Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Alaotra-Mangoro, Madagascari
Regional Level Types
Alaotra-MangoroRegion
MadagascarCountry

Coat of Arms of Alaotra-Mangoro
This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
Area:
31,948 km2
Type:
Largest Settlements:
PlacePopulation
Amparafaravola51,519 (2018)
Ambatondrazaka43,134 (2018)
Moramanga29,212 (2018)
Andilamena19,750 (2018)
Bemaitso8,000 (2018)
Mindat Locality ID:
157725
Long-form identifier:
mindat:1:2:157725:2
GUID (UUID V4):
0
Other Languages:
French:
Alaotra-Mangoro, Madagascar
German:
Alaotra-Mangoro, Madagaskar
Italian:
regione di Alaotra Mangoro, Madagascar
Malagasy:
Faritr' Alaotra-Mangoro, Madagasikara
Russian:
ะะปะฐัƒั‚ั€ะฐ-ะœะฐะฝะณัƒั€ัƒ, ะœะฐะดะฐะณะฐัะบะฐั€
Simplified Chinese:
้˜ฟๆ‹‰ๅฅง็‰นๆ‹‰-ๆ›ผๅค็พ…ๅ€, ้ฉฌ่พพๅŠ ๆ–ฏๅŠ 
Spanish:
Regiรณn de Alaotra-Mangoro, Madagascar
Arabic:
ุฃู„ุงูˆุชุฑุง ู…ุงู†ุบูˆุฑูˆ, ู…ุฏุบุดู‚ุฑ
Bengali:
เฆ…เงเฆฏเฆพเฆฒเฆพเฆ“เฆคเงเฆฐเฆพ-เฆฎเฆพเฆ™เงเฆ—เฆฐเง‹, เฆฎเฆพเฆฆเฆพเฆ—เฆพเฆธเงเฆ•เฆพเฆฐ
Breton:
Alaotra-Mangoro, Madagaskar
Bulgarian:
ะะปะฐะพั‚ั€ะฐ-ะœะฐะฝะณะพั€ะพ, ะœะฐะดะฐะณะฐัะบะฐั€
Cebuano:
Alaotra Mangoro Region, Madagascar
Danish:
Alaotra-Mangoro, Madagaskar
Dutch:
Alaotra-Mangoro, Madagaskar
Esperanto:
Alaotra-Mangoro, Madagaskaro
Farsi/Persian:
ุขู„ุงุฆูˆุชุฑุง-ู…ุงู†ฺฏูˆุฑูˆ, ู…ุงุฏุงฺฏุงุณฺฉุงุฑ
Finnish:
Alaotra-Mangoro, Madagaskar
Greek:
ฮ‘ฮปฮฑฯŒฯ„ฯฮฑ-ฮœฮฑฮฝฮณฮบฯŒฯฮฟ, ฮœฮฑฮดฮฑฮณฮฑฯƒฮบฮฌฯฮท
Gujarati:
เช…เชฒเชพเช“เชŸเซเชฐเชพ-เชฎเชพเช‚เช—เซ‹เชฐเซ‹, เชฎเชกเชพเช—เชพเชธเซเช•เชฐ
