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Zazafotsy Commune, Ihosy District, Ihorombe, Madagascari
Regional Level Types
Zazafotsy CommuneCommune
Ihosy DistrictDistrict
IhorombeRegion
MadagascarCountry

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Name(s) in local language(s):Kaominin'i Zazafotsy, Distrikan' Ihosy, Faritra Ihorombe, Faritanin'i Fianarantsoa, Madagasikara
Neighbouring regions:
Locality type:Commune


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Standard Detailed Strunz Dana 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

8 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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 Diagram

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Arligue photo & specimen ( ex- Jean Behier specimen)
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Reference: Arligue photo & specimen ( ex- Jean Behier specimen)
'Biotite'
Reference: Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.
Corundum
Formula: Al2O3
Reference: Pezzotta F. (2005): Rubini e zaffiri. Corindoni policromi di Amboarohy, Ihosy, Madagascar. Rivista Mineralogica Italiana,30 (2): 116-124
Corundum var: Ruby
Formula: Al2O3
Reference: Pezzotta F. (2005): Rubini e zaffiri. Corindoni policromi di Amboarohy, Ihosy, Madagascar. Rivista Mineralogica Italiana,30 (2): 116-124
Corundum var: Sapphire
Formula: Al2O3
Reference: Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.
'K Feldspar'
Reference: Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Tomasz Praszkier / Spirifer minerals photo
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Jordi Fabre
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Besairie, H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive, 34, p 309
Sapphirine
Formula: Mg4(Mg3Al9)O4[Si3Al9O36]
Reference: Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.
Sillimanite
Formula: Al2(SiO4)O
Reference: Peter Slootweg photo and specimen, photo-640593
Spinel
Formula: MgAl2O4
Reference: Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
var: Ruby4.CB.05Al2O3
var: Sapphire4.CB.05Al2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Spinel4.BB.05MgAl2O4
Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
var: Heliodor9.CJ.05Be3Al2(Si6O18)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Sapphirine9.DH.45Mg4(Mg3Al9)O4[Si3Al9O36]
Sillimanite9.AF.05Al2(SiO4)O
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Biotite'-
'Garnet Group'-X3Z2(SiO4)3
'K Feldspar'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Sillimanite52.2.2a.1Al2(SiO4)O
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Sapphirine69.2.1b.1Mg4(Mg3Al9)O4[Si3Al9O36]
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
Beryl
var: Heliodor
-Be3Al2(Si6O18)
'Biotite'-
Corundum
var: Ruby
-Al2O3
var: Sapphire-Al2O3
'Garnet Group'-X3Z2(SiO4)3
'K Feldspar'-

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Be Beryl (var: Heliodor)Be3Al2(Si6O18)
Be BerylBe3Al2(Si6O18)
OOxygen
O Corundum (var: Ruby)Al2O3
O PhlogopiteKMg3(AlSi3O10)(OH)2
O CorundumAl2O3
O MuscoviteKAl2(AlSi3O10)(OH)2
O Corundum (var: Sapphire)Al2O3
O SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
O Garnet GroupX3Z2(SiO4)3
O SpinelMgAl2O4
O Beryl (var: Heliodor)Be3Al2(Si6O18)
O MagnetiteFe2+Fe23+O4
O SillimaniteAl2(SiO4)O
O BerylBe3Al2(Si6O18)
MgMagnesium
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Mg SpinelMgAl2O4
AlAluminium
Al Corundum (var: Ruby)Al2O3
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al CorundumAl2O3
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Corundum (var: Sapphire)Al2O3
Al SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Al SpinelMgAl2O4
Al Beryl (var: Heliodor)Be3Al2(Si6O18)
Al SillimaniteAl2(SiO4)O
Al BerylBe3Al2(Si6O18)
SiSilicon
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Si Garnet GroupX3Z2(SiO4)3
Si Beryl (var: Heliodor)Be3Al2(Si6O18)
Si SillimaniteAl2(SiO4)O
Si BerylBe3Al2(Si6O18)
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Fe MagnetiteFe2+Fe23+O4

Geochronology

Mineralization age: Furongian : 494 ± 5 Ma

Important note: This table is based only on rock and mineral ages recorded below 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
  Cambrian
   Furongian
ⓘ Biotite494 ± 5 MaZazafotsy Quarry (Amboarohy), Zazafotsy Commune, Ihosy District, Ihorombe, Madagascar

Localities in this Region
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