Isolated outcrops of carbonatite. The complex is c.13 x 9 km in extent and is intruded into Precambrian hornblende gneisses. It comprises a central area of syenites and nepheline syenites partly enveloped by pyroxenites, among which are 4 bodies of dunite, the largest being c. 2 x 2 km. Carbonatites form dikes, lenses, fracture fillings.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

24 valid minerals.

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

Detailed Mineral List:

ⓘ Aegirine

Formula: NaFe³⁺Si₂O₆

References:

Semenov, E. I., Gopal, V., & SUBRAMANIAN, V. (1971). A note on the occurrence of benstonite, a carbonate of calcium and barium from the carbonatite complex at Jogipatti, near Samalpatti, Dharmapuri District, Tamil Nadu. Current Science, 254-256.

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

Srivastava, Rajesh K. (1998) Petrology of the Proterozoic Alkaline Carbonatite Complex of Samalpatti, District Dharmapuri, Tamil Nadu. Journal Geological Society of India, 51 (2). 233-244 doi:10.17491/jgsi/1998/510213

Ackerman, Lukáš, Magna, Tomáš, Rapprich, Vladislav, Upadhyay, Dewashish, Krátký, Ondřej, Čejková, Bohuslava, Erban, Vojtěch, Kochergina, Yulia V., Hrstka, Tomáš (2017) Contrasting petrogenesis of spatially related carbonatites from Samalpatti and Sevattur, Tamil Nadu, India. Lithos, 284. 257-275 doi:10.1016/j.lithos.2017.03.029

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Krátký, Ondřej, Rapprich, Vladislav, Racek, Martin, Míková, Jitka, Magna, Tomáš (2018) On the Chemical Composition and Possible Origin of Na–Cr-Rich Clinopyroxene in Silicocarbonatites from Samalpatti, Tamil Nadu, South India. Minerals, 8 (8) 355 doi:10.3390/min8080355

ⓘ 'Alkali Feldspar'

References:

ⓘ 'Amphibole Supergroup'

Formula: AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂

References:

ⓘ Ankerite

Formula: Ca(Fe²⁺,Mg)(CO₃)₂

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Baryte

Formula: BaSO₄

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Bastnäsite'

Formula: (Ce/Nd/Y/REE)(CO₃)F

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Benstonite

Formula: Ba₆Ca₆Mg(CO₃)₁₃

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Biotite'

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

References:

ⓘ Calcite

Formula: CaCO₃

References:

ⓘ 'Chevkinite Group'

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Chromite

Formula: Fe²⁺Cr³⁺₂O₄

References:

ⓘ Diopside

Formula: CaMgSi₂O₆

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Dolomite

Formula: CaMg(CO₃)₂

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

References:

ⓘ 'Fayalite-Forsterite Series'

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Grossular

Formula: Ca₃Al₂(SiO₄)₃

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'K Feldspar'

References:

ⓘ Kosmochlor

Formula: NaCrSi₂O₆

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

ⓘ 'Mica Group'

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Monazite Group'

Formula: REE(PO₄)

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Phlogopite

Formula: KMg₃(AlSi₃O₁₀)(OH)₂

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

ⓘ Quartz

Formula: SiO₂

References:

ⓘ Riebeckite

Formula: ◻[Na₂][Fe²⁺₃Fe³⁺₂]Si₈O₂₂(OH)₂

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Serpentine Subgroup'

Formula: D₃[Si₂O₅](OH)₄

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ 'Sodic amphibole'

References:

ⓘ Thorite

Formula: Th(SiO₄)

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Vermiculite

Formula: Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O

References:

ⓘ Winchite

Formula: ◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂

References:

ⓘ Wollastonite

Formula: Ca₃(Si₃O₉)

