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INDIAN BUTTE - H5 Ordinary Chondrite Meteorite End Cut 17.7g - CRUST

Brought to you by: Top Meteorite

  • $ 885.00


 

On Offer: 17.7g Indian butte (late recovery fall) - Ordinary chondrite meteorite end cut with fresh crust found by Larry Atkins. 

Description: This is a 17.7 gram end cut of the Indian Butte meteorite with amazing fusion crust. What I like to call a, "late recovery fall" the fireball for the is meteorite was widely seen and recorded but the meteorite itself was not recovered until several years after the atmospheric event was recorded. This is one of the nicest specimens of this meteorite available today, and was found by my friend Larry Atkins and comes from his personal collection. 

What you get: 17.7g Unclassified chondrite meteorite specimen as shown, membrane storage/display box, original case and certificates form Larry Atkins, and a signed Certificate of Authenticity from TOP Meteorite.

I offer a 100% no questions asked 30 day return policy. 

 

SEE OFFICIAL METEORITICAL SOCIETY ENTRY BELOW

Indian Butte
Basic information Name: Indian Butte
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite. 
Observed fall: Yes
Year fell: 1998
Country: United States 
Mass:help 1721 g
Classification
  history:
Meteoritical Bulletin:   MB 102   (2013)   H5
Recommended:   H5    [explanation]

This is 1 of 9512 approved meteorites (plus 11 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 29 May 2013
Writeuphelp
Writeup from MB 102: 

Indian Butte        32°51.860’N, 112°2.920’W

Pinal County, Arizona, USA

Fell: 7 June 1998

Classification: Ordinary chondrite (H5)

History: The following lines of evidence support a connection between the Indian Butte stones and the "Casa Grande" fireball of 7 June 1998: 1) The discovery location is consistent with the triangulated endpoint based on fireball reports; 2) The location is directly under a Doppler radar return; 3) The stones are fresh (weathering grade W0 to 1). Doppler radar was first used in 2009 to locate the Ash Creek meteorite fall. The Indian Butte radar signal was recently identified during a search of historic falls. Some stones have been marketed under the synonym "Stanfield". A 128 gram stone was discovered by Robert Reisener, Sonny Clary, and Fredric Stephan while investigating a doppler radar signal corresponding to the "Casa Grande" fireball of 7 June 1998. At least 30 other stones were subsequently found. The Doppler signature was identified by Marc Fries and Robert Matson using fireball witness reports collected by Robert Ward. The location of discovery is near the area searched by David Kring and others immediately after the fireball.

Physical characteristics: At least 30 fusion-crusted stones have been recovered, with a total mass of 1721 grams. The fusion crust is fresh, although many stones display slight oxidation on the bottom where they lay on the desert surface. The interior metal is free of limonite rinds, indicative of weathering grade W0.

Petrography: (A.Rubin, UCLA) The chondrite is moderately recrystallized. Polysynthetically twinned low-Ca pyroxene is absent. A few small grains of diopside have grown large enough to be analyzed with the electron microprobe. Plagioclase has also grown fairly coarse; grains up to 25 µm across are present.

Geochemistry: Olivine, Fa17.9±0.3; pyroxene, Fs16.0±0.2Wo1.5±0.2. Mineralogical equilibrium has occurred.

Classification: Ordinary chondrite (H5). Shock stage = S1 and weathering grade = W0.

Specimens: Most stones are privately held; 22.2 grams have been deposited at UCLA.

Data from:
  MB102
  Table 0
  Line 0:
State/Prov/County: Arizona
Origin or pseudonym: Desert
Date: 7 June 1998
Latitude: 32°51.860'N
Longitude: 112°2.920'W
Mass (g): 1721
Pieces: 30
Class: H5
Shock stage: S1
Weathering grade: W0
Fayalite (mol%): 17.9±0.3 (N=16)
Ferrosilite (mol%): 16.0±0.2 (N=19)
Wollastonite (mol%): 1.5±0.2 (N=19)
Classifier: A. Rubin, UCLA
Type spec mass (g): 22.2
Type spec location: UCLA
Main mass: Unknown
Finder: Robert Reisener; Sonny Clary; Fredric Stephan
Comments: Submitted by Robert Reisener

 

From Wikipedia:

"Chondrites are stony (non-metallic) meteorites that have not been modified due to melting or differentiation of the parent body. They are formed when various types of dust and small grains that were present in the early solar system accreted to form primitive asteroids. They are the most common type of meteorite that falls to Earth with estimates for the proportion of the total fall that they represent varying between 85.7% and 86.2%. Their study provides important clues for understanding the origin and age of the Solar System, the synthesis of organic compounds, the origin of life or the presence of water on Earth. One of their characteristics is the presence of chondrules, which are round grains formed by distinct minerals, that normally constitute between 20% and 80% of a chondrite by volume."

ID: INDIANBUTTE1901

 


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