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Frontier Mountain 97045
Basic information Name: Frontier Mountain 97045
     This is an OFFICIAL meteorite name.
Abbreviation: FRO 97045
Observed fall: No
Year found: 1997
Country: Antarctica [Collected by Programma Nazionale di Ricerche in Antartide (PNRA), Italy]
Mass:help 14.9 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Eucrite-pmict
Meteoritical Bulletin:  MB 84  (2000)  Eucrite-pmict
MetBase:  v. 7.1  (2006)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 339 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from MB 84:

Frontier Mountain 97045

Polymict eucrite

Fragments and lithic clasts (up to 800 μm) of plagioclase (An90), exsolved pigeonite (host, En38 Wo11; lamellae En33Wo35), zoned pigeonite (En57–42Wo6), and secondarily silica are embedded in a fine-grained, fragmental and glassy matrix; glass spherules up to some tens of micrometers in diameter are rare; contains minor ilmenite and chromite; a single, large clast (one centimeter across) of cumulate eucrite has been observed; O isotopes are δ17O = +1.57‰, δ18O = +3.41‰, Δ17O = +0.20‰. 

Data from:
  MB84
  Table 2
  Line 94:
Latitude:72°59'19"S
Longitude:160°24'25"E
Mass (g):14.9
Pieces:1
Class:Eu "pm"
Shock stage:S3/4
Classifier:A. Sexton and I. A. Franchi (OU)
Comments:see text
Plots: O isotopes:  
Institutions
   and collections
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
Catalogs:
Search for this meteorite in the Museo Nazionale dell'Antartide database (Siena, Italy):   
References: Published in Meteoritical Bulletin, no. 84, MAPS 35, A199-A225 (2000)
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (72° 59' 19"S, 160° 24' 25"E)
     Recommended::   (72° 59' 19"S, 160° 24' 25"E)

Statistics:
     This is 1 of 38937 approved meteorites from Antarctica (plus 5051 unapproved names)
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