Hindi:
เค…เคฒเคพเค“เคคเฅเคฐเคพ-เคฎเค‚เค—เฅ‹เคฐเฅ‹, เคฎเฅ‡เคกเคพเค—เคพเคธเฅเค•เคฐ
Indonesian:
Alaotra-Mangoro, Madagaskar
Japanese:
ใ‚ขใƒญใƒใƒฃ๏ผใƒžใƒณใ‚ฐใƒซๅœฐๅŸŸๅœ, ใƒžใƒ€ใ‚ฌใ‚นใ‚ซใƒซ
Kannada:
เฒ…เฒฒเฒพเฒคเณเฒฐเฒพ-เฒฎเฒพเฒ‚เฒ—เณ‹เฒฐเณŠ, เฒฎเฒกเฒ—เฒพเฒธเณเฒ•เฒฐเณ
Korean:
์•Œ๋ผ์˜คํŠธ๋ผ๋ง๊ณ ๋กœ ๊ตฌ, ๋งˆ๋‹ค๊ฐ€์Šค์นด๋ฅด
Latvian:
Alautra-Mangoro, Madagaskara
Lithuanian:
Alotra-Mangoras, Madagaskaras
Malay:
Alaotra-Mangoro, Madagaskar
Marathi:
เค…เคฒเคพเค“เคคเฅเคฐเฅเคฐเคพ-เคฎเค‚เค—เฅ‹เคฐเฅ‹, เคฎเคพเคฆเคพเค—เคพเคธเฅเค•เคฐ
Minnan / Hokkien-Taiwanese:
Alaotra-Mangoro Khu
Norwegian:
Alaotra-Mangoro, Madagaskar
Polish:
Alaotra-Mangoro, Madagaskar
Portuguese:
Alaotra Mangoro, Madagรกscar
Romanian:
Regiunea Alaotra-Mangoro, Madagascar
Serbo-Croatian:
Regija Alaotra-Mangoro, Madagaskar
Sinhalese:
เถ…เถฝเทœเถงเทŠโ€เถปเท-เถธเถฑเทŠเถœเทœเถปเท, เถธเทเถฉเถœเทƒเทŠเถšเถปเถบ
Swahili:
Alaotra-Mangoro, Madagaska
Swedish:
Alaotra Mangororegionen, Madagaskar
Tamil:
เฎ…เฎฒเฎตเฏเฎŸเฏเฎฑเฎพ-เฎฎเฎ™เฏเฎ•เฏ‹เฎฐเฎพ, เฎฎเฎŸเฎ•เฎพเฎšเฏเฎ•เฎฐเฏ
Telugu:
เฐ…เฐฒเฐตเฑ‹เฐŸเฑเฐฐเฐพ-เฐฎเฐพเฐ‚เฐ—เฑ‹เฐฐเฑ‹, เฐฎเฐกเฐ—เฐพเฐธเฑเฐ•เฐฐเฑ
Thai:
เธญเธฒเน€เธฅเธฒเธ•เธฃเธฒ เธกเธฑเธ‡เน‚เธเน‚เธฃ, เธ›เธฃเธฐเน€เธ—เธจเธกเธฒเธ”เธฒเธเธฑเธชเธเธฒเธฃเนŒ
Traditional Chinese:
้˜ฟๆ‹‰ๅฅง็‰นๆ‹‰-ๆ›ผๅค็พ…ๅ€, ้ฆฌ้”ๅŠ ๆ–ฏๅŠ 
Turkish:
Alaotra-Mangoro, Madagaskar
Ukrainian:
ะะปะฐะพั‚ั€ะฐ-ะœะฐะฝะณะพั€ะพ, ะœะฐะดะฐะณะฐัะบะฐั€
Urdu:
ุขู„ุงูˆุชุฑุง-ู…ุงู†ฺฏูˆุฑูˆ, ู…ฺˆุบุงุณฺฉุฑ
Vietnamese:
Alaotra-Mangoro, Madagascar


