Itremo massif, Ambatofinandrahana District, Amoron'i Mania, Madagascari
Regional Level Types | |
---|---|
Itremo massif | Massif |
Ambatofinandrahana District | District |
Amoron'i Mania | Region |
Madagascar | Country |
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Latitude & Longitude (WGS84):
20° South , 46° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~9km
Type:
KΓΆppen climate type:
Mindat Locality ID:
108196
Long-form identifier:
mindat:1:2:108196:4
GUID (UUID V4):
0bb35598-d7a5-4ebd-9b74-9cf03b12b26f
Other Languages:
Malagasy:
Tangorombohitr'Itremo, Distrikan' Ambatofinandrahana, Faritra Amoron'i Mania, Madagasikara
NOTE:
The large Itremo massif is divided administratively into 3 different communes (kaominina): Itremo Commune, Mangatabohangy Commune and Amborompotsy Commune. Below, the localitites located in Itremo and Mangatabohangy Communes are listed.
A large part of the massif, an area of 273 kmΒ² has recently (2003) become an protected area due to its many diverse and rare plants.
" In Ambatofinandrahana there is a number of quartz localities (thousands of quartz veins) but majority of specimens in this area are mined vicinity of Itremo village. This big village is situated just before entering to scattered Itremo Massif - metamorphosed sedimentary rocks, which today are quartzites and marbles. In this massif there are thousands of quartz veins (hydrothermal low temperature) with very varied quartz crystals. In some veins there is simple rock crystal (crystals up to 70 cm), in others there are so-called pineapple quartz. Some veins contain quartz with bubbles, hollandite or inclusions of a greenish micaeous mineral.
People from Itremo make irregular mining in their neighbourhood (around 15 km). Other areas of Itremo Massif are almost completely unexplored.
Majority of quartz from Madagascar (even if not labelled like this) is from Itremo massif". Tomasz Praszkier commentary see http://www.mindat.org/mesg-95-131671.html
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities18 valid minerals. 2 erroneous literature entries.
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
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
β Amblygonite Formula: LiAl(PO4)F Localities: |
β 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) Localities: Habit: small grains Colour: yellow |
β Augelite Formula: Al2(PO4)(OH)3 Localities: |
β Berlinite Formula: AlPO4 |
β Beryl Formula: Be3Al2(Si6O18) |
β Formula: K(MgFe3+◻)(Si4O10)(OH)2 Locality: Ihovitra (Anovitra; Iovitra; Ivohitra), Itremo, Ambatofinandrahana District, Amoron'i Mania, Madagascar - erroneously reported Description: The green inclusions in the quartz crystals are showed to be fuchsite, see reference unnder that entry. |
β Celestine Formula: SrSO4 Localities: |
β ' Locality: Ihovitra (Anovitra; Iovitra; Ivohitra), Itremo, Ambatofinandrahana District, Amoron'i Mania, Madagascar - erroneously reported |
β Dumortierite Formula: Al(Al2O)(Al2O)2(SiO4)3(BO3) Localities: Habit: fibrous masses emballed in quartz Colour: lavender blue to blackblue References: |
β 'Feldspar Group' |
β Goyazite Formula: SrAl3(PO4)(PO3OH)(OH)6 Localities: Habit: as a rim of grains around lazulite |
β Hematite Formula: Fe2O3 References: |
β Kornerupine Formula: Mg3Al6(Si,Al,B)5O21(OH) |
β Kyanite Formula: Al2(SiO4)O Localities: |
β Lazulite Formula: MgAl2(PO4)2(OH)2 Localities: Habit: as inclusions in massive quartz Colour: blue |
β Muscovite Formula: KAl2(AlSi3O10)(OH)2 Localities: |
