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Maromby, Amboasary Sud District, Anosy, Madagascari
Regional Level Types
MarombyCommune
Amboasary Sud DistrictDistrict
AnosyRegion
MadagascarCountry

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PhotosMapsSearch
Type:
Mindat Locality ID:
27795
Long-form identifier:
mindat:1:2:27795:1
GUID (UUID V4):
0
Other Languages:
French:
Maromby, Amboasary Sud, Anosy, Madagascar
Italian:
Maromby, Amboasary Sud, regione di Anosy, Madagascar
Malagasy:
Kaominin'i Maromby, Distrikan' Amboasary Atsimo, Faritr' Anosy, Madagasikara
Dutch:
Maromby, Amboasary Sud, Anosy, Madagaskar


Maromby is a town and commune in Madagascar. It belongs to the district of Amboasary Sud, which is a part of Anosy Region.

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

26 valid minerals. 1 (TL) - type locality of 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:

'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
Anorthite
Formula: Ca(Al2Si2O8)
Description: As common mineral in the skarn but also as colorless transparent 0,5 mm grains or as whitish crystals as inclusions or filling fissures in sapphires. The plagioclase inclusions were showed to be of an anorthite composition (Schwartz and Petsch 1996)
'Apatite'
Formula: Ca5(PO4)3A
Baddeleyite
Formula: ZrO2
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Description: In leptynite
Calcite
Formula: CaCO3
Localities: Reported from at least 12 localities in this region.
'Chevkinite Group'
Description: J.Behier (1963) uses the name and spelling "tscheffkinite".
'Clinopyroxene Subgroup'
Corundum
Formula: Al2O3
Localities: Reported from at least 7 localities in this region.
Corundum var. Ruby
Formula: Al2O3
Corundum var. Sapphire
Formula: Al2O3
'Davidite'
Description: J.Behier (1963) uses the variety name "mazuvite".
Diaspore
Formula: AlO(OH)
Diopside
Formula: CaMgSi2O6
Localities: Reported from at least 8 localities in this region.
Dolomite
Formula: CaMg(CO3)2
'Feldspar Group'
Fluorapatite
Formula: Ca5(PO4)3F
Fluorite
Formula: CaF2
Fluorophlogopite
Formula: KMg3(Si3Al)O10F2
Forsterite
Formula: Mg2(SiO4)
Grandidierite ?
Formula: (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Description: McKie (1965) studies a grandidierite in a grandidierite-biotite rock labelled as originates from Sakatelo, Madagascar (Iventory number 195716 in the collection of the University of Cambridge Mineralogical Museum). The locality name is with a high grade of certainty a misnomer, perhaps for Sakoatelo. But it has not been confirmed if Sakotatelo deposit is the locality.
Hedenbergite
Formula: CaFe2+Si2O6
Colour: greenish brown
Description: As grains as inclusions in sapphire
Hibonite (TL)
Formula: CaAl12O19
Localities: Reported from at least 8 localities in this region.
Description: per correspondence with Knut Edvard: The TL produced just a few specimens in the year of discovery (also an eluvial locality ). When lacking exact locality data the Madagascar hibonite specimens are often erroneously labeled and sold as coming from Esiva, often being the only locality referred to in textbooks.
Humite ?
Formula: Mg7(SiO4)3F2
Description: A Humite group mineral found i marbles were visually identified as Humite. It is impossible by visual means only to distinguish between different members of the Humite Farouk. Analyzed Humite group minerals from the same area is identified by xrd as clinohumite.
'Humite Group'
'K Feldspar'
'Mica Group'
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Localities: Reported from at least 14 localities in this region.
'Pyroxene Group'
Formula: ADSi2O6
Quartz
Formula: SiO2
Quartz var. Chalcedony
Formula: SiO2
Rutile
Formula: TiO2
Description: As microscopic inclusions in sapphire as oriented needlelike crystals
'Scapolite'
Localities: Reported from at least 13 localities in this region.
'Scapolite var. Wernerite'
Spinel
Formula: MgAl2O4
Localities: Reported from at least 10 localities in this region.
'Spinel Subgroup'
Formula: A2+D3+2O4
Thorianite
Formula: ThO2
Localities: Reported from at least 23 localities in this region.
Thorianite var. Uranothorianite
Formula: (Th,U)O2
Thorite
Formula: Th(SiO4)
Thorite var. Thorogummite
Formula: (Th,U)(SiO4)1-x(OH)4x
Titanite
Formula: CaTi(SiO4)O
Localities: Reported from at least 8 localities in this region.
Wollastonite
Formula: Ca3(Si3O9)
Description: A large pale yellow, singel, 34 cm long crystal in the Collection of Musée de Minéralogie de l'Ecole des Mines, Paris is labelled "Belafa, Madagascar".
Zircon
Formula: Zr(SiO4)
Zirconolite
Formula: CaZrTi2O7

