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Ambatomanoina, Ambatomanoina Commune, Anjozorobe, Analamanga, Madagascari
Regional Level Types
Ambatomanoina- not defined -
Ambatomanoina CommuneCommune
AnjozorobeDistrict
AnalamangaRegion
MadagascarCountry

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Key
Latitude & Longitude (WGS84):
18° South , 47° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~13km
Köppen climate type:
Other Languages:
Malagasy:
Ambatomanoina, Kaominin' Ambatomanoina, Distrikan' Anjozorobe, Faritr' Analamanga, Madagasikara


Located near the village of Ambatomanoina about 30km east of Anjozorobe in the southern part of the Ankazobe-Vohambohitra pegmatite field and north of the capitol Antananarivo. Good amethyst-scepters has been found here.
[The locality was originally uploaded as "Ambatomanoina, Ambatolampikely, Antananarivo"]

Note to minerallist:
Concerning the identity of lepidocrocite. The reference is a text to a photo in Pezzotta (1999), german version, p.46. According to John White lepidocrocite has never been positively identified as an inclusion in quartz, see messageboard at : http://www.mindat.org/forum.php?read,7,161112,161318#msg-161318.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


3 valid minerals.

Detailed Mineral List:

'Chlorite Group'
Reference: Jordi Fabre
Hematite
Formula: Fe2O3
Reference: JR Montgomery Collection
Lepidocrocite ?
Formula: γ-Fe3+O(OH)
Description: See messageboard at : http://www.mindat.org/forum.php?read,7,161112,161318#msg-161318.
Reference: Pezzotta, F.(1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17, 44-46 [german version, text to picture p.46]
Quartz
Formula: SiO2
Reference: Jordi Fabre
Quartz var: Amethyst
Formula: SiO2
Reference: Jordi Fabre; Pezzotta, F.(1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17, 44-46 [german version, a short notice]
Quartz var: Sceptre Quartz
Formula: SiO2
Reference: De Ascenção Guedes, R., Lebocey, J. & Bayle, L.-D. (2010): Munich 2010. Le Règne Minéral. 96 (Nov-Déc 2010): 27-44 [p.40-41]

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Lepidocrocite ?4.FE.15γ-Fe3+O(OH)
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Sceptre Quartz4.DA.05SiO2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Lepidocrocite ?6.1.2.2γ-Fe3+O(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Quartz
var: Amethyst
-SiO2
var: Sceptre Quartz-SiO2

List of minerals for each chemical element

HHydrogen
H Lepidocrociteγ-Fe3+O(OH)
OOxygen
O QuartzSiO2
O Quartz (var: Amethyst)SiO2
O Quartz (var: Sceptre Quartz)SiO2
O HematiteFe2O3
O Lepidocrociteγ-Fe3+O(OH)
SiSilicon
Si QuartzSiO2
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Sceptre Quartz)SiO2
FeIron
Fe HematiteFe2O3
Fe Lepidocrociteγ-Fe3+O(OH)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Pezzotta, F.(1999): Madagaskar. Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17, 46 [german version, a short notice]
De Ascenção Guedes, R., Lebocey, J. & Bayle, L.-D. (2010): Munich 2010. Le Règne Minéral. 96 (Nov-Déc 2010): 27-44 [short note on amethysts and quartz sceptre from Ambatomanoina on p.40-41]

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.
 
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