Inactive gold prospect largely owned by Ivanhoe corp. "Roseki"-type epithermal silver-gold mineralization as veins up to 2.5km long in hydrothermally altered Cretaceous andesitic tuffs on Gasado island (about 5km off SW coast of Korea); 136,000 tons crude ore reserves, containing a total of 227 Kg Au, 6,500 Kg Ag.
epithermal gold-silver deposit which was formed near paleo-surface.

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

ⓘ Silver

Mineral List

30 valid minerals.

Rock Types Recorded

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite

Formula: Ag₂S

References:

Choi, Seon-Gyu; Ryu, In-Chang; Pak, Sang Joon; Wee, Soo-Meen; Kim, Chang Seong; Park, Maeng-Eon (2005) Cretaceous epithermal gold–silver mineralization and geodynamic environment, Korea. Ore Geology Reviews, 26 (1-2). 115-135 doi:10.1016/j.oregeorev.2004.10.005

고영진 (2021) 가사도 열수 맥상광상의 금· 은 광화작용: Gold-Silver Mineralization at the Gasado Hydrothermal Vein Deposit [Gold-Silver Mineralization at the Gasado Hydrothermal Vein Deposit].

Ko, Youngjin, Kim, Chang Seong, Choi, Sang-Hoon (2022) Genetic Environments of Au-Ag-bearing Gasado Hydrothermal Vein Deposit. Economic and Environmental Geology, 55 (1) 53-61 doi:10.9719/eeg.2022.55.1.53

ⓘ Aguilarite

Formula: Ag₄SeS

References:

ⓘ Alunite

Formula: KAl₃(SO₄)₂(OH)₆

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

Kim, Chang Seong, Choi, Seon-Gyu (2009) PotassiumâArgon Ages of the Epithermal GoldâSilver Mineralization in the HaenamâJindo Area, Southwestern Korea. Resource Geology, 59 (4) 415-421 doi:10.1111/j.1751-3928.2009.00108.x

ⓘ Calcite

Formula: CaCO₃

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

ⓘ 'Chlorite Group'

References:

ⓘ Corundum

Formula: Al₂O₃

References:

ⓘ Diaspore

Formula: AlO(OH)

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Dickite

Formula: Al₂(Si₂O₅)(OH)₄

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Empressite

Formula: AgTe

References:

ⓘ Epidote

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

References:

ⓘ 'Feldspar Group'

References:

ⓘ Galena

Formula: PbS

References:

ⓘ Halloysite

Formula: Al₂Si₂O₅(OH)₄ · n(H₂O)

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Hematite

Formula: Fe₂O₃

References:

ⓘ Hessite

Formula: Ag₂Te

References:

ⓘ Jalpaite

Formula: Ag₃CuS₂

References:

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ 'K Feldspar'

References:

ⓘ 'K Feldspar var. Adularia'

Formula: KAlSi₃O₈

References:

ⓘ Lenaite

Formula: AgFeS₂

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Muscovite var. Illite

Formula: K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ Native Gold

Formula: Au

References:

ⓘ Native Gold var. Electrum

Formula: (Au,Ag)

References:

ⓘ Native Silver

Formula: Ag

References:

ⓘ Naumannite

Formula: Ag₂Se

References:

ⓘ Orthoclase

Formula: K(AlSi₃O₈)

References:

ⓘ Polybasite

Formula: [Ag₆Sb₂S₇][Ag₉CuS₄]

References:

ⓘ Pyrite

Formula: FeS₂

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Pyrophyllite

Formula: Al₂Si₄O₁₀(OH)₂

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

ⓘ Quartz

Formula: SiO₂

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Quartz var. Chalcedony

Formula: SiO₂

References:

ⓘ 'Smectite Group'

Formula: A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

References:

"Exploration and utilization of the epithermal gold deposit in Korea."

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ Stützite

Formula: Ag_5-xTe₃, x = 0.24-0.36

References:

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S

References:

ⓘ Uytenbogaardtite

Formula: Ag₃AuS₂

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Gold var. Electrum	1.AA.05	(Au,Ag)
ⓘ		1.AA.05	Au
ⓘ	Native Silver	1.AA.05	Ag
Group 2 - Sulphides and Sulfosalts
ⓘ	Acanthite	2.BA.35	Ag₂S
ⓘ	Jalpaite	2.BA.45	Ag₃CuS₂
ⓘ	Aguilarite	2.BA.55	Ag₄SeS
ⓘ	Naumannite	2.BA.55	Ag₂Se
ⓘ	Hessite	2.BA.60	Ag₂Te
ⓘ	Stützite	2.BA.65	Ag_5-xTe₃, x = 0.24-0.36
ⓘ	Uytenbogaardtite	2.BA.75	Ag₃AuS₂
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Lenaite	2.CB.10a	AgFeS₂
ⓘ	Empressite	2.CB.80	AgTe
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	'Tetrahedrite Subgroup'	2.GB.05	Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S
ⓘ	Polybasite	2.GB.15	[Ag₆Sb₂S₇][Ag₉CuS₄]
Group 4 - Oxides and Hydroxides
ⓘ	Corundum	4.CB.05	Al₂O₃
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz var. Chalcedony	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	Diaspore	4.FD.10	AlO(OH)
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Alunite	7.BC.10	KAl₃(SO₄)₂(OH)₆
Group 9 - Silicates
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Pyrophyllite	9.EC.10	Al₂Si₄O₁₀(OH)₂
ⓘ	Muscovite var. Illite	9.EC.15	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ		9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Dickite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Halloysite	9.ED.10	Al₂Si₂O₅(OH)₄ · n(H₂O)
ⓘ	Orthoclase	9.FA.30	K(AlSi₃O₈)
Unclassified
ⓘ	'K Feldspar var. Adularia'	-	KAlSi₃O₈
ⓘ	'Chlorite Group'	-
ⓘ	'Feldspar Group'	-
ⓘ	'K Feldspar'	-
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Smectite Group'	-	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
H	ⓘ Diaspore	AlO(OH)
H	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Halloysite	Al₂Si₂O₅(OH)₄ · n(H₂O)
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
O	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
O	ⓘ Calcite	CaCO₃
O	ⓘ Quartz var. Chalcedony	SiO₂
O	ⓘ Corundum	Al₂O₃
O	ⓘ Diaspore	AlO(OH)
O	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Halloysite	Al₂Si₂O₅(OH)₄ · n(H₂O)
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Orthoclase	K(AlSi₃O₈)
O	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Pyroxene Group	ADSi₂O₆
O	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
Al	Aluminium
Al	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Al	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
Al	ⓘ Corundum	Al₂O₃
Al	ⓘ Diaspore	AlO(OH)
Al	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Halloysite	Al₂Si₂O₅(OH)₄ · n(H₂O)
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Orthoclase	K(AlSi₃O₈)
Al	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Si	ⓘ Quartz var. Chalcedony	SiO₂
Si	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Halloysite	Al₂Si₂O₅(OH)₄ · n(H₂O)
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Orthoclase	K(AlSi₃O₈)
Si	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Pyroxene Group	ADSi₂O₆
S	Sulfur
S	ⓘ Acanthite	Ag₂S
S	ⓘ Aguilarite	Ag₄SeS
S	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Galena	PbS
S	ⓘ Jalpaite	Ag₃CuS₂
S	ⓘ Lenaite	AgFeS₂
S	ⓘ Polybasite	[Ag₆Sb₂S₇][Ag₉CuS₄]
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
S	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
S	ⓘ Uytenbogaardtite	Ag₃AuS₂
K	Potassium
K	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
K	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Orthoclase	K(AlSi₃O₈)
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	Iron
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Lenaite	AgFeS₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Jalpaite	Ag₃CuS₂
Cu	ⓘ Polybasite	[Ag₆Sb₂S₇][Ag₉CuS₄]
Cu	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Se	Selenium
Se	ⓘ Aguilarite	Ag₄SeS
Se	ⓘ Naumannite	Ag₂Se
Ag	Silver
Ag	ⓘ Acanthite	Ag₂S
Ag	ⓘ Aguilarite	Ag₄SeS
Ag	ⓘ Native Gold var. Electrum	(Au,Ag)
Ag	ⓘ Empressite	AgTe
Ag	ⓘ Hessite	Ag₂Te
Ag	ⓘ Jalpaite	Ag₃CuS₂
Ag	ⓘ Lenaite	AgFeS₂
Ag	ⓘ Naumannite	Ag₂Se
Ag	ⓘ Polybasite	[Ag₆Sb₂S₇][Ag₉CuS₄]
Ag	ⓘ Native Silver	Ag
Ag	ⓘ Stützite	Ag_5-xTe₃, x = 0.24-0.36
Ag	ⓘ Uytenbogaardtite	Ag₃AuS₂
Sb	Antimony
Sb	ⓘ Polybasite	[Ag₆Sb₂S₇][Ag₉CuS₄]
Sb	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Te	Tellurium
Te	ⓘ Empressite	AgTe
Te	ⓘ Hessite	Ag₂Te
Te	ⓘ Stützite	Ag_5-xTe₃, x = 0.24-0.36
Au	Gold
Au	ⓘ Native Gold var. Electrum	(Au,Ag)
Au	ⓘ Native Gold	Au
Au	ⓘ Uytenbogaardtite	Ag₃AuS₂
Pb	Lead
Pb	ⓘ Galena	PbS

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

Ogcheon BeltShield

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References

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