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:
Iwagi Island, Inland Sea (Setonaikai), Ehime, Japan

Oldest recorded age at locality: 145
Youngest recorded age at locality: 66

mindat Locality ID: 2178
mindat URL: http://www.mindat.org/loc-2178.html

Tectonic Settings:

Total number of sublocalities beneath "Iwagi Island, Inland Sea (Setonaikai), Ehime, Japan": 0
Total number of bottom-level sublocalities: 0

Latitude: 34°15'40"N
Longitude: 133°8'47"E
Decimal Degree (lat, lon): 34.261111111111,133.14638888889

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.

Allanite	Apatite	Baratovite	Clinozoisite	Epidote	Feldspar	Garnet	Milarite	None	Pectolite
Pyroxene	Quartz	Titanite	Zircon

Aegirine ()*	Albite ()*	Allanite-(Ce) ()*	Andradite ()*	Epidote ()*
Fluorapatite ()*	Hedenbergite ()*	Katayamalite ()*	Microcline ()*	Murakamiite ()*
Pectolite ()*	Quartz ()*	Sugilite ()*	Titanite ()*	Zircon ()*

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 Ca Ce F Fe H K Li Na O P Si Ti Zr

Elements from minerals reported directly at this locality: Al Ca Ce F Fe H K Li Na O P Si Ti Zr

Structural Groups for minerals in this locality:
Allanite Apatite Baratovite Clinozoisite Epidote Feldspar Garnet Milarite None Pectolite
Pyroxene Quartz Titanite Zircon

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	145	66	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	145	66	8803
Allanite-(Ce) ()*	Allanite Epidote	CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)	145	66	706
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	145	66	1534
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	145	66	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	145	66	2740
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	145	66	741
Katayamalite ()*	Baratovite	KLi₃Ca₇Ti₂(SiO₃)₁₂(OH)₂	145	66	2
Microcline ()*	Feldspar	K(AlSi₃O₈)	145	66	4924
Murakamiite ()*	Pectolite	Ca₂LiSi₃O₈(OH)	145	66	1
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)	145	66	363
Quartz ()*	Quartz	SiO₂	145	66	61156
Sugilite ()*	Milarite	KNa₂Fe³⁺₂(Li₃Si₁₂)O₃₀	145	66	15
Titanite ()*	Titanite	CaTi(SiO₄)O	145	66	4899
Zircon ()*	Zircon	Zr(SiO₄)	145	66	5251

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
	Alexandra-0100	145	66	Cretaceous		Age of intrusion									2178	Iwagi Island, Inland Sea (Setonaikai), Ehime, Japan	Iwagi Island	Murakami et al. (1983)	10.2465/minerj.11.261	MJ11_261

Sample	Source Locality	Reference URL
R120164	Iwagi Island, Inland Sea (Setonaikai), Ehime, Japan	https://rruff.info/R120164

All locality data graciously provided by mindat.org

All age data...