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Comilla District, Chittagong Division, Bangladeshi
Regional Level Types
Comilla DistrictDistrict
Chittagong DivisionDivision
BangladeshCountry

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Locality type:
Largest Settlements:
PlacePopulation
Comilla389,411 (2016)
Lākshām82,290 (2016)
Other/historical names associated with this locality:
Tippera District; Cumilla District
Other Languages:
Bengali:
কুমিল্লা জেলা, চট্টগ্রাম বিভাগ, বাংলাদেশ
French:
Comilla, Chittagong, Bangladesh
German:
Kumilla, Chittagong, Bangladesch
Italian:
distretto di Comilla, divisione di Chittagong, Bangladesh
Russian:
Комилла, Читтагонг, Бангладеш
Simplified Chinese:
庫米拉縣, 吉大港專區, 孟加拉国
Spanish:
Comilla, Chittagong, Bangladés
Bishnupriya Manipuri:
কুমিল্লা জিলা, চট্টগ্রাম বিভাগ, বাংলাদেশ
Catalan:
districte de Comilla, divisió de Chittagong, Bangla Desh
Cebuano:
Comilla, Chittagong, Bangladesh
Dutch:
Comilla, Chittagong, Bangladesh
Farsi/Persian:
ناحیه کومیلا, استان چیتاگونگ, بنگلادش
Hindi:
कोमिला जिला, चट्टग्राम विभाग, बांग्लादेश
Japanese:
コミラ県, チッタゴン管区, バングラデシュ
Malayalam:
കോമില ജില്ല, ബംഗ്ലാദേശ്
Newar / Nepal Bhasa:
कुमिल्ला जिल्ला, चट्टग्राम विभाग, बंगलादेश
Portuguese:
Comilla, Chittagong, Bangladesh
Sardinian:
distretto de Comilla
Swedish:
Comilla, Chittagong, Bangladesh
Tamil:
கொமில்லா மாவட்டம், சிட்டகாங் கோட்டம், வங்காளதேசம்
Telugu:
కొమిల్ల జిల్లా, బంగ్లాదేశ్
Traditional Chinese:
庫米拉縣, 吉大港專區, 孟加拉國
Ukrainian:
Комілла, Читтагонг, Бангладеш
Urdu:
کومیلا ضلع, چٹاگانگ ڈویژن, بنگلہ دیش
Vietnamese:
Huyện Comilla, Chittagong, Bangladesh
Western Punjabi:
ضلع کوملا, بنگلہ دیش
Wu Chinese:
库米拉县, 吉大港专区, 孟加拉


Comilla District, officially known as Cumilla District is a district of Bangladesh located about 100 kilometres southeast of Dhaka. Comilla is bordered by Brahmanbaria and Narayanganj districts to the north, Noakhali and Feni districts to the south, Tripura of India to the east, and Munshiganj and Chandpur districts to the west. Comilla district is located in the southeastern part of Bangladesh.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

