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:
Ashio Mine (Ashio Copper Mine), Ashio-machi, Nikko City, Tochigi, Japan

Oldest recorded age at locality: 15.9
Youngest recorded age at locality: 13.7

mindat Locality ID: 6800
mindat URL: http://www.mindat.org/loc-6800.html

Tectonic Settings:

Total number of sublocalities beneath "Ashio Mine (Ashio Copper Mine), Ashio-machi, Nikko City, Tochigi, Japan": 0
Total number of bottom-level sublocalities: 0

Latitude: 36°37'60"N
Longitude: 139°26'40"E
Decimal Degree (lat, lon): 36.633333333333,139.44444444444

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.

Ajoite	Apatite	Argyrodite	Arsenic	Arsenopyrite	Calcite	Chalcanthite	Chalcopyrite	Chlorite	Clay
Columbite	Copper	Covellite	Fluorite	Koritnigite	Malachite	Marcasite	Matlockite	Mica	Nickeline
None	Not in a structural group	Pyrite	Quartz	Rocksalt	Rutile	Scheelite	Sphalerite	Stannite	Stannoidite
Stibnite	Tetradymite	Tetrahedrite	Vivianite	Wavellite

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 Cl Co Cu F Fe H K Mg Mo O P Pb S Sb Se Si Sn Te W Zn

Elements from minerals reported directly at this locality: Ag Al As Au Bi C Ca Cl Co Cu F Fe H K Mg Mo O P Pb S Sb Se Si Sn Te W Zn

Structural Groups for minerals in this locality:
Ajoite Apatite Argyrodite Arsenic Arsenopyrite Calcite Chalcanthite Chalcopyrite Chlorite Clay
Columbite Copper Covellite Fluorite Koritnigite Malachite Marcasite Matlockite Mica Nickeline
None Not in a structural group Pyrite Quartz Rocksalt Rutile Scheelite Sphalerite Stannite Stannoidite
Stibnite Tetradymite Tetrahedrite Vivianite Wavellite