β Muscovite var. Fuchsite Formula: K(Al,Cr)3Si3O10(OH)2 Localities: |
β 'Pumpellyite Subgroup' Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
β Quartz Formula: SiO2 Localities: Riampotsy, Mangataboahangy, Ambatofinandrahana District, Amoron'i Mania, Madagascar Inasana, Itremo, Ambatofinandrahana District, Amoron'i Mania, Madagascar Ihovitra (Anovitra; Iovitra; Ivohitra), Itremo, Ambatofinandrahana District, Amoron'i Mania, Madagascar Tsiambenana Quarry, Itremo, Ambatofinandrahana District, Amoron'i Mania, Madagascar Itremo massif, Ambatofinandrahana District, Amoron'i Mania, Madagascar |
β Quartz var. Milky Quartz Formula: SiO2 References: |
β Rutile Formula: TiO2 |
β Sillimanite Formula: Al2(SiO4)O |
β Spessartine Formula: Mn2+3Al2(SiO4)3 |
β Svanbergite Formula: SrAl3(PO4)(SO4)(OH)6 |
β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z Localities: Colour: black Description: "tourmaline noire" |
β Trolleite Formula: Al4(PO4)3(OH)3 Localities: Habit: small grains Description: Found in the grain boundary between goyazite and lazulite |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
---|---|---|---|
β | Hematite | 4.CB.05 | Fe2O3 |
β | Quartz | 4.DA.05 | SiO2 |
β | var. Milky Quartz | 4.DA.05 | SiO2 |
β | Rutile | 4.DB.05 | TiO2 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
β | Celestine | 7.AD.35 | SrSO4 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
β | Amblygonite | 8.BB.05 | LiAl(PO4)F |
β | Augelite | 8.BE.05 | Al2(PO4)(OH)3 |
β | Berlinite | 8.AA.05 | AlPO4 |
β | Goyazite | 8.BL.10 | SrAl3(PO4)(PO3OH)(OH)6 |
β | Lazulite | 8.BB.40 | MgAl2(PO4)2(OH)2 |
β | Svanbergite | 8.BL.05 | SrAl3(PO4)(SO4)(OH)6 |
β | Trolleite | 8.BB.45 | Al4(PO4)3(OH)3 |
Group 9 - Silicates | |||
β | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
β | Celadonite ? | 9.EC.15 | K(MgFe3+β»)(Si4O10)(OH)2 |
β | Dumortierite | 9.AJ.10 | Al(Al2O)(Al2O)2(SiO4)3(BO3) |
β | Kornerupine | 9.BJ.50 | Mg3Al6(Si,Al,B)5O21(OH) |
β | Kyanite | 9.AF.15 | Al2(SiO4)O |
β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
β | var. Fuchsite | 9.EC.15 | K(Al,Cr)3Si3O10(OH)2 |
β | Sillimanite | 9.AF.05 | Al2(SiO4)O |
β | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
Unclassified Minerals, Rocks, etc. | |||
β | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
β | 'Chlorite Group' ? | - | |
β | 'Feldspar Group' | - | |
β | 'Pumpellyite Subgroup' | - | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Apatite | Ca5(PO4)3(Cl/F/OH) |
H | β Lazulite | MgAl2(PO4)2(OH)2 |
H | β Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
H | β Muscovite var. Fuchsite | K(Al,Cr)3Si3O10(OH)2 |
H | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
H | β Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
H | β Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
H | β Augelite | Al2(PO4)(OH)3 |
H | β Trolleite | Al4(PO4)3(OH)3 |
H | β Celadonite | K(MgFe3+◻)(Si4O10)(OH)2 |
Li | Lithium | |
Li | β Amblygonite | LiAl(PO4)F |
Be | Beryllium | |
Be | β Beryl | Be3Al2(Si6O18) |
B | Boron | |
B | β Dumortierite | Al(Al2O)(Al2O)2(SiO4)3(BO3) |
B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
B | β Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
O | Oxygen | |
O | β Beryl | Be3Al2(Si6O18) |
O | β Dumortierite | Al(Al2O)(Al2O)2(SiO4)3(BO3) |
O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
O | β Apatite | Ca5(PO4)3(Cl/F/OH) |
O | β Lazulite | MgAl2(PO4)2(OH)2 |
O | β Kyanite | Al2(SiO4)O |
O | β Sillimanite | Al2(SiO4)O |
O | β Quartz | SiO2 |