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Spinel4.BB.05MgAl2O4
Corundum4.CB.05Al2O3
var. Ruby4.CB.05Al2O3
var. Sapphire4.CB.05Al2O3
Hibonite (TL)4.CC.45CaAl12O19
Quartz
var. Chalcedony
4.DA.05SiO2
4.DA.05SiO2
Rutile4.DB.05TiO2
Baddeleyite4.DE.35ZrO2
Zirconolite4.DH.30CaZrTi2O7
Thorianite4.DL.05ThO2
var. Uranothorianite4.DL.05(Th,U)O2
Diaspore4.FD.10AlO(OH)
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Forsterite9.AC.05Mg2(SiO4)
Thorite9.AD.30Th(SiO4)
var. Thorogummite9.AD.30(Th,U)(SiO4)1-x(OH)4x
Zircon9.AD.30Zr(SiO4)
Humite ?9.AF.50Mg7(SiO4)3F2
Titanite9.AG.15CaTi(SiO4)O
Grandidierite ?9.AJ.05(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Diopside9.DA.15CaMgSi2O6
Hedenbergite9.DA.15CaFe2+Si2O6
Wollastonite9.DG.05Ca3(Si3O9)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Fluorophlogopite9.EC.20KMg3(Si3Al)O10F2
Anorthite9.FA.35Ca(Al2Si2O8)
Unclassified
'Amphibole Supergroup'-AB2C5(T8O22)W2
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Davidite'-
'Feldspar Group'-
'Scapolite
var. Wernerite'
-
'Mica Group'-
'Clinopyroxene Subgroup'-
'Scapolite'-
'K Feldspar'-
'Pyroxene Group'-ADSi2O6
'Apatite'-Ca5(PO4)3A
'Humite Group'-
'Chevkinite Group'-
'Spinel Subgroup'-A2+D3+2O4