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

36 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

โ“˜ Albite
Formula: Na(AlSi3O8)
โ“˜ Almandine
Formula: Fe2+3Al2(SiO4)3
Habit: Dominant form is {110}, but strongly distorted trigonal crystals with {211} and {431} as dominant forms with {221} and {111} has also been observed
โ“˜ Andradite
Formula: Ca3Fe3+2(SiO4)3
References:
โ“˜ Asbolane ?
Formula: (Ni,Co)2-xMn4+(O,OH)4 · nH2O
Description: Investigated with a qualitative analysis by Behier (1960), may be a cobaltian asbolane or a heterogenite.
โ“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
โ“˜ Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 12 localities in this region.
โ“˜ Beryl var. Aquamarine
โ“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Localities: Reported from at least 6 localities in this region.
โ“˜ Chrysoberyl
Formula: BeAl2O4
Localities: Reported from at least 7 localities in this region.
โ“˜ 'Chrysoprase'
โ“˜ 'Columbite-(Fe)-Columbite-(Mn) Series'
โ“˜ 'Columbite-Tantalite'
โ“˜ Corundum
Formula: Al2O3
Localities: Reported from at least 10 localities in this region.
โ“˜ Corundum var. Padparadscha
Formula: Al2O3
โ“˜ Corundum var. Ruby
Formula: Al2O3
โ“˜ Corundum var. Sapphire
Formula: Al2O3
Localities: Reported from at least 7 localities in this region.
Habit: Rounded nodules
Colour: Blue, yellow
Description: Found about 2015. Cut gemstones to 50 carats produced by 2017. Exceptionally high quality deep blue sapphire equivalent in quality to "Kashmir" sapphire. Fine clean blue stones over 100 carats and some attractive pinkish orange stones over 50 carats
โ“˜ Covellite
Formula: CuS
โ“˜ Dumortierite
Formula: Al(Al2O)(Al2O)2(SiO4)3(BO3)
โ“˜ Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
โ“˜ Euclase
Formula: BeAl(SiO4)(OH)
โ“˜ 'Fayalite-Forsterite Series'
โ“˜ 'Feldspar Group'
Localities: Reported from at least 7 localities in this region.
โ“˜ 'Feldspar Group var. Perthite'
โ“˜ 'Ferrierite Subgroup'
โ“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
โ“˜ 'Garnierite'
โ“˜ Goethite
Formula: Fe3+O(OH)
Habit: needles
Description: as inclusions in amethyst scepters
โ“˜ Graphite
Formula: C
โ“˜ Hematite
Formula: Fe2O3
โ“˜ Hematite var. Martite
Formula: Fe2O3
โ“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
โ“˜ 'K Feldspar'
โ“˜ 'Limonite'
โ“˜ Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 8 localities in this region.
โ“˜ 'Melilite Group'
Formula: A2M(XSiO7)
โ“˜ 'Methane'
Formula: CH4
โ“˜ Microcline
Formula: K(AlSi3O8)
โ“˜ 'Monazite Group'
Formula: REE(PO4)
โ“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 6 localities in this region.
โ“˜ Native Gold
Formula: Au
โ“˜ Native Platinum
Formula: Pt
โ“˜ Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
โ“˜ Opal
Formula: SiO2 · nH2O
โ“˜ Orthoclase
Formula: K(AlSi3O8)
โ“˜ Perovskite
Formula: CaTiO3
โ“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
โ“˜ 'Psilomelane'
โ“˜ Quartz
Formula: SiO2
Localities: Reported from at least 20 localities in this region.
Description: pseudo-cubic septer amethyst
โ“˜ Quartz var. Amethyst
Formula: SiO2
โ“˜ Quartz var. Chalcedony
Formula: SiO2
โ“˜ Quartz var. Rose Quartz
Formula: SiO2