O | β Spessartine | Mn32+Al2(SiO4)3 |
O | β Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
O | β Muscovite var. Fuchsite | K(Al,Cr)3Si3O10(OH)2 |
O | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
O | β Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
O | β Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
O | β Berlinite | AlPO4 |
O | β Augelite | Al2(PO4)(OH)3 |
O | β Celestine | SrSO4 |
O | β Trolleite | Al4(PO4)3(OH)3 |
O | β Rutile | TiO2 |
O | β Amblygonite | LiAl(PO4)F |
O | β Quartz var. Milky Quartz | SiO2 |
O | β Hematite | Fe2O3 |
O | β Celadonite | K(MgFe3+◻)(Si4O10)(OH)2 |
F | Fluorine | |
F | β Apatite | Ca5(PO4)3(Cl/F/OH) |
F | β Amblygonite | LiAl(PO4)F |
Mg | Magnesium | |
Mg | β Lazulite | MgAl2(PO4)2(OH)2 |
Mg | β Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
Mg | β Celadonite | K(MgFe3+◻)(Si4O10)(OH)2 |
Al | Aluminium | |
Al | β Beryl | Be3Al2(Si6O18) |
Al | β Dumortierite | Al(Al2O)(Al2O)2(SiO4)3(BO3) |
Al | β Lazulite | MgAl2(PO4)2(OH)2 |
Al | β Kyanite | Al2(SiO4)O |
Al | β Sillimanite | Al2(SiO4)O |
Al | β Spessartine | Mn32+Al2(SiO4)3 |
Al | β Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
Al | β Muscovite var. Fuchsite | K(Al,Cr)3Si3O10(OH)2 |
Al | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | β Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
Al | β Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
Al | β Berlinite | AlPO4 |
Al | β Augelite | Al2(PO4)(OH)3 |
Al | β Trolleite | Al4(PO4)3(OH)3 |
Al | β Amblygonite | LiAl(PO4)F |
Si | Silicon | |
Si | β Beryl | Be3Al2(Si6O18) |
Si | β Dumortierite | Al(Al2O)(Al2O)2(SiO4)3(BO3) |
Si | β Kyanite | Al2(SiO4)O |
Si | β Sillimanite | Al2(SiO4)O |
Si | β Quartz | SiO2 |
Si | β Spessartine | Mn32+Al2(SiO4)3 |
Si | β Kornerupine | Mg3Al6(Si,Al,B)5O21(OH) |
Si | β Muscovite var. Fuchsite | K(Al,Cr)3Si3O10(OH)2 |
Si | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | β Quartz var. Milky Quartz | SiO2 |
Si | β Celadonite | K(MgFe3+◻)(Si4O10)(OH)2 |
P | Phosphorus | |
P | β Apatite | Ca5(PO4)3(Cl/F/OH) |
P | β Lazulite | MgAl2(PO4)2(OH)2 |
P | β Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
P | β Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
P | β Berlinite | AlPO4 |
P | β Augelite | Al2(PO4)(OH)3 |
P | β Trolleite | Al4(PO4)3(OH)3 |
P | β Amblygonite | LiAl(PO4)F |
S | Sulfur | |
S | β Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
S | β Celestine | SrSO4 |
Cl | Chlorine | |
Cl | β Apatite | Ca5(PO4)3(Cl/F/OH) |
K | Potassium | |
K | β Muscovite var. Fuchsite | K(Al,Cr)3Si3O10(OH)2 |
K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
K | β Celadonite | K(MgFe3+◻)(Si4O10)(OH)2 |
Ca | Calcium | |
Ca | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Ca | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
Ti | Titanium | |
Ti | β Rutile | TiO2 |
Cr | Chromium | |
Cr | β Muscovite var. Fuchsite | K(Al,Cr)3Si3O10(OH)2 |
Mn | Manganese | |
Mn | β Spessartine | Mn32+Al2(SiO4)3 |
Fe | Iron | |
Fe | β Hematite | Fe2O3 |
Fe | β Celadonite | K(MgFe3+◻)(Si4O10)(OH)2 |
Sr | Strontium | |
Sr | β Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
Sr | β Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
Sr | β Celestine | SrSO4 |
Localities in this Region
- Amoron'i Mania
- Ambatofinandrahana District
- Itremo
- Mangataboahangy
- Ambatofinandrahana District
Other Regions, Features and Areas that Intersect
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Itremo massif, Ambatofinandrahana District, Amoron'i Mania, Madagascar