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Basic information Name: Bhanupratappur
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No, but it is possible
Year found: 2006
Country: India
Mass:help 374 g
Meteoritical Bulletin:  MB 108  (2020)  L4
Recommended:  L4    [explanation]

This is 1 of 1999 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 Mar 2019
Writeup from MB 108:

Bhanupratappur        20°7’27’’N, 80°58’26’’E

Madhya Pradesh, India

Find, possible fall: 2006 Jun 17 (IST 09:50 Hrs)

Classification: Ordinary chondrite (L4)

History: One piece of the sample (374 g) was retrieved from a reported fall site and collected by an officer of GSI, Central Region, Nagpur. According to the local villagers, a small depression or pit was made on the ground where the meteorite fell (Survey of India Toposheet No. 64D/15). The specimen was handed over to the GSI officer by the Tahsilder of Bhanupratappur on 7 July 2006.

Physical characteristics: The meteorite sample (size ~5.5 × 8 × 5 cm) is mostly covered with fusion crust (thickness ~ 1 mm). The sample is rectangular. In hand specimen, few chondrules are visible by naked eyes. Several anastomosing opaque melt veins are observed.

Petrography: This meteorite is composed of olivine + orthopyroxene (Opx >> Cpx) + clinopyroxene + feldspathic glass + Fe-Ni metals (kamacite and taenite) + troilite. The chondrules are composed of olivine and orthopyroxene, with the interstitial spaces (mesostasis) occupied by feldspathic glass. The size of chondrules varies from 300 - 1000 μm (diameter). Types of chondrules include Porphyritic Olivine (PO), Granular Pyroxene (GP), Porphyritic Pyroxene (PP), Porphyritic Olivine Pyroxene (POP), and Granular Olivine (GO), but chondrule margins are not well defined. Chondrules are fragmented in places. Matrix is relatively fine grained and thoroughly recrystallized. Troilite and kamacite form an intergrowth like texture, in which kamacite blebs and droplets are dessiminated throughout the troilite grain. Fragments of olivine and orthopyroxene are enclosed within opaque melt veins (length >> width; maximum width of the vein ~ 2 mm). Numerous metal (Fe-Ni) droplets (micron to submicrometer scale) are confined within these melt veins / veinlets.

Geochemistry: The mineral chemical data of different textural variants of olivine is Fa25-29Fo71-75; clinoenstatite, En72-77.5Fs20.6-26.3Wo1-4; clinopyroxene (diopside), Wo42.7-48.3En44.5-47Fs7-12; and feldspathic glass (albite to anorthoclase), Ab67.8-85An10.4-14.8Or4.3-17.4.

Classification: Different textural variants of olivine and orthopyroxene show near consistent mineral chemical compositional range (XMg) suggesting Bhanupratappur is an equilibrated ordinary chondrite (L4) having shock stage ~S4-S5.

Specimens: The specimen was officially submitted to the National Meteorite Repository (NMR), GSI, Kolkata on 1 May 2007 by the officer, GSI, Nagpur, Maharashtra, India.

Data from:
  Table 0
  Line 0:
State/Prov/County:Madhya Pradesh
Origin or pseudonym:Mahendrapur village
Date:2006 Jun 17 (IST 09:50 Hrs)
Mass (g):374
Fayalite (mol%):25.7±1.1 (n=17)
Ferrosilite (mol%):22.5 (n=17)
Wollastonite (mol%):0.95-4.18
Classifier:A. Dutta and D. Raychaudhuri, GSI
Type spec mass (g):374
Type spec location:GSI
Main mass:GSI
Comments:Submitted by Director General (DG), GSI.
   and collections
GSI: The Director General, Geological Survey of India, 27, J.L.N Road, Kolkata 700 016, West Bengal, India., India; Website (institutional address; updated 18 Oct 2018)
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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GSI meteorite   

     Recommended::   (20° 7' 27"N, 80° 58' 26"E)

     This is 1 of 14 approved meteorites from Madhya Pradesh, India (plus 1 impact crater)
     This is 1 of 144 approved meteorites from India (plus 10 unapproved names) (plus 2 impact craters)
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