52 IMA Minerals at location:

Ajoite ()*	Arsenopyrite ()*	Azurite ()*	Bismoclite ()*	Bismuth ()*
Bismuthinite ()*	Bolivarite ()*	Bornite ()*	Calcite ()*	Canfieldite ()*
Cannonite ()*	Cassiterite ()*	Chalcanthite ()*	Chalcocite ()*	Chalcopyrite ()*
Chamosite ()*	Cobaltkoritnigite ()*	Copper ()*	Covellite ()*	Cuprite ()*
Djurleite ()*	Ferberite ()*	Fluorapatite ()*	Fluorite ()*	Galena ()*
Gold ()*	Ikunolite ()*	Koechlinite ()*	Laitakarite ()*	Laumontite ()*
Ludlamite ()*	Malachite ()*	Marcasite ()*	Mawsonite ()*	Muscovite ()*
Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Rucklidgeite ()*	Scheelite ()*
Siderite ()*	Silver ()*	Sphalerite ()*	Stannite ()*	Stannoidite ()*
Stibnite ()*	Tennantite-(Fe) ()*	Tetrahedrite-(Zn) ()*	Vivianite ()*	Wavellite ()*
Wittichenite ()*	Zavaritskite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Ajoite ()*	Ajoite	K₃Cu²⁺₂₀Al₃Si₂₉O₇₆(OH)₁₆·8H₂O	15.9	13.7	11
Arsenopyrite ()*	Arsenopyrite	FeAsS	15.9	13.7	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	15.9	13.7	5509
Bismoclite ()*	Matlockite	BiOCl	15.9	13.7	71
Bismuth ()*	Arsenic	Bi	15.9	13.7	1966
Bismuthinite ()*	Stibnite	Bi₂S₃	15.9	13.7	1935
Bolivarite ()*	None	Al₂(PO₄)(OH)₃·4H₂O	15.9	13.7	4
Bornite ()*	None	Cu₅FeS₄	15.9	13.7	5516
Calcite ()*	Calcite	Ca(CO₃)	15.9	13.7	27770
Canfieldite ()*	Argyrodite	Ag₈SnS₆	15.9	13.7	91
Cannonite ()*	None	Bi₂O(SO₄)(OH)₂	15.9	13.7	26
Cassiterite ()*	Rutile	SnO₂	15.9	13.7	5171
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	15.9	13.7	925
Chalcocite ()*	None	Cu₂S	15.9	13.7	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	15.9	13.7	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈	15.9	13.7	577
Cobaltkoritnigite ()*	Koritnigite	Co(AsO₃OH)·H₂O	15.9	13.7	32
Copper ()*	Copper	Cu	15.9	13.7	3846
Covellite ()*	Covellite	CuS	15.9	13.7	4165
Cuprite ()*	Not in a structural group	Cu₂O	15.9	13.7	2970
Djurleite ()*	None	Cu₃₁S₁₆	15.9	13.7	300
Ferberite ()*	Columbite	Fe²⁺(WO₄)	15.9	13.7	551
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	15.9	13.7	2740
Fluorite ()*	Fluorite	CaF₂	15.9	13.7	9617
Galena ()*	Rocksalt	PbS	15.9	13.7	24243
Gold ()*	Copper	Au	15.9	13.7	30554
Ikunolite ()*	Tetradymite	Bi₄S₃	15.9	13.7	54
Koechlinite ()*	None	Bi₂MoO₆	15.9	13.7	39
Laitakarite ()*	Tetradymite	Bi₄(Se,S)₃	15.9	13.7	30
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	15.9	13.7	1271
Ludlamite ()*	None	Fe²⁺₃(PO₄)₂·4H₂O	15.9	13.7	66
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	15.9	13.7	12537
Marcasite ()*	Marcasite	FeS₂	15.9	13.7	5674
Mawsonite ()*	None	Cu₆Fe₂SnS₈	15.9	13.7	92
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	15.9	13.7	17380
Pyrite ()*	Pyrite	FeS₂	15.9	13.7	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	15.9	13.7	9056
Quartz ()*	Quartz	SiO₂	15.9	13.7	61156
Rucklidgeite ()*	Tetradymite	PbBi₂Te₄	15.9	13.7	64
Scheelite ()*	Scheelite	Ca(WO₄)	15.9	13.7	4894
Siderite ()*	Calcite	Fe(CO₃)	15.9	13.7	6417
Silver ()*	Copper	Ag	15.9	13.7	5186
Sphalerite ()*	Sphalerite	ZnS	15.9	13.7	21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	15.9	13.7	668
Stannoidite ()*	Stannoidite	Cu₈(Fe,Zn)₃Sn₂S₁₂	15.9	13.7	80
Stibnite ()*	Stibnite	Sb₂S₃	15.9	13.7	3418
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃	15.9	13.7	1803
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	15.9	13.7	5317
Vivianite ()*	Vivianite	Fe²⁺₃(PO₄)₂·8H₂O	15.9	13.7	636
Wavellite ()*	Wavellite	Al₃(PO₄)₂(OH)₃·5H₂O	15.9	13.7	374
Wittichenite ()*	None	Cu₃BiS₃	15.9	13.7	297
Zavaritskite ()*	Matlockite	BiOF	15.9	13.7	26

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Kristen001943	15.9	13.7	14.8±1.1	K-Ar			whole rock							6800	Ashio Mine (Ashio Copper Mine), Ashio-machi, Nikko City, Tochigi, Japan	Ashio	Shibata and Ishihara (1974)	10.2113/gsecongeo.69.8.1207	EG69_1207
	Mo-00084	15.9	13.7		K-Ar								Koechlinite	Mo	6800	Ashio Mine (Ashio Copper Mine), Ashio-machi, Nikko City, Tochigi, Japan		Shibata and Ishihara (1974)	10.2113/gsecongeo.69.8.1207	EG69_1207

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...