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Lut 004
Basic information Name: Lut 004
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2013
Country: Iran
Mass:help 505 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  H3
Recommended:  H3    [explanation]

This is 1 of 620 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 Jul 2014
Writeuphelp
Writeup from MB 103:

Lut 004        30°16’23"N, 59°21’36"E

Kerman, Iran

Found: 2013 Mar 21

Classification: Ordinary chondrite (H3)

History: A single stone found during an expedition in the Lut desert of Iran, on sand dunes known to locals as Rig-e Yalan. Two pieces totalling 34.5 g were donated to Cascadia on May 1, 2013.

Physical characteristics: Physical: Cut face shows a medium to dark brown interior with numerous distinct chondrules. Remnant metal and sulfide is unevenly distributed in hand specimen; more weathered areas are somewhat porous. Exterior is covered by a dark brown weathering patina.

Petrography: (M. Hutson and A. Ruzicka, Cascadia) In thin section the specimen shows tightly packed chondrules of typical 0.2-0.5 mm diameter (average 0.4±0.2, N=69 chondrules) with only a little intervening opaque matrix. The matrix is the fine-grained matrix typical of type 3 ordinary chondrites. Metal, weathered metal, and sulfide together comprise approx. 15 vol% of the thin section. Approximately 85-95% of the metal and troilite have been replaced during weathering.

Geochemistry: BSE imaging shows that the meteorite is highly unequilibrated. Compositions of major phases show a wide spread in values, and include olivine Fa21.8±8.7 (median Fa=26.4, N=44), and low-Ca pyroxene Wo1.1±1.2Fs12.7±10.2En86.2±10.5 (N=25). A silica polymorph phase was observed in two chondrules.

Classification: H3 chondrite implied by metal content and chondrule size, estimated low subtype (<3.6) based on BSE imaging and compositional spread.

Specimens: Two pieces (31.1 and 0.2 g), one polished thin section, and a stub are on deposit at Cascadia. Mr. Maziar Nazari and Mr. Kiyan Babazadeh hold the main mass (PO Box 17665-414, Tehran, Iran).

Data from:
  MB103
  Table 0
  Line 0:
State/Prov/County:Kerman
Origin or pseudonym:sand dunes
Date:2013 Mar 21
Latitude:30°16'23"N
Longitude:59°21'36"E
Mass (g):504.6
Pieces:1
Class:H3
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):21.8±8.7
Ferrosilite (mol%):12.7±10.2
Wollastonite (mol%):1.1±1.2
Classifier:M. Hutson and A. Ruzicka, Cascadia
Type spec mass (g):31.3
Type spec location:Cascadia
Main mass:Mr. Maziar Nazari and Mr. Kiyan Babazadeh
Finder:Mazier Nazari, Kiyan Babazadeh, Ashkan Hedayati, Mohsen Adib
Comments:Lab number CML0742, field number Lut #504.6; submitted by Alex Ruzicka
Institutions
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography:

Iran
Coordinates:
     Recommended::   (30° 16' 23"N, 59° 21' 36"E)

Statistics:
     This is 1 of 299 approved meteorites from Kerman, Iran
     This is 1 of 326 approved meteorites from Iran (plus 1 unapproved name)
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