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:
Kiwada Mine, Iwakuni City, Yamaguchi, Japan

Oldest recorded age at locality: 98.7
Youngest recorded age at locality: 88.4

mindat Locality ID: 185505
mindat URL: http://www.mindat.org/loc-185505.html

Tectonic Settings:

Total number of sublocalities beneath "Kiwada Mine, Iwakuni City, Yamaguchi, Japan": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Apatite	Arsenopyrite	Calcite	Cancrinite-sodalite	Chalcopyrite	Clay	Fluorite	Molybdenite	Nickeline	None
Pyroxene	Quartz	Rocksalt	Rutile	Scheelite	Sodalite	Sphalerite	Spinel	Stilpnomelane	Titanite
Vesuvianite	Wollastonite

Alabandite ()*	Arsenopyrite ()*	Calcite ()*	Cassiterite ()*	Chalcopyrite ()*
Danalite ()*	Fluorapatite ()*	Fluorite ()*	Hedenbergite ()*	Magnetite ()*
Malayaite ()*	Molybdenite ()*	Pyrrhotite ()*	Quartz ()*	Scheelite ()*
Sphalerite ()*	Stilpnomelane ()*	Vesuvianite ()*	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 Be C Ca Cu F Fe H K Mg Mn Mo Na O P S Si Sn W Zn

Elements from minerals reported directly at this locality: Al As Be C Ca Cu F Fe H K Mg Mn Mo Na O P S Si Sn W Zn

Structural Groups for minerals in this locality:
Apatite Arsenopyrite Calcite Cancrinite-sodalite Chalcopyrite Clay Fluorite Molybdenite Nickeline None
Pyroxene Quartz Rocksalt Rutile Scheelite Sodalite Sphalerite Spinel Stilpnomelane Titanite
Vesuvianite Wollastonite

19 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Alabandite ()*	Rocksalt	MnS	98.7	92.9	312
Arsenopyrite ()*	Arsenopyrite	FeAsS	98.7	92.9	9052
Calcite ()*	Calcite	Ca(CO₃)	98.7	92.9	27770
Cassiterite ()*	Rutile	SnO₂	98.7	92.9	5171
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	98.7	92.9	27198
Danalite ()*	Cancrinite-sodalite Sodalite	Be₃Fe²⁺₄(SiO₄)₃S	98.7	92.9	58
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	98.7	92.9	2740
Fluorite ()*	Fluorite	CaF₂	98.7	92.9	9617
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	98.7	92.9	741
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	98.7	92.9	14899
Malayaite ()*	Titanite	CaSnO(SiO₄)	98.7	92.9	40
Molybdenite ()*	Molybdenite	MoS₂	98.7	92.9	5800
Pyrrhotite ()*	Nickeline	Fe₇S₈	98.7	92.9	9056
Quartz ()*	Quartz	SiO₂	98.7	92.9	61156
Scheelite ()*	Scheelite	Ca(WO₄)	98.7	92.9	4894
Sphalerite ()*	Sphalerite	ZnS	98.7	92.9	21482
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O	98.7	92.9	456
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀	98.7	92.9	1395
Wollastonite ()*	Wollastonite	CaSiO₃	98.7	92.9	1247

3 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	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
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
Kristen001929	98.7	92.9	95.8±2.9	K-Ar	muscovite			Muscovite	185505	Kiwada Mine, Iwakuni City, Yamaguchi, Japan	Kiwada	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...