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:
Chichi Island (Chichijima), Chichijima Group, Ogasawara Islands, Tokyo, Japan

mindat Locality ID: 32063
mindat URL: http://www.mindat.org/loc-32063.html

Tectonic Settings:

Total number of sublocalities beneath "Chichi Island (Chichijima), Chichijima Group, Ogasawara Islands, Tokyo, Japan": 10
Total number of bottom-level sublocalities: 10

Number of Child Localities: 10
Child Localities:
Kita-hatsuneura (1)
Kita-hatsuneura (2)
Minami-hatsuneura
Miyanohama
Nagasaki
Ogiura
Okumura
Omura
Sakaiura
Susaki

Latitude: 27°6'0"N
Longitude: 142°11'0"E
Decimal Degree (lat, lon): 27.1,142.18333333333

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.

Amorphous	Apophyllite	Calcite	Clay	Erionite	Harmotome	Heulandite	Mica	Mordenite	None
Olivine	Pyrite	Pyroxene	Quartz

Augite ()*	Calcite ()*	Celadonite ()*	Clinoenstatite ()*	Erionite-Ca ()*
Fluorapophyllite-(K) ()*	Forsterite ()*	Heulandite-Ca ()*	Heulandite-Na ()*	Mordenite ()*
Opal ()*	Phillipsite-Ca ()*	Pyrite ()*	Quartz ()*

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 C Ca F Fe H K Mg Na O S Si

Elements from minerals reported directly at this locality: Al Ca F Fe H K Mg Na O S Si

Structural Groups for minerals in this locality:
Amorphous Apophyllite Calcite Clay Erionite Harmotome Heulandite Mica Mordenite None
Olivine Pyrite Pyroxene Quartz

14 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	0		2060
Calcite ()*	Calcite	Ca(CO₃)	4	76672,76674,76675,76680	27770
Celadonite ()*	Mica Clay	KMgFe³⁺Si₄O₁₀(OH)₂	0		309
Clinoenstatite ()*	Pyroxene	Mg₂Si₂O₆	0		94
Erionite-Ca ()*	Erionite	Ca₅[Si₂₆Al₁₀O₇₂]·30H₂O	0		31
Fluorapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀F·8H₂O	0		303
Forsterite ()*	Olivine	Mg₂(SiO₄)	0		1188
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	0		246
Heulandite-Na ()*	Heulandite	(Na,Ca,K)₆(Si,Al)₃₆O₇₂·22H₂O	0		18
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O	2	76673,76681	405
Opal ()*	Amorphous	SiO₂·nH₂O	2	76673,76681	2994
Phillipsite-Ca ()*	Harmotome	Ca₃(Si₁₀Al₆)O₃₂·12H₂O	0		75
Pyrite ()*	Pyrite	FeS₂	0		39462
Quartz ()*	Quartz	SiO₂	8	76673,76674,76675,76676,76677,76678,76680,76681	61156

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...