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:
Cihai Iron Mine, Hami Co. (Kumul Co.; Qumul Co.), Hami Prefecture (Kumul Prefecture; Qumul Prefecture), Xinjiang, China

Oldest recorded age at locality: 128.8
Youngest recorded age at locality: 128.2

mindat Locality ID: 144064
mindat URL: http://www.mindat.org/loc-144064.html

Tectonic Settings:

Total number of sublocalities beneath "Cihai Iron Mine, Hami Co. (Kumul Co.; Qumul Co.), Hami Prefecture (Kumul Prefecture; Qumul Prefecture), Xinjiang, China": 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.

Amphibole	Calcite	Chalcopyrite	Clay	Clinozoisite	Cobaltite	Copper	Corundum	Epidote	Feldspar
Garnet	Gypsum	Ilvaite	Löllingite	Malachite	Mica	Nickeline	None	Not in a structural group	Prehnite
Pyrite	Pyroxene	Quartz	Sphalerite	Spinel	Tetrahedrite

Actinolite ()*	Albite ()*	Anhydrite ()*	Augite ()*	Azurite ()*
Bornite ()*	Calcite ()*	Chalcopyrite ()*	Clinozoisite ()*	Cobaltite ()*
Diopside ()*	Epidote ()*	Grossular ()*	Gypsum ()*	Hastingsite ()*
Hematite ()*	Ilmenite ()*	Ilvaite ()*	Lead ()*	Maghemite ()*
Magnetite ()*	Malachite ()*	Muscovite ()*	Prehnite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Safflorite ()*	Siderite ()*	Sphalerite ()*
Tetrahedrite-(Zn) ()*	Tremolite ()*	Zoisite ()*

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 C Ca Co Cu Fe H K Mg Na O Pb S Sb Si Ti Zn

Elements from minerals reported directly at this locality: Al As C Ca Co Cu Fe H K Mg Na O Pb S Sb Si Ti Zn

Structural Groups for minerals in this locality:
Amphibole Calcite Chalcopyrite Clay Clinozoisite Cobaltite Copper Corundum Epidote Feldspar
Garnet Gypsum Ilvaite Löllingite Malachite Mica Nickeline None Not in a structural group Prehnite
Pyrite Pyroxene Quartz Sphalerite Spinel Tetrahedrite

33 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	128.8	128.2	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	128.8	128.2	8803
Anhydrite ()*	Not in a structural group	Ca(SO₄)	128.8	128.2	1588
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	128.8	128.2	2060
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	128.8	128.2	5509
Bornite ()*	None	Cu₅FeS₄	128.8	128.2	5516
Calcite ()*	Calcite	Ca(CO₃)	128.8	128.2	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	128.8	128.2	27198
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	128.8	128.2	1025
Cobaltite ()*	Cobaltite	CoAsS	128.8	128.2	966
Diopside ()*	Pyroxene	CaMgSi₂O₆	128.8	128.2	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	128.8	128.2	8173
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	128.8	128.2	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	128.8	128.2	6890
Hastingsite ()*	Amphibole	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	128.8	128.2	209
Hematite ()*	Corundum	Fe₂O₃	128.8	128.2	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	128.8	128.2	5433
Ilvaite ()*	Ilvaite	CaFe³⁺Fe²⁺₂O(Si₂O₇)(OH)	128.8	128.2	197
Lead ()*	Copper	Pb	128.8	128.2	192
Maghemite ()*	Spinel	(Fe³⁺_0.67 _0.33)Fe³⁺₂O₄	128.8	128.2	229
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	128.8	128.2	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	128.8	128.2	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	128.8	128.2	17380
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	128.8	128.2	1898
Pyrite ()*	Pyrite	FeS₂	128.8	128.2	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	128.8	128.2	9056
Quartz ()*	Quartz	SiO₂	128.8	128.2	61156
Safflorite ()*	Löllingite	CoAs₂	128.8	128.2	317
Siderite ()*	Calcite	Fe(CO₃)	128.8	128.2	6417
Sphalerite ()*	Sphalerite	ZnS	128.8	128.2	21482
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	128.8	128.2	5317
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	128.8	128.2	2562
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	128.8	128.2	1025

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
	DeepDive-Co-0052	128.8	128.2	128.5	U-Pb	age interpreted as the crystallization age for the Cihai diabase dyke		zircon				Zircon			144064	Cihai Iron Mine, Hami Co. (Kumul Co.; Qumul Co.), Hami Prefecture (Kumul Prefecture; Qumul Prefecture), Xinjiang, China	Cihai iron ore deposits	Hou et al. (2013)	10.1016/j.jseaes.2013.03.016	JAES70-71_231	age interpreted as the crystallization age for the Cihai diabase dyke

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...