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:
Comilla District, Chittagong District, Bangladesh

mindat Locality ID: 288154
mindat URL: http://www.mindat.org/loc-288154.html

Tectonic Settings:

Total number of sublocalities beneath "Comilla District, Chittagong District, Bangladesh": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Lamlai Hill Range
Patwar Meteorite

Latitude: 23°17'19"N
Longitude: 91°9'28"E
Decimal Degree (lat, lon): 23.288611111111,91.157777777778

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.

Cerite	Copper	Corundum	Cubanite	Feldspar	Iron	None	Pyroxene	Rutile	Spinel
Tridymite	Wurtzite

Anorthite ()*	Augite ()*	Chromite ()*	Copper ()*	Cubanite ()*
Ilmenite ()*	Iron ()*	Magnetite ()*	Merrillite ()*	Pigeonite ()*
Rutile ()*	Schreibersite ()*	Taenite ()*	Tetrataenite ()*	Tridymite ()*
Troilite ()*

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 Cr Cu Fe Mg Na Ni O P S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Cerite Copper Corundum Cubanite Feldspar Iron None Pyroxene Rutile Spinel
Tridymite Wurtzite

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	1	25036	1036
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1	25036	2060
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	1	25036	3902
Copper ()*	Copper	Cu	1	25036	3846
Cubanite ()*	Cubanite Wurtzite	CuFe₂S₃	1	25036	802
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	25036	5433
Iron ()*	Iron	Fe	1	25036	1089
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	25036	14899
Merrillite ()*	Cerite	Ca₉NaMg(PO₄)₇	1	25036	230
Pigeonite ()*	Pyroxene	(Mg,Fe,Ca)₂Si₂O₆	1	25036	303
Rutile ()*	Rutile	TiO₂	1	25036	5614
Schreibersite ()*	None	(Fe,Ni)₃P	1	25036	374
Taenite ()*	None	(Ni,Fe)	1	25036	703
Tetrataenite ()*	None	FeNi	1	25036	116
Tridymite ()*	Tridymite	SiO₂	1	25036	458
Troilite ()*	None	FeS	1	25036	1044

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...