โ“˜ Quartz var. Sceptre Quartz
Formula: SiO2
โ“˜ Quartz var. Smoky Quartz
Formula: SiO2
โ“˜ Samarskite-(Y)
Formula: YFe3+Nb2O8
โ“˜ 'Scapolite'
โ“˜ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
โ“˜ Scolecite
Formula: CaAl2Si3O10 · 3H2O
โ“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
โ“˜ Sillimanite
Formula: Al2(SiO4)O
โ“˜ Spessartine
Formula: Mn2+3Al2(SiO4)3
โ“˜ Spinel
Formula: MgAl2O4
โ“˜ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
โ“˜ Topaz
Formula: Al2(SiO4)(F,OH)2
โ“˜ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
โ“˜ Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Localities: Reported from at least 6 localities in this region.
โ“˜ 'Wad'
โ“˜ 'Wad var. Cobalt-bearing Wad'
โ“˜ Wollastonite
Formula: Ca3(Si3O9)
โ“˜ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Native Gold1.AA.05Au
โ“˜Native Platinum1.AF.10Pt
โ“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
โ“˜Covellite2.CA.05aCuS
โ“˜'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
โ“˜Chrysoberyl4.BA.05BeAl2O4
โ“˜Magnetite4.BB.05Fe2+Fe3+2O4
โ“˜Spinel4.BB.05MgAl2O4
โ“˜Corundum4.CB.05Al2O3
โ“˜Hematite4.CB.05Fe2O3
โ“˜var. Martite4.CB.05Fe2O3
โ“˜Corundum
var. Ruby
4.CB.05Al2O3
โ“˜var. Sapphire4.CB.05Al2O3
โ“˜var. Padparadscha4.CB.05Al2O3
โ“˜Perovskite4.CC.30CaTiO3
โ“˜Quartz
var. Amethyst
4.DA.05SiO2
โ“˜var. Chalcedony4.DA.05SiO2
โ“˜4.DA.05SiO2
โ“˜var. Rose Quartz4.DA.05SiO2
โ“˜var. Smoky Quartz4.DA.05SiO2
โ“˜var. Sceptre Quartz4.DA.05SiO2
โ“˜Opal4.DA.10SiO2 ยท nH2O
โ“˜Samarskite-(Y)4.DB.25YFe3+Nb2O8
โ“˜Goethite4.FD.10Fe3+O(OH)
โ“˜Asbolane ?4.FL.30(Ni,Co)2-xMn4+(O,OH)4 ยท nH2O
Group 9 - Silicates
โ“˜Andradite9.AD.25Ca3Fe3+2(SiO4)3
โ“˜Almandine9.AD.25Fe2+3Al2(SiO4)3
โ“˜Spessartine9.AD.25Mn2+3Al2(SiO4)3
โ“˜Zircon9.AD.30Zr(SiO4)
โ“˜Euclase9.AE.10BeAl(SiO4)(OH)
โ“˜Sillimanite9.AF.05Al2(SiO4)O
โ“˜Topaz9.AF.35Al2(SiO4)(F,OH)2
โ“˜Dumortierite9.AJ.10Al(Al2O)(Al2O)2(SiO4)3(BO3)
โ“˜Beryl
var. Aquamarine
9.CJ.05Be3Al2(Si6O18)
โ“˜9.CJ.05Be3Al2(Si6O18)
โ“˜Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
โ“˜Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
โ“˜Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
โ“˜Wollastonite9.DG.05Ca3(Si3O9)
โ“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
โ“˜Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 ยท nH2O
โ“˜Vermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 ยท 8H2O
โ“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
โ“˜Microcline9.FA.30K(AlSi3O8)
โ“˜Orthoclase9.FA.30K(AlSi3O8)
โ“˜Albite9.FA.35Na(AlSi3O8)
โ“˜Scolecite9.GA.05CaAl2Si3O10 ยท 3H2O
Unclassified
โ“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜'Chrysoprase'-
โ“˜'Ferrierite Subgroup'-
โ“˜'Feldspar Group'-
โ“˜'Limonite'-
โ“˜'Monazite Group'-REE(PO4)
โ“˜'Psilomelane'-
โ“˜'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
โ“˜'Wad'-
โ“˜'Feldspar Group
var. Perthite'
-
โ“˜'Fayalite-Forsterite Series'-
โ“˜'Columbite-(Fe)-Columbite-(Mn) Series'-
โ“˜'Scapolite'-
โ“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
โ“˜'K Feldspar'-
โ“˜'Garnet Group'-X3Z2(SiO4)3
โ“˜'Columbite-Tantalite'-
โ“˜'Garnierite'-
โ“˜'Serpentine Subgroup'-D3[Si2O5](OH)4
โ“˜'Melilite Group'-A2M(XSiO7)
โ“˜'Wad
var. Cobalt-bearing Wad'
-
โ“˜'Methane'-CH4