16 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Anorthite
Formula: Ca(Al2Si2O8)
Description: Anorthitic Plagioclase (2x3mm) clasts specifically noted by Weigand (1975)
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Weigand, P. W. (1975) Pyroxenes in the Patwar mesosiderite: Meteoritics 10(4): 341-351. (Dec. 31, 1975)
Anorthite var. Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971)
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971)
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Description: Subequant Augite in clusters & trains in one fragment
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Weigand, P. W. (1975) Pyroxenes in the Patwar mesosiderite: Meteoritics 10(4): 341-351. (Dec. 31, 1975)
Chromite
Formula: Fe2+Cr3+2O4
Reference: Bunch, T. E. & Keil, K. (1971) Chromite and Ilmenite in non-chondritic meteorites. American Mineralogist 56 (1/2):146-157. (Jan/Feb 1971); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. ; Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.
'Clinopyroxene Subgroup'
Reference: Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.
Copper
Formula: Cu
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. ; Floran, R. J. (1978) Silicate petrography, classification, and origin of the mesosiderites - Review and new observations. In: Lunar and Planetary Science Conference IX, Proceedings. Volume 1. : New York, Pergamon Press, Inc.. pp. 1053-1081.
Cubanite
Formula: CuFe2S3
Description: Ramdohr referred to what was later determined to be Cubanite as 'Chalkopyrrhotite' in his 1973 book.
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
'Fayalite-Forsterite Series'
Description: Olivine (minor) somewhat variable[Fa58-65]
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Delaney, J. S., Nehru, C. E. & Prinz, M. (1980) Olivine Clasts from mesosiderites and Howardites: Clues to the nature of achondritic parent bodies. Proceedings of the Lunar and Planetary Science Conference XI: 1073-1087.
Ilmenite
Formula: Fe2+TiO3
Reference: Bunch, T. E. & Keil, K. (1971) Chromite and Ilmenite in non-chondritic meteorites. American Mineralogist 56 (1/2):146-157. (Jan/Feb 1971); Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. ; Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.
Iron
Formula: Fe
Reference: Powell, B. N. (1969). Petrology and chemistry of mesosiderites—I. textures and composition of nickel-iron. Geochimica et Cosmochimica Acta 33 (7): 789-810. (July 1969); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
Iron var. Kamacite
Formula: (Fe,Ni)
Reference: Powell, B. N. (1969). Petrology and chemistry of mesosiderites—I. textures and composition of nickel-iron. Geochimica et Cosmochimica Acta 33 (7): 789-810. (July 1969); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Floran, R. J. (1978) Silicate petrography, classification, and origin of the mesosiderites - Review and new observations. In: Lunar and Planetary Science Conference IX, Proceedings. Volume 1. : New York, Pergamon Press, Inc.. pp. 1053-1081.
Merrillite
Formula: Ca9NaMg(PO4)7
Reference: Delaney, J. S., Nehru, C. E., Prinz, M. & Harlow, G. E. (1981) Metamorphism in mesosiderites: Proceedings of the Lunar and Planetary Science Conference, 12B: 1315-1342.
'Orthopyroxene Subgroup'
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Weigand, P. W. (1975) Pyroxenes in the Patwar mesosiderite: Meteoritics 10(4): 341-351. (Dec. 31, 1975); Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.
Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Weigand, P. W. (1975) Pyroxenes in the Patwar mesosiderite: Meteoritics 10(4): 341-351. (Dec. 31, 1975)
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Weigand, P. W. (1975) Pyroxenes in the Patwar mesosiderite: Meteoritics 10(4): 341-351. (Dec. 31, 1975); Floran, R. J. (1978) Silicate petrography, classification, and origin of the mesosiderites - Review and new observations. In: Lunar and Planetary Science Conference IX, Proceedings. Volume 1. : New York, Pergamon Press, Inc.. pp. 1053-1081.; Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.
'Plessite'
Reference: Powell, B. N. (1969). Petrology and chemistry of mesosiderites—I. textures and composition of nickel-iron. Geochimica et Cosmochimica Acta 33 (7): 789-810. (July 1969)
Rutile
Formula: TiO2
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
Schreibersite
Formula: (Fe,Ni)3P
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
Taenite
Formula: (Fe,Ni)
Reference: Powell, B. N. (1969). Petrology and chemistry of mesosiderites—I. textures and composition of nickel-iron. Geochimica et Cosmochimica Acta 33 (7): 789-810. (July 1969); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. ; Delaney, J. S., Nehru, C. E., Prinz, M. & Harlow, G. E. (1981) Metamorphism in mesosiderites: Proceedings of the Lunar and Planetary Science Conference, 12B: 1315-1342.; Yang, C. W., Williams, D. B. & Goldstein, J. I. (1994) AEM Study of the Tetrataenite Rim of Metal Phases in Meteorites (abstract). Lunar and Planetary Science Conference XXV, Abstracts: page 1529.
Tetrataenite
Formula: FeNi
Reference: Yang, C. W., Williams, D. B. & Goldstein, J. I. (1994) AEM Study of the Tetrataenite Rim of Metal Phases in Meteorites (abstract). Lunar and Planetary Science Conference XXV, Abstracts: page 1529.
Tridymite
Formula: SiO2
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.
Troilite
Formula: FeS
Reference: Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Iron1.AE.05Fe
var. Kamacite1.AE.05(Fe,Ni)
Schreibersite1.BD.05(Fe,Ni)3P
Taenite1.AE.10(Fe,Ni)
Tetrataenite1.AE.10FeNi
Group 2 - Sulphides and Sulfosalts
Cubanite2.CB.55aCuFe2S3
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Rutile4.DB.05TiO2
Tridymite4.DA.10SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Merrillite8.AC.45Ca9NaMg(PO4)7
Group 9 - Silicates
Anorthite9.FA.35Ca(Al2Si2O8)
var. Bytownite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Orthopyroxene Subgroup'-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'Plessite'-

List of minerals for each chemical element

HHydrogen
H ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
O ChromiteFe2+Cr23+O4
O IlmeniteFe2+TiO3
O AnorthiteCa(Al2Si2O8)
O Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
O Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
O TridymiteSiO2
O RutileTiO2
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O ApatiteCa5(PO4)3(Cl/F/OH)
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O MagnetiteFe2+Fe23+O4
O MerrilliteCa9NaMg(PO4)7
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Na MerrilliteCa9NaMg(PO4)7
MgMagnesium
Mg Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg MerrilliteCa9NaMg(PO4)7
AlAluminium
Al AnorthiteCa(Al2Si2O8)
Al Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si AnorthiteCa(Al2Si2O8)
Si Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Si Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si TridymiteSiO2
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
P Schreibersite(Fe,Ni)3P
P MerrilliteCa9NaMg(PO4)7
SSulfur
S TroiliteFeS
S CubaniteCuFe2S3
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Ca AnorthiteCa(Al2Si2O8)
Ca Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Ca Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca MerrilliteCa9NaMg(PO4)7
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe Iron var. Kamacite(Fe,Ni)
Fe Taenite(Fe,Ni)
Fe ChromiteFe2+Cr23+O4
Fe IlmeniteFe2+TiO3
Fe Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe TroiliteFeS
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Schreibersite(Fe,Ni)3P
Fe CubaniteCuFe2S3
Fe MagnetiteFe2+Fe23+O4
Fe TetrataeniteFeNi
Fe IronFe
NiNickel
Ni Iron var. Kamacite(Fe,Ni)
Ni Taenite(Fe,Ni)
Ni Schreibersite(Fe,Ni)3P
Ni TetrataeniteFeNi
CuCopper
Cu CopperCu
Cu CubaniteCuFe2S3

Fossils

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Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Comilla_District
Wikidata ID:Q1480778
GeoNames ID:1337193

Localities in this Region

Other Regions, Features and Areas that Intersect


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