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:
Iwami Mine (Iwami-ginzan), Ōda City, Shimane, Japan

Oldest recorded age at locality: 84.7
Youngest recorded age at locality: 15

mindat Locality ID: 108163
mindat URL: http://www.mindat.org/loc-108163.html

Tectonic Settings: Continental Arc

Total number of sublocalities beneath "Iwami Mine (Iwami-ginzan), Ōda City, Shimane, Japan": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Mt Yohgai (Yohgai-san; Yogai-san)
Omori Mine
Sen-no-yama (Sennoyama; Mt Senno)

Latitude: 35°9'51"N
Longitude: 132°26'30"E
Decimal Degree (lat, lon): 35.164166666667,132.44166666667

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	Calcite	Chalcopyrite	Clay	Copper	Corundum	Malachite	Mica	None	Pyrite
Quartz	Rocksalt	Sphalerite

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 C Cu Fe H K O Pb S Si Zn

Elements from minerals reported directly at this locality: Ag Al C Cu Fe H K O Pb S Si

Structural Groups for minerals in this locality:
Acanthite Calcite Chalcopyrite Clay Copper Corundum Malachite Mica None Pyrite
Quartz Rocksalt Sphalerite

11 IMA Minerals at location:

Acanthite ()*	Chalcopyrite ()*	Galena ()*	Hematite ()*	Malachite ()*
Muscovite ()*	Pyrite ()*	Quartz ()*	Siderite ()*	Silver ()*
Sphalerite ()*

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
Acanthite ()*	Acanthite	Ag₂S	15	15	0		2793
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	15	15	0		27198
Galena ()*	Rocksalt	PbS	15	15	0		24243
Hematite ()*	Corundum	Fe₂O₃	15	15	0		14640
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	15	15	0		12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	15	15	0		17380
Pyrite ()*	Pyrite	FeS₂	15	15	1	76416	39462
Quartz ()*	Quartz	SiO₂	84.7	15	1	76416	61156
Siderite ()*	Calcite	Fe(CO₃)	84.7	15	1	76416	6417
Silver ()*	Copper	Ag	15	15	0		5186
Sphalerite ()*	Sphalerite	ZnS	15	15	1	76416	21482

5 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Sample Num	Age from other Locality	Dated Mineral	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Mo-00222	69.7	64.5	67.1±2.6	Re-Os	molybdenite	Takagigawa (Tg)	Yes	Molybdenite	Mo	218607	Hirose, Shimane, Japan	Hirose, Shimane	Suzuki et al. (1996)	10.1016/0016-7037(96)00164-0	GCA60_3151
Mo-00223	68.3	63.5	65.9±2.4	Re-Os	molybdenite	Takagigawa (Tg)	Yes	Molybdenite	Mo	218607	Hirose, Shimane, Japan	Hirose, Shimane	Suzuki et al. (1996)	10.1016/0016-7037(96)00164-0	GCA60_3151
Kristen001925	84.7	78.1	81.4±3.3	K-Ar	biotite	71Y-12	Yes			19893	Tsumo Mine, Masuda, Shimane, Japan	Tsumo	Shibata and Ishihara (1974)	10.2113/gsecongeo.69.8.1207	EG69_1207
Kristen001926	81.8	75.4	78.6±3.2	K-Ar	phlogopite		Yes	Phlogopite		19893	Tsumo Mine, Masuda, Shimane, Japan	Tsumo	Shibata and Ishihara (1974)	10.2113/gsecongeo.69.8.1207	EG69_1207
vms-00528	15	15	Miocene						S	108163	Iwami Mine (Iwami-ginzan), Ōda City, Shimane, Japan	Iwami	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...