List of minerals for each chemical element

HHydrogen
Hโ“˜ Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Hโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hโ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Hโ“˜ EuclaseBeAl(SiO4)(OH)
Hโ“˜ GoethiteFe3+O(OH)
Hโ“˜ KaoliniteAl2(Si2O5)(OH)4
Hโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hโ“˜ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Hโ“˜ OpalSiO2 · nH2O
Hโ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hโ“˜ ScoleciteCaAl2Si3O10 · 3H2O
Hโ“˜ TopazAl2(SiO4)(F,OH)2
Hโ“˜ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Hโ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Hโ“˜ MethaneCH4
LiLithium
Liโ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Beโ“˜ BerylBe3Al2(Si6O18)
Beโ“˜ ChrysoberylBeAl2O4
Beโ“˜ EuclaseBeAl(SiO4)(OH)
BBoron
Bโ“˜ DumortieriteAl(Al2O)(Al2O)2(SiO4)3(BO3)
Bโ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Bโ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bโ“˜ TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
Cโ“˜ GraphiteC
Cโ“˜ MethaneCH4
OOxygen
Oโ“˜ AlbiteNa(AlSi3O8)
Oโ“˜ Quartz var. AmethystSiO2
Oโ“˜ AndraditeCa3Fe23+(SiO4)3
Oโ“˜ Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Oโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oโ“˜ AlmandineFe32+Al2(SiO4)3
Oโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oโ“˜ BerylBe3Al2(Si6O18)
Oโ“˜ Quartz var. ChalcedonySiO2
Oโ“˜ ChrysoberylBeAl2O4
Oโ“˜ CorundumAl2O3
Oโ“˜ DumortieriteAl(Al2O)(Al2O)2(SiO4)3(BO3)
Oโ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Oโ“˜ EuclaseBeAl(SiO4)(OH)
Oโ“˜ GoethiteFe3+O(OH)
Oโ“˜ HematiteFe2O3
Oโ“˜ KaoliniteAl2(Si2O5)(OH)4
Oโ“˜ MagnetiteFe2+Fe23+O4
Oโ“˜ Hematite var. MartiteFe2O3
Oโ“˜ MicroclineK(AlSi3O8)
Oโ“˜ Monazite GroupREE(PO4)
Oโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oโ“˜ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Oโ“˜ OpalSiO2 · nH2O
Oโ“˜ OrthoclaseK(AlSi3O8)
Oโ“˜ PerovskiteCaTiO3
Oโ“˜ QuartzSiO2
Oโ“˜ Quartz var. Rose QuartzSiO2
Oโ“˜ Corundum var. RubyAl2O3
Oโ“˜ Samarskite-(Y)YFe3+Nb2O8
Oโ“˜ Corundum var. SapphireAl2O3
Oโ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oโ“˜ ScoleciteCaAl2Si3O10 · 3H2O
Oโ“˜ SillimaniteAl2(SiO4)O
Oโ“˜ Quartz var. Smoky QuartzSiO2
Oโ“˜ SpessartineMn32+Al2(SiO4)3
Oโ“˜ SpinelMgAl2O4
Oโ“˜ TopazAl2(SiO4)(F,OH)2
Oโ“˜ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oโ“˜ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Oโ“˜ WollastoniteCa3(Si3O9)
Oโ“˜ ZirconZr(SiO4)
Oโ“˜ Quartz var. Sceptre QuartzSiO2
Oโ“˜ Fayalite-Forsterite Series
Oโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
Oโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oโ“˜ Garnet GroupX3Z2(SiO4)3
Oโ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Oโ“˜ Melilite GroupA2M(XSiO7)
Oโ“˜ Corundum var. PadparadschaAl2O3
FFluorine
Fโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fโ“˜ TopazAl2(SiO4)(F,OH)2
NaSodium
Naโ“˜ AlbiteNa(AlSi3O8)
Naโ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Naโ“˜ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Naโ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Naโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgโ“˜ SpinelMgAl2O4
Mgโ“˜ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Mgโ“˜ Fayalite-Forsterite Series
AlAluminium
Alโ“˜ AlbiteNa(AlSi3O8)
Alโ“˜ AlmandineFe32+Al2(SiO4)3
Alโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alโ“˜ BerylBe3Al2(Si6O18)
Alโ“˜ ChrysoberylBeAl2O4
Alโ“˜ CorundumAl2O3
Alโ“˜ DumortieriteAl(Al2O)(Al2O)2(SiO4)3(BO3)
Alโ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Alโ“˜ EuclaseBeAl(SiO4)(OH)
Alโ“˜ KaoliniteAl2(Si2O5)(OH)4
Alโ“˜ MicroclineK(AlSi3O8)
Alโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alโ“˜ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Alโ“˜ OrthoclaseK(AlSi3O8)
Alโ“˜ Corundum var. RubyAl2O3
Alโ“˜ Corundum var. SapphireAl2O3
Alโ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alโ“˜ ScoleciteCaAl2Si3O10 · 3H2O
Alโ“˜ SillimaniteAl2(SiO4)O
Alโ“˜ SpessartineMn32+Al2(SiO4)3
Alโ“˜ SpinelMgAl2O4
Alโ“˜ TopazAl2(SiO4)(F,OH)2
Alโ“˜ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Alโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alโ“˜ Corundum var. PadparadschaAl2O3