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Chromite	4.BB.05	Fe²⁺Cr³⁺₂O₄
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Benstonite	5.AB.55	Ba₆Ca₆Mg(CO₃)₁₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
Group 9 - Silicates
ⓘ	Grossular	9.AD.25	Ca₃Al₂(SiO₄)₃
ⓘ	Thorite	9.AD.30	Th(SiO₄)
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Aegirine	9.DA.25	NaFe³⁺Si₂O₆
ⓘ	Kosmochlor	9.DA.25	NaCrSi₂O₆
ⓘ	Winchite	9.DE.20	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
ⓘ	Riebeckite	9.DE.25	◻[Na₂][Fe²⁺₃Fe³⁺₂]Si₈O₂₂(OH)₂
ⓘ	Wollastonite	9.DG.05	Ca₃(Si₃O₉)
ⓘ	Phlogopite	9.EC.20	KMg₃(AlSi₃O₁₀)(OH)₂
ⓘ	Vermiculite	9.EC.50	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Alkali Feldspar'	-
ⓘ	'Amphibole Supergroup'	-	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
ⓘ	'Bastnäsite'	-	(Ce/Nd/Y/REE)(CO₃)F
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Monazite Group'	-	REE(PO₄)
ⓘ	'Mica Group'	-
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Hornblende Root Name Group'	-	◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'K Feldspar'	-
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Serpentine Subgroup'	-	D₃[Si₂O₅](OH)₄
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Chevkinite Group'	-
ⓘ	'Sodic amphibole'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
H	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
H	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
H	ⓘ Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
H	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
H	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
C	ⓘ Benstonite	Ba₆Ca₆Mg(CO₃)₁₃
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
O	Oxygen
O	ⓘ Aegirine	NaFe³⁺Si₂O₆
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Baryte	BaSO₄
O	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
O	ⓘ Benstonite	Ba₆Ca₆Mg(CO₃)₁₃
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Kosmochlor	NaCrSi₂O₆
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Monazite Group	REE(PO₄)
O	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
O	ⓘ Thorite	Th(SiO₄)
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
O	ⓘ Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
O	ⓘ Wollastonite	Ca₃(Si₃O₉)
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Pyroxene Group	ADSi₂O₆
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
O	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
F	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Na	Sodium
Na	ⓘ Aegirine	NaFe³⁺Si₂O₆
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Kosmochlor	NaCrSi₂O₆
Na	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
Na	ⓘ Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mg	ⓘ Benstonite	Ba₆Ca₆Mg(CO₃)₁₃
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Mg	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Mg	ⓘ Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
Mg	ⓘ Fayalite-Forsterite Series
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Al	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Al	ⓘ Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
Al	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Aegirine	NaFe³⁺Si₂O₆
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Si	ⓘ Kosmochlor	NaCrSi₂O₆
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
Si	ⓘ Thorite	Th(SiO₄)
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Si	ⓘ Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
Si	ⓘ Wollastonite	Ca₃(Si₃O₉)
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Pyroxene Group	ADSi₂O₆
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
Si	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
P	Phosphorus
P	ⓘ Monazite Group	REE(PO₄)
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Baryte	BaSO₄
Cl	Chlorine
Cl	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Cl	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Benstonite	Ba₆Ca₆Mg(CO₃)₁₃
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂
Ca	ⓘ Wollastonite	Ca₃(Si₃O₉)
Ca	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Ti	ⓘ Titanite	CaTi(SiO₄)O
Cr	Chromium
Cr	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Cr	ⓘ Kosmochlor	NaCrSi₂O₆
Fe	Iron
Fe	ⓘ Aegirine	NaFe³⁺Si₂O₆
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Riebeckite	◻[Na₂][Fe₃²⁺Fe₂³⁺]Si₈O₂₂(OH)₂
Fe	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Fe	ⓘ Fayalite-Forsterite Series
Y	Yttrium
Y	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Ba	ⓘ Benstonite	Ba₆Ca₆Mg(CO₃)₁₃
Ce	Cerium
Ce	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
Nd	Neodymium
Nd	ⓘ Bastnäsite	(Ce/Nd/Y/REE)(CO₃)F
Th	Thorium
Th	ⓘ Thorite	Th(SiO₄)

Geochronology

Mineralization age: Neochaotian to Cambrian : ~4600 Ma to 541 ± 1.0 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 Time

Rocks, Minerals and Events

Precambrian

ⓘ Gneiss

Precambrian
(541 - 4600 Ma)

Proterozoic

Neoproterozoic

Cryogenian

ⓘ Phlogopite (youngest age)

689 ± 18 Ma

Tonian

ⓘ Phlogopite (oldest age)

828 ± 20 Ma

Other Regions, Features and Areas containing this locality

AsiaContinent

Indian Plate (India Plate)Tectonic Plate

Southern Granulite TerraneOrogenic 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

Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216

Viladkar, S. G.; Subramanian, V. (1995) Mineralogy and Geochemistry of the Carbonatites of the Sevathur and Samalpatti Complexes, Tamil Nadu. Journal Geological Society of India, 45 (5). 505-517 doi:10.17491/jgsi/1995/450502

Woolley, Alan R. (2019) Alkaline Rocks and Carbonatites of the World. Part 4: Antarctica, Asia and Europe (excluding the former USSR), Australasia and Oceanic Islands. The Geological Society of London. doi:10.1144/mpar4p.112

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Geochronology

Other Regions, Features and Areas containing this locality

References

Samalpatti carbonatite complex, Krishnagiri District, Tamil Nadu, India i
Regional Level Types
Samalpatti carbonatite complex - not defined -
Krishnagiri District District
Tamil Nadu State
India Country