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Andapa Pegmatite Field, Andapa District, Sava, Madagascari
Regional Level Types
Andapa Pegmatite FieldPegmatite Field
Andapa DistrictDistrict
SavaRegion
MadagascarCountry

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Latitude & Longitude (WGS84):
14° South , 49° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~64km
GRN:
S10E34
Type:
Pegmatite Field
KΓΆppen climate type:
Af : Tropical rainforest climate
Mindat Locality ID:
130629
Long-form identifier:
mindat:1:2:130629:6
GUID (UUID V4):
feb9a4a9-6457-479f-9895-ab88207905e2
Name(s) in local language(s):
Ny pegmatitan' i Andapa, Distrikan' Andapa, Faritr'i Sava, Faritanin' Antsiranana, Madagasikara


Both Beryl-Columbite type and NYF granite pegmatites are found in this area. The size of the pegmatites varies, many of them can be up to 10 m thick to 100 m long. These has been worked for beryl (Santa Maria- coloured beryl is especially known from this area) but also beautiful quartz and amethysts. Some of the localities are situated inside the special reserves (national parks) of Marojejy and Anjanaharibe Sud. Illegal mining of Amethysts and Beryls from this area is a problem.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

4 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Beryl
Formula: Be3Al2(Si6O18)
Colour: Color variety "Santa Maria"
β“˜ Beryl var. Aquamarine
Formula: Be3Al2Si6O18
β“˜ 'K Feldspar'
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ 'Mica Group'
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Amethyst
Formula: SiO2
β“˜ Quartz var. Smoky Quartz
Formula: SiO2
β“˜ Topaz
Formula: Al2(SiO4)(F,OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Quartz4.DA.05SiO2
β“˜var. Amethyst4.DA.05SiO2
β“˜var. Smoky Quartz4.DA.05SiO2
Group 9 - Silicates
β“˜Beryl9.CJ.05Be3Al2(Si6O18)
β“˜var. Aquamarine9.CJ.05Be3Al2Si6O18
β“˜Topaz9.AF.35Al2(SiO4)(F,OH)2
Unclassified Minerals, Rocks, etc.
β“˜'K Feldspar'-
β“˜'Mica Group'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ TopazAl2(SiO4)(F,OH)2
BeBeryllium
Beβ“˜ BerylBe3Al2(Si6O18)
Beβ“˜ Beryl var. AquamarineBe3Al2Si6O18
OOxygen
Oβ“˜ BerylBe3Al2(Si6O18)
Oβ“˜ TopazAl2(SiO4)(F,OH)2
Oβ“˜ Quartz var. Smoky QuartzSiO2
Oβ“˜ Beryl var. AquamarineBe3Al2Si6O18
Oβ“˜ Quartz var. AmethystSiO2
Oβ“˜ QuartzSiO2
Oβ“˜ MagnetiteFe2+Fe23+O4
FFluorine
Fβ“˜ TopazAl2(SiO4)(F,OH)2
AlAluminium
Alβ“˜ BerylBe3Al2(Si6O18)
Alβ“˜ TopazAl2(SiO4)(F,OH)2
Alβ“˜ Beryl var. AquamarineBe3Al2Si6O18
SiSilicon
Siβ“˜ BerylBe3Al2(Si6O18)
Siβ“˜ TopazAl2(SiO4)(F,OH)2
Siβ“˜ Quartz var. Smoky QuartzSiO2
Siβ“˜ Beryl var. AquamarineBe3Al2Si6O18
Siβ“˜ Quartz var. AmethystSiO2
Siβ“˜ QuartzSiO2
FeIron
Feβ“˜ MagnetiteFe2+Fe23+O4

Localities in this Region

Madagascar

Other Regions, Features and Areas containing this locality

Madagascar
Somali PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Pezzotta, Federico (1999) Madagaskar. Das Paradies der Mineralien und Edelsteine. Extra Lapis 17. Christian Weise Verlagpp.40-41
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