SiSilicon
Siโ“˜ AlbiteNa(AlSi3O8)
Siโ“˜ Quartz var. AmethystSiO2
Siโ“˜ AndraditeCa3Fe23+(SiO4)3
Siโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siโ“˜ AlmandineFe32+Al2(SiO4)3
Siโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siโ“˜ BerylBe3Al2(Si6O18)
Siโ“˜ Quartz var. ChalcedonySiO2
Siโ“˜ DumortieriteAl(Al2O)(Al2O)2(SiO4)3(BO3)
Siโ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Siโ“˜ EuclaseBeAl(SiO4)(OH)
Siโ“˜ KaoliniteAl2(Si2O5)(OH)4
Siโ“˜ MicroclineK(AlSi3O8)
Siโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siโ“˜ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Siโ“˜ OpalSiO2 · nH2O
Siโ“˜ OrthoclaseK(AlSi3O8)
Siโ“˜ QuartzSiO2
Siโ“˜ Quartz var. Rose QuartzSiO2
Siโ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siโ“˜ ScoleciteCaAl2Si3O10 · 3H2O
Siโ“˜ SillimaniteAl2(SiO4)O
Siโ“˜ Quartz var. Smoky QuartzSiO2
Siโ“˜ SpessartineMn32+Al2(SiO4)3
Siโ“˜ TopazAl2(SiO4)(F,OH)2
Siโ“˜ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Siโ“˜ WollastoniteCa3(Si3O9)
Siโ“˜ ZirconZr(SiO4)
Siโ“˜ Quartz var. Sceptre QuartzSiO2
Siโ“˜ Fayalite-Forsterite Series
Siโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siโ“˜ Garnet GroupX3Z2(SiO4)3
Siโ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Siโ“˜ Melilite GroupA2M(XSiO7)
PPhosphorus
Pโ“˜ Monazite GroupREE(PO4)
SSulfur
Sโ“˜ CovelliteCuS
Sโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
Kโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kโ“˜ MicroclineK(AlSi3O8)
Kโ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kโ“˜ OrthoclaseK(AlSi3O8)
CaCalcium
Caโ“˜ AndraditeCa3Fe23+(SiO4)3
Caโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caโ“˜ PerovskiteCaTiO3
Caโ“˜ ScoleciteCaAl2Si3O10 · 3H2O
Caโ“˜ WollastoniteCa3(Si3O9)
Caโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiโ“˜ PerovskiteCaTiO3
MnManganese
Mnโ“˜ Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
Mnโ“˜ SpessartineMn32+Al2(SiO4)3
Mnโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Feโ“˜ AndraditeCa3Fe23+(SiO4)3
Feโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feโ“˜ AlmandineFe32+Al2(SiO4)3
Feโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feโ“˜ GoethiteFe3+O(OH)
Feโ“˜ HematiteFe2O3
Feโ“˜ MagnetiteFe2+Fe23+O4
Feโ“˜ Hematite var. MartiteFe2O3
Feโ“˜ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Feโ“˜ Samarskite-(Y)YFe3+Nb2O8
Feโ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Feโ“˜ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Feโ“˜ Fayalite-Forsterite Series
Feโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
CoCobalt
Coโ“˜ Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
NiNickel
Niโ“˜ Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2O
CuCopper
Cuโ“˜ CovelliteCuS
Cuโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
YYttrium
Yโ“˜ Samarskite-(Y)YFe3+Nb2O8
ZrZirconium
Zrโ“˜ ZirconZr(SiO4)
NbNiobium
Nbโ“˜ Samarskite-(Y)YFe3+Nb2O8
Nbโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
SbAntimony
Sbโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
PtPlatinum
Ptโ“˜ Native PlatinumPt
AuGold
Auโ“˜ Native GoldAu

Fossils

There are 1 fossil locality from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences1
Youngest Fossil Listed89.3 Ma (Late/Upper Cretaceous)
Oldest Fossil Listed93.5 Ma (Late/Upper Cretaceous)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Hourcquia
genus
Animalia : Mollusca : Cephalopoda : Hourcquia93.5 - 89.3 Ma
Late/Upper Cretaceous
Fossil LocalitiesClick to show 1 fossil locality

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Alaotra-Mangoro
Wikidata ID:Q1352996
GeoNames ID:7670851

Localities in this Region

Other Regions, Features and Areas that Intersect

AfricaContinent
African Plate
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.
 
and/or  
Mindat.orgยฎ is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindatยฎ and mindat.orgยฎ are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are ยฉ OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833โ€“844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 14, 2026 05:29:09 Page updated: September 9, 2026 16:28:10
Go to top of page