Iron oxide-apatite (IOA) deposit (apatite-magnetite), hosted by Early Cambrian volcano-sedimentary rhyolitic rocks. Diabase dykes cross-cut both host rocks and the orebodies.
Mined since the 1970s.

Located 12 km northeast of the town of Bafq and 124 km southeast of Yazd.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

15 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

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

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Alphabetical List Tree Diagram

ⓘ 'Dolerite'

ⓘ Rhyolite

Detailed Mineral List:

ⓘ Actinolite

Formula: ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂

Reference: Khalegh Khoshnoodi, Mehrdad Behzadi, Mohammad Gannadi-Maragheh, Mohammad Yazdi (2017): Alkali Metasomatism and Th-REE Mineralization in the Choghart deposit, Bafq district, Central Iran. Geologia Croatica 70, 53-69.

ⓘ Albite

Formula: Na(AlSi₃O₈)

ⓘ Augite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

ⓘ Calcite

Formula: CaCO₃

ⓘ Chalcopyrite

Formula: CuFeS₂

ⓘ ~~Davidite-(Ce)~~

Formula: Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈

Description: Submicroscopic crystals of an unusual complex REE-rich iron-titanate from the apatite-magnetite ore of the Chogart mine/Iran were proved to be davidite. Average calculated unit-cell composition from microprobe analyses, normalized to 38 oxygens, is (Ce0.38, La0.35) Σ0.73 (Y0.69, Ti13,20, Fe6,33, V0.43, Mn0.21, Mg0.09) Σ20.95O38. The mineral appears as traces and as small euhedral crystals representing a late-stage mineral phase in minute open spaces and finest fractures of the magnetite ore. The mineral is opaque and behaves totally isotropic in the reflected light. The reflectance is 18-6 % in air (546 nm)

ⓘ Davidite-(La)

Formula: La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈

Reference: Pavel M. Kartashov analytical data (2008)

ⓘ Diopside

Formula: CaMgSi₂O₆

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Reference: Farahnaz Daliran, Tarkian M., Fatemeh TavafF-Djalali (1994) A new occurrence of davidite from the apatite-magnetite ore deposit of Chogart, Bafg district, East Central Iran, - Neues Jahrbuch für Mineralogie Monatshefte, No3, pp. 138-144.; Khalegh Khoshnoodi, Mehrdad Behzadi, Mohammad Gannadi-Maragheh, Mohammad Yazdi (2017): Alkali Metasomatism and Th-REE Mineralization in the Choghart deposit, Bafq district, Central Iran. Geologia Croatica 70, 53-69.

ⓘ Microcline

Formula: K(AlSi₃O₈)

Reference: Pavel M. Kartashov analytical data (2008); Khalegh Khoshnoodi, Mehrdad Behzadi, Mohammad Gannadi-Maragheh, Mohammad Yazdi (2017): Alkali Metasomatism and Th-REE Mineralization in the Choghart deposit, Bafq district, Central Iran. Geologia Croatica 70, 53-69.

ⓘ Orthoclase

Formula: K(AlSi₃O₈)

ⓘ Pyrite

Formula: FeS₂

ⓘ Rutile

Formula: TiO₂

ⓘ Thorite

Formula: Th(SiO₄)

ⓘ Titanite

Formula: CaTi(SiO₄)O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Davidite-(Ce) ?	4.CC.40	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
ⓘ	Davidite-(La)	4.CC.40	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Rutile	4.DB.05	TiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
Group 9 - Silicates
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Orthoclase	9.FA.30	K(AlSi₃O₈)
ⓘ	Thorite	9.AD.30	Th(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Rutile	TiO₂
O	ⓘ Orthoclase	K(AlSi₃O₈)
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Thorite	Th(SiO₄)
O	ⓘ Calcite	CaCO₃
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
F	Fluorine
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
F	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
F	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Al	Aluminium
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Orthoclase	K(AlSi₃O₈)
Al	ⓘ Albite	Na(AlSi₃O₈)
Si	Silicon
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Orthoclase	K(AlSi₃O₈)
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Thorite	Th(SiO₄)
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
P	Phosphorus
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
S	Sulfur
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Pyrite	FeS₂
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Orthoclase	K(AlSi₃O₈)
Ca	Calcium
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ti	Titanium
Ti	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Ti	ⓘ Rutile	TiO₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Ti	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
V	Vanadium
V	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
V	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Cr	Chromium
Cr	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Cr	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Fe	Iron
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Y	Yttrium
Y	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Y	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
La	Lanthanum
La	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Ce	Cerium
Ce	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Th	Thorium
Th	ⓘ Thorite	Th(SiO₄)
U	Uranium
U	ⓘ Davidite-(La)	La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
U	ⓘ Davidite-(Ce)	Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)

Farahnaz Daliran, Tarkian M., Fatemeh Tavaff-Djalali (1994) A new occurrence of davidite from the apatite-magnetite ore deposit of Chogart, Bafg district, East Central Iran. Neues Jahrbuch für Mineralogie, Monatshefte, 3, 138-144.

F. Moore and S. Modabberi (2003): ORIGIN OF CHOGHART IRON OXIDE DEPOSIT, BAFQ MINING DISTRICT, CENTRAL IRAN: NEW ISOTOPIC AND GEOCHEMICAL EVIDENCE. Journal of Sciences, Islamic Republic of Iran 14(3), 259-269.

[https://jsciences.ut.ac.ir/pdf_31711_f5e4a09abf89977c835e8021acc6ac53.html]

Khalegh Khoshnoodi, Mehrdad Behzadi, Mohammad Gannadi-Maragheh, Mohammad Yazdi (2017): Alkali Metasomatism and Th-REE Mineralization in the Choghart deposit, Bafq district, Central Iran. Geologia Croatica 70, 53-69.

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Chogart Mine, Bafq County, Yazd Province, IraniRegional Level TypesChogart MineMine Bafq CountyCountry Yazd ProvinceProvince IranCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }