Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Johkoku Mine (Jôkoku Mine; Jokoku Mine), Kaminokuni, Hiyama Subprefecture, Oshima Peninsula, Hokkaidō, Japan

mindat Locality ID: 12117
mindat URL: http://www.mindat.org/loc-12117.html

Tectonic Settings:

Total number of sublocalities beneath "Johkoku Mine (Jôkoku Mine; Jokoku Mine), Kaminokuni, Hiyama Subprefecture, Oshima Peninsula, Hokkaidō, Japan": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Matahachi Deposit

Latitude: 41°40'0"N
Longitude: 140°3'10"E
Decimal Degree (lat, lon): 41.666666666667,140.05277777778

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Acanthite	Alunite	Amphibole	Argyrodite	Arsenopyrite	Calcite	Chalcanthite	Chalcopyrite	Clay	Clinozoisite
Copiapite	Copper	Coronadite	Diaspore	Epidote	Epsomite	Geocronite	Gypsum	Hexahydrite	Kaolinite
Kieserite	Löllingite	Lepidocrocite	Marcasite	Melanterite	Mica	Millerite	Nickeline	None	Pentlandite
Polybasite	Prehnite	Pyrite	Pyroxene	Quartz	Ramsdellite	Rocksalt	Rutile	Sphalerite	Spinel
Starkeyite	Tetrahedrite	Vivianite	Wollastonite

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au Bi C Ca Cu Fe Ge H K Li Mg Mn Ni O P Pb S Sb Si Zn

Elements from minerals reported directly at this locality: Ag Al As Bi C Ca Cu Fe Ge H K Li Mg Mn Ni O P Pb S Sb Si Zn

Structural Groups for minerals in this locality:
Acanthite Alunite Amphibole Argyrodite Arsenopyrite Calcite Chalcanthite Chalcopyrite Clay Clinozoisite
Copiapite Copper Coronadite Diaspore Epidote Epsomite Geocronite Gypsum Hexahydrite Kaolinite
Kieserite Löllingite Lepidocrocite Marcasite Melanterite Mica Millerite Nickeline None Pentlandite
Polybasite Prehnite Pyrite Pyroxene Quartz Ramsdellite Rocksalt Rutile Sphalerite Spinel
Starkeyite Tetrahedrite Vivianite Wollastonite

63 IMA Minerals at location:

Acanthite ()*	Actinolite ()*	Ankerite ()*	Annabergite ()*	Argyrodite ()*
Arsenopyrite ()*	Calcite ()*	Chalcopyrite ()*	Copiapite ()*	Coronadite ()*
Cryptomelane ()*	Diopside ()*	Dolomite ()*	Epidote ()*	Ferrohexahydrite ()*
Freibergite ()*	Galena ()*	Geocronite ()*	Goethite ()*	Gold ()*
Goslarite ()*	Gypsum ()*	Hexahydrite ()*	Ilesite ()*	Jôkokuite ()*
Kaolinite ()*	Kutnohorite ()*	Lepidocrocite ()*	Lithiophorite ()*	Mallardite ()*
Manganite ()*	Marcasite ()*	Matildite ()*	Melanterite ()*	Millerite ()*
Muscovite ()*	Nickeline ()*	Nsutite ()*	Gersdorffite-Pa3 ()*	Pararammelsbergite ()*
Pentlandite ()*	Plumbogummite ()*	Polybasite ()*	Prehnite ()*	Proustite ()*
Pyrargyrite ()*	Pyrite ()*	Pyrolusite ()*	Pyrrhotite ()*	Quartz ()*
Rhodochrosite ()*	Rozenite ()*	Siderotil ()*	Silver ()*	Sphalerite ()*
Szmikite ()*	Szomolnokite ()*	Tetrahedrite-(Zn) ()*	Tremolite ()*	Violarite ()*
Wollastonite ()*	Zincmelanterite ()*	Zoisite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Acanthite ()*	Acanthite	Ag₂S	0		2793
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	0		3419
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	0		3092
Annabergite ()*	Vivianite	Ni₃(AsO₄)₂·8H₂O	0		445
Argyrodite ()*	Argyrodite	Ag₈GeS₆	0		62
Arsenopyrite ()*	Arsenopyrite	FeAsS	0		9052
Calcite ()*	Calcite	Ca(CO₃)	0		27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	0		27198
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	0		382
Coronadite ()*	Coronadite	Pb(Mn⁴⁺₆Mn³⁺₂)O₁₆	0		227
Cryptomelane ()*	Coronadite	K(Mn⁴⁺₇Mn³⁺)O₁₆	0		599
Diopside ()*	Pyroxene	CaMgSi₂O₆	0		4135
Dolomite ()*	None	CaMg(CO₃)₂	0		9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	0		8173
Ferrohexahydrite ()*	Hexahydrite	Fe²⁺(SO₄)·6H₂O	0		21
Freibergite ()*	Tetrahedrite	Ag₆[Cu₄Fe₂]Sb₄S₁₂	0		663
Galena ()*	Rocksalt	PbS	1	74757	24243
Geocronite ()*	Geocronite	Pb₁₄Sb₆S₂₃	0		133
Goethite ()*	Diaspore	FeO(OH)	0		7437
Gold ()*	Copper	Au	1	74757	30554
Goslarite ()*	Epsomite	Zn(SO₄)·7H₂O	0		188
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	0		6890
Hexahydrite ()*	Hexahydrite	Mg(SO₄)·6H₂O	0		251
Ilesite ()*	Starkeyite	Mn²⁺(SO₄)·4H₂O	0		9
Jôkokuite ()*	Chalcanthite	Mn²⁺(SO₄)·5H₂O	0		7
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	0		5591
Kutnohorite ()*	None	CaMn²⁺(CO₃)₂	0		234
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	0		581
Lithiophorite ()*	None	(Al,Li)(Mn⁴⁺,Mn³⁺)O₂(OH)₂	0		210
Mallardite ()*	Melanterite	Mn(SO₄)·7H₂O	0		14
Manganite ()*	Rutile	Mn³⁺O(OH)	0		770
Marcasite ()*	Marcasite	FeS₂	0		5674
Matildite ()*	None	AgBiS₂	0		252
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	0		915
Millerite ()*	Millerite	NiS	0		1066
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	0		17380
Nickeline ()*	Nickeline	NiAs	0		633
Nsutite ()*	Ramsdellite	Mn²⁺_xMn⁴⁺_1-xO_2-2x(OH)_2x	0		121
Gersdorffite-Pa3 ()*	Pyrite	NiAsS	0		767
Pararammelsbergite ()*	Löllingite	NiAs₂	0		52
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	0		1512
Plumbogummite ()*	Alunite	PbAl₃(PO₄)(PO₃OH)(OH)₆	0		170
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]	0		716
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	0		1898
Proustite ()*	None	Ag₃AsS₃	0		733
Pyrargyrite ()*	None	Ag₃SbS₃	0		1425
Pyrite ()*	Pyrite	FeS₂	0		39462
Pyrolusite ()*	Rutile	MnO₂	0		3106
Pyrrhotite ()*	Nickeline	Fe₇S₈	0		9056
Quartz ()*	Quartz	SiO₂	0		61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	1	74757	1711
Rozenite ()*	Starkeyite	Fe²⁺(SO₄)·4H₂O	0		293
Siderotil ()*	Chalcanthite	Fe(SO₄)·5H₂O	0		84
Silver ()*	Copper	Ag	0		5186
Sphalerite ()*	Sphalerite	ZnS	1	74757	21482
Szmikite ()*	Kieserite	Mn(SO₄)·H₂O	0		14
Szomolnokite ()*	Kieserite	Fe(SO₄)·H₂O	0		139
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	0		5317
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	0		2562
Violarite ()*	Spinel	FeNi₂S₄	0		380
Wollastonite ()*	Wollastonite	CaSiO₃	0		1247
Zincmelanterite ()*	Melanterite	Zn(SO₄)·7H₂O	0		8
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	0		1025

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R070102	Johkoku Mine (Jôkoku Mine; Jokoku Mine), Kaminokuni, Hiyama Subprefecture, Oshima Peninsula, Hokkaidō, Japan	https://rruff.info/R070102

All locality data graciously provided by mindat.org

All age data...