,000 (2018)27.3km
Betafo29,785 (2018)32.0km
Fandriana31,437 (2018)40.9km


A deposit with a lazulite-bearing metaquartzite. Pieces for ornamental use (mostly polished eggs and spheres for solitaire games) have been taken out here on a small scale. It is situated about 500 metres north-north-east of the summit of Mt. Ibity and about 2 km west of the village of Manandona in the central highland of Madagascar.

Coordinates are approximate.

Regions containing this locality

Somali Plate (Somalia Plate)Plate
Antananarivo Province, MadagascarProvince (Abolished)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

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:

Lazulite
Formula: MgAl2(PO4)2(OH)2

List of minerals arranged by Strunz 10th Edition classification

Group 8 - Phosphates, Arsenates and Vanadates
Lazulite8.BB.40MgAl2(PO4)2(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)3(XO4)2Zq
Lazulite41.10.1.1MgAl2(PO4)2(OH)2

List of minerals for each chemical element

HHydrogen
H LazuliteMgAl2(PO4)2(OH)2
OOxygen
O LazuliteMgAl2(PO4)2(OH)2
MgMagnesium
Mg LazuliteMgAl2(PO4)2(OH)2
AlAluminium
Al LazuliteMgAl2(PO4)2(OH)2
PPhosphorus
P LazuliteMgAl2(PO4)2(OH)2

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 Macrostrat.org

Archean
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]

Neoarchean
2500 - 2800 Ma



ID: 3311817

Age: Neoarchean (2500 - 2800 Ma)

Lithology: Plutonic and metamorphic

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

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Lacroix, A. (1922) Minéralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A. Challamel (Éditeur), Paris. [pp. 356-357].
Ackermand, D., Morteani, G., and Razakamanana, T. (2004) Lazulite-bearing metaquartzite of the Itremo Group (Central Madagascar): Scientific significance and economic importance. Proceedings of the German-Malagasy Research Cooperation in Life and Earth Sciences, Semaines Culturelles Germano-Malagasy, [eds. Schwitzer, C., Brandt, S, et.al.], 5-18.

External Links

http://www.aeecl.org/documents/9.pdf [Ackermand et al. 2006]


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