Gold mine known since ancient times.
"The Hutti mine is probably one of the most ancient metal mines in the world, dating to the Pre-Ashokan period. The ancient miners worked down to depths between 35m and 190m. The later which was intersected in 640 ft. level workings of the main mine in the 1890s, being the deepest known ancient working in the world. Evidences from the bottom of the ancient workings indicate that mine excavations by ancients was achieved by means of fire-setting. The carbon dating test of the old timber recovered from the bottom of ancient mine workings indicated that the ancient mining activity was about 1,900 years old." (http://www.huttigold.co.in/hutti/index/history#)

The deposit occurs within the 65 km long Hutti-Maski greenstone belt consisting of Archaean metavolcanic rocks (amphibolite and meta-rhyolite).
Gold mineralization at Hutti is confined to a series of nine parallel
N-S to NNW-SSE trending, steeply dipping shear zones, that are locally
referred to as reefs. From west to east the name of these reefs are
(i) Main, (ii) Prospect, (iii) Oakley’s, (iv) Middle, (v) Zone-I, (vi)
Village, (vii) Strike Reef Hanging Wall, (viii) Strike Reef Foot Wall
and (ix) New East Reef and is situated very close to the western contact
of the schist belt with granite. Currently, the mining activity is in
progress in Oakley’s, Middle, Zone-I, Village, Strike Reef respectively.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Gold

Mineral List

17 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

ⓘ 'Dolerite'

ⓘ Metabasalt

ⓘ Schist

Detailed Mineral List:

ⓘ Arsenopyrite

Formula: FeAsS

Reference: Economic Geology 103 (2008) 1715-1727 Raju, P. S., & Sangurmath, P. (2022). The Occurrence of Platinum (Pt) and Skaergaardite (Pd Cu) in the Hutti Underground Gold Mines, Eastern Dharwar Craton, Karnataka, India. Journal of the Geological Society of India, 98(9), 1217-1220.

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005) Raju, P. S., & Sangurmath, P. (2022). The Occurrence of Platinum (Pt) and Skaergaardite (Pd Cu) in the Hutti Underground Gold Mines, Eastern Dharwar Craton, Karnataka, India. Journal of the Geological Society of India, 98(9), 1217-1220.

ⓘ Calcite

Formula: CaCO₃

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ Chalcopyrite

Formula: CuFeS₂

ⓘ 'Chlorite Group'

ⓘ Epidote

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

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ Gold

Formula: Au

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ 'K Feldspar'

Formula: KAlSi₃O₈

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ 'Monazite'

Formula: REE(PO₄)

Reference: Economic Geology 103 (2008) 1715-1727

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ Platinum

Formula: Pt

Reference: Raju, P. S., & Sangurmath, P. (2022). The Occurrence of Platinum (Pt) and Skaergaardite (Pd Cu) in the Hutti Underground Gold Mines, Eastern Dharwar Craton, Karnataka, India. Journal of the Geological Society of India, 98(9), 1217-1220.

ⓘ Pyrite

Formula: FeS₂

ⓘ Pyrrhotite

Formula: Fe_1-xS

Reference: Economic Geology 103 (2008) 1715-1727

ⓘ Quartz

Formula: SiO₂

ⓘ Quartz var. Blue Quartz

Formula: SiO₂

ⓘ Rutile

Formula: TiO₂

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ Scheelite

Formula: Ca(WO₄)

ⓘ Skaergaardite

Formula: PdCu

ⓘ Sphalerite

Formula: ZnS

Reference: Economic Geology 103 (2008) 1715-1727; J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005) Raju, P. S., & Sangurmath, P. (2022). The Occurrence of Platinum (Pt) and Skaergaardite (Pd Cu) in the Hutti Underground Gold Mines, Eastern Dharwar Craton, Karnataka, India. Journal of the Geological Society of India, 98(9), 1217-1220.

ⓘ Titanite

Formula: CaTi(SiO₄)O

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

Reference: J. Kolb, et al (2005) Mineralium Deposita, 40 (March, 2005)

ⓘ Xenotime-(Y)

Formula: Y(PO₄)

Reference: Economic Geology 103 (2008) 1715-1727

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold	1.AA.05	Au
ⓘ	Platinum	1.AF.10	Pt
ⓘ	Skaergaardite	1.AG.45	PdCu
Group 2 - Sulphides and Sulfosalts
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Sphalerite	2.CB.05a	ZnS
Group 4 - Oxides and Hydroxides
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Blue Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Scheelite	7.GA.05	Ca(WO₄)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Xenotime-(Y)	8.AD.35	Y(PO₄)
Group 9 - Silicates
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
Unclassified Minerals, Rocks, etc.
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
ⓘ	'Chlorite Group'	-
ⓘ	'K Feldspar'	-	KAlSi₃O₈
ⓘ	'Monazite'	-	REE(PO₄)
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
B	Boron
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Quartz	SiO₂
O	ⓘ Monazite	REE(PO₄)
O	ⓘ Xenotime-(Y)	Y(PO₄)
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ K Feldspar	KAlSi₃O₈
O	ⓘ Scheelite	Ca(WO₄)
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Rutile	TiO₂
O	ⓘ Quartz var. Blue Quartz	SiO₂
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Na	Sodium
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	Aluminium
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ K Feldspar	KAlSi₃O₈
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	Silicon
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ K Feldspar	KAlSi₃O₈
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Quartz var. Blue Quartz	SiO₂
P	Phosphorus
P	ⓘ Monazite	REE(PO₄)
P	ⓘ Xenotime-(Y)	Y(PO₄)
S	Sulfur
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Sphalerite	ZnS
K	Potassium
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ K Feldspar	KAlSi₃O₈
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Scheelite	Ca(WO₄)
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Ti	ⓘ Rutile	TiO₂
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Skaergaardite	PdCu
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
Y	Yttrium
Y	ⓘ Xenotime-(Y)	Y(PO₄)
Pd	Palladium
Pd	ⓘ Skaergaardite	PdCu
W	Tungsten
W	ⓘ Scheelite	Ca(WO₄)
Pt	Platinum
Pt	ⓘ Platinum	Pt
Au	Gold
Au	ⓘ Gold	Au

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A) In-text Citation No.

Economic Geology 103 (2008) 1715-1727.

Saravanan, C.S., and Mishra, B. (2009): Uniformity in sulfur isotope composition in the orogenic gold deposits from the Dharwar Craton, southern India. Mineralium Deposita 44, 597-605.

Raju, P. S., & Sangurmath, P. (2022). The Occurrence of Platinum (Pt) and Skaergaardite (Pd Cu) in the Hutti Underground Gold Mines, Eastern Dharwar Craton, Karnataka, India. Journal of the Geological Society of India, 98(9), 1217-1220.

External Links

http://www.huttigold.co.in/hutti/index/history#

Other Regions, Features and Areas containing this locality

AsiaContinent

India

Karnataka
- Hutti-Maski beltBelt

Indian Plate (India Plate)Tectonic Plate

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