Lakangaon meteorite, Nimar, Andore, Khandwa District, Madhya Pradesh, India i
Regional Level Types
Lakangaon meteorite Meteorite Fall Location
Nimar - not defined -
Andore - not defined -
Khandwa District District
Madhya Pradesh State
India Country

Regional Level Types
Lakangaon meteorite	Meteorite Fall Location
Nimar	- not defined -
Andore	- not defined -
Khandwa District	District
Madhya Pradesh	State
India	Country

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Latitude & Longitude (WGS84):

21° 52' North , 76° 2' East

Latitude & Longitude (decimal):

G#: teyh6hty9

Type:

Meteorite Fall Location

Meteorite Class:

Eucrite monomict breccia meteorite

Meteoritical Society Class:

Eucrite-mmict

Metbull:

View entry in Meteoritical Bulletin Database

Köppen climate type:

As : Tropical dry savanna climate

Mindat Locality ID:

260126

Long-form identifier:

mindat:1:2:260126:0

GUID (UUID V4):

43da1b48-8b26-4ee7-b811-e4cef9fa50bc

Eucrite, monomict
Fell, 24 Nov 1910; 213 g

After detonations, a trail of dust, and a fireball, 2 pieces of a stone were recovered. Lakangaon's primary constituents are pyroxenes (both Ca-poor and Ca-rich varieties) and variable plagioclase (mostly bytownite). At least one Ca-phosphate (merrillite) has also been reported. Lakangaon appears to be more Fe-O rich than most Eucrites, perhaps because it crystalized later than most Eucrites in our collections.

As a small Eucrite Lakangaon's has not received as much attention as other eucrites. However, Lakangaon's 81Kr-Kr cosmic ray exposure age (~25 million years) is similar to that of several eucrite falls, suggesting that Lakangaon is likely to be a normal Eucrite. That, in turn, would be consistent with an original formation on the asteroid 4 Vesta, the apparent parent body of most (but not all) HED meteorites (Howardites, Eucrites, and Diogenites).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

3 valid minerals.

Meteorite/Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ 'Eucrite monomict breccia meteorite'

Detailed Mineral List:

ⓘ Anorthite

Formula: Ca(Al₂Si₂O₈)

References:

Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45.

ⓘ Anorthite var. Bytownite

Formula: (Ca,Na)[Al(Al,Si)Si₂O₈]

References:

Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45.

ⓘ Merrillite

Formula: Ca₉NaMg(PO₄)₇

References:

Hsu, W. & Crozaz, G. (1996) Mineral Chemistry and the petrogenesis of eucrites: I. Noncumulate eucrites: Geochimica et Cosmochimica Acta 60 (22): 4571-4591. (Nov 1996)

ⓘ Pigeonite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

References:

Mason, B. (1967) The Bununu meteorite, and a discussion of the pyroxene-plagioclase achondrites: Geochimica et Cosmochimica Acta 31(1): 107-115.

Hsu, W. & Crozaz, G. (1996) Mineral Chemistry and the petrogenesis of eucrites: I. Noncumulate eucrites: Geochimica et Cosmochimica Acta 60 (22): 4571-4591. (Nov 1996)

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45.

Hsu, W. & Crozaz, G. (1996) Mineral Chemistry and the petrogenesis of eucrites: I. Noncumulate eucrites: Geochimica et Cosmochimica Acta 60 (22): 4571-4591. (Nov 1996)

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

Description: Both Ca-poor and Ca-rich varieties present. Plagioclase (Ab10-19, ave 14) reported by Mason et al., (1979)

References:

Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45.

Hsu, W. & Crozaz, G. (1996) Mineral Chemistry and the petrogenesis of eucrites: I. Noncumulate eucrites: Geochimica et Cosmochimica Acta 60 (22): 4571-4591. (Nov 1996)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Merrillite	8.AC.45	Ca₉NaMg(PO₄)₇
Group 9 - Silicates
ⓘ	Pigeonite	9.DA.10	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Anorthite	9.FA.35	Ca(Al₂Si₂O₈)
ⓘ	var. Bytownite	9.FA.35	(Ca,Na)[Al(Al,Si)Si₂O₈]
Unclassified
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Pyroxene Group'	-	ADSi₂O₆

List of minerals for each chemical element

O	Oxygen
O	ⓘ Anorthite	Ca(Al₂Si₂O₈)
O	ⓘ Anorthite var. Bytownite	(Ca,Na)[Al(Al,Si)Si₂O₈]
O	ⓘ Pigeonite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Merrillite	Ca₉NaMg(PO₄)₇
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Pyroxene Group	ADSi₂O₆
Na	Sodium
Na	ⓘ Anorthite var. Bytownite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Na	ⓘ Merrillite	Ca₉NaMg(PO₄)₇
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Pigeonite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Merrillite	Ca₉NaMg(PO₄)₇
Al	Aluminium
Al	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Al	ⓘ Anorthite var. Bytownite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Si	ⓘ Anorthite var. Bytownite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Si	ⓘ Pigeonite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Pyroxene Group	ADSi₂O₆
P	Phosphorus
P	ⓘ Merrillite	Ca₉NaMg(PO₄)₇
Ca	Calcium
Ca	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Ca	ⓘ Anorthite var. Bytownite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Ca	ⓘ Pigeonite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Merrillite	Ca₉NaMg(PO₄)₇
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Fe	Iron
Fe	ⓘ Pigeonite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

Other Regions, Features and Areas containing this locality

AsiaContinent

India

Deccan TrapsLarge Igneous Province
Madhya Pradesh
- ⭔Indore DivisionDivision

Indian Plate (India Plate)Tectonic Plate

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References

(n.d.)

Mason, B. (1967) The Bununu meteorite, and a discussion of the pyroxene-plagioclase achondrites. Geochimica et Cosmochimica Acta, 31(1), 107-115.

Mason B., Jarosewich, E., Nelen, J.A. (1979) The pyroxene-plagioclase achondrites. Smithsonian Contributions to the Earth Sciences, 22, 27-45.

Warren, P.H., Kallemeyn, G.W., Jerde, E.A. (1985) Geochemistry of Lakangaon, the Most Fe-Rich Eucrite. Meteoritics, 20(4), 779 (Dec 1985).

Hsu, W., Crozaz, G. (1996) Noncumulate Versus Cumulate Eucrites: Heterogeneity of 4 Vesta: Workshop on Evolution of Igneous Asteroids: Focus on Vesta and the HED Meteorites: 11-12 (Jan 1996).

Hsu, W., Crozaz, G. (1996) Mineral Chemistry and the petrogenesis of eucrites: I. Noncumulate eucrites. Geochimica et Cosmochimica Acta, 60(22), 4571-4591 (Nov 1996).

Grady, M.M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.

Strashnov, I., Bland, P.A., Spurný, P., Towner, M.C., Gilmour, J.D. (2013) Times of impacts that deliver samples of Vesta to Earth derived from ultrasensitive 81Kr-Kr cosmic ray exposure age analysis of Eucrites. Geochimica et Cosmochimica Acta, 106, 71-83 (April 2013).

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