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Mt Ibity (Mt Bity), Ibity massif, Ibity, Antsirabe II, Vakinankaratra, Madagascari
Regional Level Types
Mt Ibity (Mt Bity)Mountain
Ibity massifMassif
IbityCommune
Antsirabe IIDistrict
VakinankaratraRegion
MadagascarCountry

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Key
Latitude & Longitude (WGS84):
20° 6' 34'' South , 47° 0' 38'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Antsirabe186,253 (2018)27.2km
Soanindrariny21,000 (2018)32.9km
Betafo29,785 (2018)35.0km
Fandriana31,437 (2018)41.2km


The Ibity Massif with its highest point (Mt. Ibity) at 2292 m is a good landmark for the area. In many older articles on the minerals in the Sahatany Pegmatite Field, this area has been refered to as just "Mt. Ibity" (or in elder french literature "Mt. Bity"). In this database however, the locality Mt. Ibity refers only to the minerals found at several points in the quartzite massif close to the summit, not to the numerous pegmatites in the valley below this massif: for those see the Sahatany valley entry.

Regions containing this locality

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

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

Lazulite
Formula: MgAl2(PO4)2(OH)2
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Geologique A. 1871; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 910.
Quartz
Formula: SiO2
Habit: massive
Colour: Blue
Reference: Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Geologique A. 1871

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
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
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H LazuliteMgAl2(PO4)2(OH)2
OOxygen
O LazuliteMgAl2(PO4)2(OH)2
O QuartzSiO2
MgMagnesium
Mg LazuliteMgAl2(PO4)2(OH)2
AlAluminium
Al LazuliteMgAl2(PO4)2(OH)2
SiSilicon
Si QuartzSiO2
PPhosphorus
P LazuliteMgAl2(PO4)2(OH)2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Lacroix, A. (1908): Les minéraux des filons de pegmatites à tourmaline litique de Madagascar. Bulletin de la Société française de Minéralogie, Paris 31, 218-247 [on lazulite p 244]
Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Geologique A. 1871
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 910.


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