List of minerals for each chemical element

HHydrogen
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H DiasporeAlO(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
BBoron
B Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C Scapolite var. Wernerite
OOxygen
O Amphibole SupergroupAB2C5(T8O22)W2
O AnorthiteCa(Al2Si2O8)
O BaddeleyiteZrO2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O CalciteCaCO3
O Quartz var. ChalcedonySiO2
O CorundumAl2O3
O DiasporeAlO(OH)
O DiopsideCaMgSi2O6
O DolomiteCaMg(CO3)2
O FluorapatiteCa5(PO4)3F
O ForsteriteMg2(SiO4)
O Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
O HedenbergiteCaFe2+Si2O6
O HiboniteCaAl12O19
O HumiteMg7(SiO4)3F2
O MuscoviteKAl2(AlSi3O10)(OH)2
O PhlogopiteKMg3(AlSi3O10)(OH)2
O QuartzSiO2
O Corundum var. RubyAl2O3
O RutileTiO2
O Corundum var. SapphireAl2O3
O SpinelMgAl2O4
O ThorianiteThO2
O ThoriteTh(SiO4)
O Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
O TitaniteCaTi(SiO4)O
O Thorianite var. Uranothorianite(Th,U)O2
O Scapolite var. Wernerite
O WollastoniteCa3(Si3O9)
O ZirconZr(SiO4)
O ZirconoliteCaZrTi2O7
O Pyroxene GroupADSi2O6
O FluorophlogopiteKMg3(Si3Al)O10F2
O ApatiteCa5(PO4)3A
O Spinel SubgroupA2+D23+O4
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F HumiteMg7(SiO4)3F2
F FluorophlogopiteKMg3(Si3Al)O10F2
NaSodium
Na Scapolite var. Wernerite
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mg DiopsideCaMgSi2O6
Mg DolomiteCaMg(CO3)2
Mg ForsteriteMg2(SiO4)
Mg Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Mg HumiteMg7(SiO4)3F2
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SpinelMgAl2O4
Mg FluorophlogopiteKMg3(Si3Al)O10F2
AlAluminium
Al AnorthiteCa(Al2Si2O8)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al CorundumAl2O3
Al DiasporeAlO(OH)
Al Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Al HiboniteCaAl12O19
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al Corundum var. RubyAl2O3
Al Corundum var. SapphireAl2O3
Al SpinelMgAl2O4
Al Scapolite var. Wernerite
Al FluorophlogopiteKMg3(Si3Al)O10F2
SiSilicon
Si AnorthiteCa(Al2Si2O8)
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si Quartz var. ChalcedonySiO2
Si DiopsideCaMgSi2O6
Si ForsteriteMg2(SiO4)
Si Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Si HedenbergiteCaFe2+Si2O6
Si HumiteMg7(SiO4)3F2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si QuartzSiO2
Si ThoriteTh(SiO4)
Si Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Si TitaniteCaTi(SiO4)O
Si Scapolite var. Wernerite
Si WollastoniteCa3(Si3O9)
Si ZirconZr(SiO4)
Si Pyroxene GroupADSi2O6
Si FluorophlogopiteKMg3(Si3Al)O10F2
PPhosphorus
P FluorapatiteCa5(PO4)3F
P ApatiteCa5(PO4)3A
ClChlorine
Cl Scapolite var. Wernerite
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
K FluorophlogopiteKMg3(Si3Al)O10F2
CaCalcium
Ca AnorthiteCa(Al2Si2O8)
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca DolomiteCaMg(CO3)2
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca HedenbergiteCaFe2+Si2O6
Ca HiboniteCaAl12O19
Ca TitaniteCaTi(SiO4)O
Ca Scapolite var. Wernerite
Ca WollastoniteCa3(Si3O9)
Ca ZirconoliteCaZrTi2O7
Ca ApatiteCa5(PO4)3A
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
Ti ZirconoliteCaZrTi2O7
FeIron
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Fe HedenbergiteCaFe2+Si2O6
ZrZirconium
Zr BaddeleyiteZrO2
Zr ZirconZr(SiO4)
Zr ZirconoliteCaZrTi2O7
ThThorium
Th ThorianiteThO2
Th ThoriteTh(SiO4)
Th Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Th Thorianite var. Uranothorianite(Th,U)O2
UUranium
U Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
U Thorianite var. Uranothorianite(Th,U)O2

Geochronology

Mineralization age: Paleoproterozoic to Ordovician : 2057 ± 20 Ma to 480 ± 20 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Paleozoic
  Ordovician
   Early/Lower Ordovician
ⓘ Thorianite480 ± 20 MaSoafia thorianite deposit, Maromby, Amboasary Sud District, Anosy, Madagascar
    
   
  Cambrian
   Miaolingian
ⓘ Biotite500 ± 6 Ma
    
    
   Terreneuvian
ⓘ Phlogopite534 ± 30 MaSoafia thorianite deposit, Maromby, Amboasary Sud District, Anosy, Madagascar
    
 
Precambrian
 Proterozoic
  Paleoproterozoic
   Rhyacian
ⓘ Leptynite2057 ± 20 Ma

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 Listed112 Ma (Early/Lower Cretaceous)
Oldest Fossil Listed122 Ma (Early/Lower Cretaceous)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Phylloceras (Hypophylloceras) seresitense vohipalense
subspecies
Animalia : Mollusca : Cephalopoda : Phylloceratida : Phylloceratidae : Phylloceras : Phylloceras (Hypophylloceras) seresitense vohipalense122.46 - 112.03 Ma
Early/Lower Cretaceous
Fossil LocalitiesClick to show 1 fossil locality

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Maromby
Wikidata ID:Q3294597
GeoNames ID:11927627

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.
 
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