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:
Ibara City, Okayama, Japan

Oldest recorded age at locality: 87.9
Youngest recorded age at locality: 81.1

mindat Locality ID: 230640
mindat URL: http://www.mindat.org/loc-230640.html

Tectonic Settings:

Total number of sublocalities beneath "Ibara City, Okayama, Japan": 4
Total number of bottom-level sublocalities: 2

Number of Child Localities: 1
Child Localities:
Higashi-Mihara

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.

Acanthite	Chalcopyrite	Clinozoisite	Copper	Cubanite	Epidote	Feldspar	Malachite	Melonite	None
Not in a structural group	Pyrite	Pyroxene	Quartz	Rocksalt	Sphalerite	Spurrite-Afwillite	Wurtzite	hauchecornite

Afwillite ()*	Aguilarite ()*	Albite ()*	Altaite ()*	Azurite ()*
Bismutohauchecornite ()*	Bornite ()*	Bultfonteinite ()*	Chalcopyrite ()*	Cubanite ()*
Epidote ()*	Fukalite ()*	Galena ()*	Gold ()*	Greenockite ()*
Hedenbergite ()*	Hessite ()*	Laumontite ()*	Malachite ()*	Melonite ()*
Miharaite ()*	Naumannite ()*	Pyrite ()*	Quartz ()*	Sphalerite ()*
Spurrite ()*	Wittichenite ()*	Xonotlite ()*

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 Au Bi C Ca Cd Cu F Fe H Na Ni O Pb S Se Si Te Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Chalcopyrite Clinozoisite Copper Cubanite Epidote Feldspar Malachite Melonite None
Not in a structural group Pyrite Pyroxene Quartz Rocksalt Sphalerite Spurrite-Afwillite Wurtzite hauchecornite

28 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
Afwillite ()*	Spurrite-Afwillite	Ca₃[SiO₄][SiO₂(OH)₂]·2H₂O	87.9	81.1	1	76091	41
Aguilarite ()*	Acanthite	Ag₄SeS	87.9	81.1	1	76092	87
Albite ()*	Feldspar	Na(AlSi₃O₈)	87.9	81.1	1	76090	8803
Altaite ()*	Rocksalt	PbTe	87.9	81.1	1	76091	489
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	87.9	81.1	1	76091	5509
Bismutohauchecornite ()*	hauchecornite	Ni₉Bi₂S₈	87.9	81.1	1	76091	7
Bornite ()*	None	Cu₅FeS₄	87.9	81.1	2	76091,76092	5516
Bultfonteinite ()*	Spurrite-Afwillite	Ca₂SiO₃(OH)F·H₂O	87.9	81.1	1	76091	20
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	87.9	81.1	2	76091,76092	27198
Cubanite ()*	Cubanite Wurtzite	CuFe₂S₃	87.9	81.1	1	76091	802
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	87.9	81.1	2	76090,76092	8173
Fukalite ()*	None	Ca₄Si₂O₆(CO₃)(OH)₂	87.9	81.1	1	76091	8
Galena ()*	Rocksalt	PbS	87.9	81.1	2	76091,76092	24243
Gold ()*	Copper	Au	87.9	81.1	1	76092	30554
Greenockite ()*	Wurtzite	CdS	87.9	81.1	1	76091	717
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	87.9	81.1	1	76092	741
Hessite ()*	None	Ag₂Te	87.9	81.1	2	76091,76092	804
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	87.9	81.1	1	76090	1271
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	87.9	81.1	1	76091	12537
Melonite ()*	Melonite	NiTe₂	87.9	81.1	1	76091	207
Miharaite ()*	None	PbCu₄FeBiS₆	87.9	81.1	1	76092	19
Naumannite ()*	Not in a structural group	Ag₂Se	87.9	81.1	1	76092	192
Pyrite ()*	Pyrite	FeS₂	87.9	81.1	1	76092	39462
Quartz ()*	Quartz	SiO₂	87.9	81.1	1	76090	61156
Sphalerite ()*	Sphalerite	ZnS	87.9	81.1	1	76092	21482
Spurrite ()*	Spurrite-Afwillite	Ca₅(SiO₄)₂(CO₃)	87.9	81.1	1	76091	54
Wittichenite ()*	None	Cu₃BiS₃	87.9	81.1	2	76091,76092	297
Xonotlite ()*	None	Ca₆Si₆O₁₇(OH)₂	87.9	81.1	1	76091	109

1 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
	Kristen001930	87.9	81.1	84.5±3.4	K-Ar			muscovite	6910-96			Muscovite			230640	Ibara City, Okayama, Japan	Ibara	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...