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:
Kuga Mine (Kuka Mine), Iwakuni City, Yamaguchi, Japan

Oldest recorded age at locality: 97.4
Youngest recorded age at locality: 88.4

mindat Locality ID: 108206
mindat URL: http://www.mindat.org/loc-108206.html

Tectonic Settings:

Total number of sublocalities beneath "Kuga Mine (Kuka Mine), Iwakuni City, Yamaguchi, Japan": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Ideno-oku Orebody
Shikada Orebody
Umenokigawa

Latitude: 34°13'0"N
Longitude: 132°1'30"E
Decimal Degree (lat, lon): 34.216666666667,132.025

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.

Amphibole	Arsenic	Arsenopyrite	Beryl	Calcite	Chalcopyrite	Clay	Clinozoisite	Epidote	Fluorite
Marcasite	Mica	Nickeline	None	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Scheelite
Sphalerite	Stannite	Stibnite	Tetradymite	Titanite	Wollastonite

Actinolite ()*	Arsenopyrite ()*	Bismuth ()*	Bismuthinite ()*	Calcite ()*
Cassiterite ()*	Chalcopyrite ()*	Cordierite ()*	Diopside ()*	Epidote ()*
Fluorite ()*	Galena ()*	Hedenbergite ()*	Laitakarite ()*	Malayaite ()*
Marcasite ()*	Muscovite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Scheelite ()*	Sphalerite ()*	Stannite ()*	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: Al As Bi C Ca Cu F Fe H K Mg O Pb S Se Si Sn W Zn

Elements from minerals reported directly at this locality: Al As Bi Ca Cu F Fe H Mg O Pb S Se Si Sn Zn

Structural Groups for minerals in this locality:
Amphibole Arsenic Arsenopyrite Beryl Calcite Chalcopyrite Clay Clinozoisite Epidote Fluorite
Marcasite Mica Nickeline None Pyrite Pyroxene Quartz Rocksalt Rutile Scheelite
Sphalerite Stannite Stibnite Tetradymite Titanite Wollastonite

24 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	97.4	88.4	0		3419
Arsenopyrite ()*	Arsenopyrite	FeAsS	97.4	88.4	0		9052
Bismuth ()*	Arsenic	Bi	97.4	88.4	0		1966
Bismuthinite ()*	Stibnite	Bi₂S₃	97.4	88.4	0		1935
Calcite ()*	Calcite	Ca(CO₃)	97.4	88.4	1	76851	27770
Cassiterite ()*	Rutile	SnO₂	97.4	88.4	0		5171
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	97.4	88.4	0		27198
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	97.4	88.4	1	76852	1008
Diopside ()*	Pyroxene	CaMgSi₂O₆	97.4	88.4	0		4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	97.4	88.4	0		8173
Fluorite ()*	Fluorite	CaF₂	97.4	88.4	0		9617
Galena ()*	Rocksalt	PbS	97.4	88.4	0		24243
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	97.4	88.4	0		741
Laitakarite ()*	Tetradymite	Bi₄(Se,S)₃	97.4	88.4	0		30
Malayaite ()*	Titanite	CaSnO(SiO₄)	97.4	88.4	2	76850,76851	40
Marcasite ()*	Marcasite	FeS₂	97.4	88.4	0		5674
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	97.4	88.4	1	76852	17380
Pyrite ()*	Pyrite	FeS₂	97.4	88.4	0		39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	97.4	88.4	0		9056
Quartz ()*	Quartz	SiO₂	97.4	88.4	2	76850,76851	61156
Scheelite ()*	Scheelite	Ca(WO₄)	97.4	88.4	3	76850,76851,76852	4894
Sphalerite ()*	Sphalerite	ZnS	97.4	88.4	0		21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	97.4	88.4	0		668
Wollastonite ()*	Wollastonite	CaSiO₃	97.4	88.4	1	76851	1247

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
	Kristen001927	97.4	91.8	94.6±2.8	K-Ar			muscovite	69FD-79		Yes	Muscovite			11275	Fujigatani Mine, Iwakuni City, Yamaguchi, Japan	Fujigatani	Shibata and Ishihara (1974)	10.2113/gsecongeo.69.8.1207	EG69_1207
	Kristen001928	95.8	88.4	92.1±3.7	K-Ar			muscovite			Yes	Muscovite			11275	Fujigatani Mine, Iwakuni City, Yamaguchi, Japan	Fujigatani	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...