Mineralization in the Shamsabad manganese-bearing iron deposit occurs as stratabound in dark gray, thickbedded to massive orbitolina-bearing limestones with a lower Cretaceous age. The Shamsabad ferromanganese deposit is
deposited from submarine-hydrothermal fluids.

Stratabound Fe-Mn mineralization occurs in the Shamsabad deposit in gray, dark, thick-bedded, Orbitolina-bearing limestones of Lower Cretaceous age. The geometry of the orebody is a large lens, 1200 m long and 250 m thick. It is often conformable and sharply separated from its lower and upper sedimentary beds. Three carbonate, siliceous and high grade Fe-Mn ore types are considered for mineralization. Proven and probable ore reserves are estimated at 48.7 and 300 million tons, respectively. The average grade of the ore is estimated to be 40% Fe and 3% Mn.
Originally, galena and pyrite formed under reducing conditions. Then, when the conditions became oxidizing, Fe and Mn oxides and hydroxide minerals such as hematite (Hm1), goethite (Gt1), pyrolusite (Pl1), todorokite and coronadite formed. Quartz was deposited along with sulfide and oxide minerals under both reducing and oxidizing conditions. Mineralization occurred mainly in the oxide phase. Weathering and supergene processes caused the alteration of oxide and sulfide minerals, resulting in the formation of minerals such as hematite (Hm2), goethite (Gt2), pyrolusite (Pl2), malachite, lepidocrocite, and rhodochrosite. Exogenous processes also caused the dissolution of carbonate rocks and the formation of secondary calcite in fractures and cavities within the ore.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Iron

ⓘ Manganese

Mineral List

15 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Ehya, Farhad; Marbouti, Zohreh (2021) The Shamsabad Fe-Mn deposit, Markazi province, Iran: LA-ICP-MS and sulfur isotopic geochemistry. Ore Geology Reviews, 139. doi:10.1016/j.oregeorev.2021.104555

ⓘ Albite var. Oligoclase

Formula: (Na,Ca)[Al(Si,Al)Si₂O₈]

References:

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

References:

ⓘ Calcite

Formula: CaCO₃

References:

Marouti, Zohreh; Ehya, Farhad; Rostami Paydar, Ghodratollah; Maleki Kheymehsari, Sara (2021) Geochemistry and the origin of the Shamsabad manganese-bearing iron deposit, Markazi Province. Advanced Applied Geology, 11 (3). 536-556

ⓘ 'Chlorite Group'

References:

ⓘ Coronadite

Formula: Pb(Mn⁴⁺₆Mn³⁺₂)O₁₆

References:

ⓘ Dolomite

Formula: CaMg(CO₃)₂

References:

ⓘ 'Feldspar Group'

References:

ⓘ Galena

Formula: PbS

References:

ⓘ Goethite

Formula: Fe³⁺O(OH)

References:

ⓘ Hematite

Formula: Fe₂O₃

References:

ⓘ Lepidocrocite

Formula: Fe³⁺O(OH)

References:

ⓘ 'Limonite'

References:

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ Pyrite

Formula: FeS₂

References:

ⓘ Pyrolusite

Formula: Mn⁴⁺O₂

References:

ⓘ Quartz

Formula: SiO₂

References:

ⓘ Rhodochrosite

Formula: MnCO₃

References:

ⓘ Todorokite

Formula: (Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Pyrolusite	4.DB.05	Mn⁴⁺O₂
ⓘ	Coronadite	4.DK.05a	Pb(Mn⁴⁺₆Mn³⁺₂)O₁₆
ⓘ	Todorokite	4.DK.10	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
ⓘ	Lepidocrocite	4.FE.15	Fe³⁺O(OH)
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Rhodochrosite	5.AB.05	MnCO₃
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
Group 9 - Silicates
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	var. Oligoclase	9.FA.35	(Na,Ca)[Al(Si,Al)Si₂O₈]
Unclassified
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Chlorite Group'	-
ⓘ	'Feldspar Group'	-
ⓘ	'Limonite'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Lepidocrocite	Fe³⁺O(OH)
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Rhodochrosite	MnCO₃
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Coronadite	Pb(Mn₆⁴⁺Mn₂³⁺)O₁₆
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Lepidocrocite	Fe³⁺O(OH)
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
O	ⓘ Pyrolusite	Mn⁴⁺O₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rhodochrosite	MnCO₃
O	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Na	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Al	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
S	Sulfur
S	ⓘ Galena	PbS
S	ⓘ Pyrite	FeS₂
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Ca	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mn	Manganese
Mn	ⓘ Coronadite	Pb(Mn₆⁴⁺Mn₂³⁺)O₁₆
Mn	ⓘ Pyrolusite	Mn⁴⁺O₂
Mn	ⓘ Rhodochrosite	MnCO₃
Mn	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Fe	Iron
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Lepidocrocite	Fe³⁺O(OH)
Fe	ⓘ Pyrite	FeS₂
Cu	Copper
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Sr	Strontium
Sr	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Ba	Barium
Ba	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Pb	Lead
Pb	ⓘ Coronadite	Pb(Mn₆⁴⁺Mn₂³⁺)O₁₆
Pb	ⓘ Galena	PbS

Other Regions, Features and Areas containing this locality

AsiaContinent

Zagros MountainsMountain Range

Eurasian PlateTectonic Plate

Indian Plate (India Plate)

Sanandaj-Sirjan ZoneVolcanic Arc

Iran

Malayer-Esfahan Metallogenic BeltMineral Belt

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.

References

[1]Marouti, Zohreh; Ehya, Farhad; Rostami Paydar, Ghodratollah; Maleki Kheymehsari, Sara (2021) Geochemistry and the origin of the Shamsabad manganese-bearing iron deposit, Markazi Province. Advanced Applied Geology, 11 (3). 536-556

[2]Ehya, Farhad; Marbouti, Zohreh (2021) The Shamsabad Fe-Mn deposit, Markazi province, Iran: LA-ICP-MS and sulfur isotopic geochemistry. Ore Geology Reviews, 139. doi:10.1016/j.oregeorev.2021.104555

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Shamsabad Fe-Mn deposit, Arak County, Markazi Province, IraniRegional Level TypesShamsabad Fe-Mn depositDeposit Arak CountyCounty Markazi ProvinceProvince IranCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Commodity List

Mineral List

Rock Types Recorded

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Shamsabad Fe-Mn deposit, Arak County, Markazi Province, Iran i
Regional Level Types
Shamsabad Fe-Mn deposit Deposit
Arak County County
Markazi Province Province
Iran Country