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Frontier Mountain 99030
Basic information Name: Frontier Mountain 99030
     This is an OFFICIAL meteorite name.
Abbreviation: FRO 99030
Observed fall: No
Year found: 1999
Country: Antarctica [Collected by Programma Nazionale di Ricerche in Antartide (PNRA), Italy]
Mass:help 4.6 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Lodranite
Meteoritical Bulletin:  MB 84  (2000)  Lodranite
MetBase:  v. 7.1  (2006)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 81 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Writeuphelp
Writeup from MB 84:

Frontier Mountain 99030

Lodranite

A flat (2 x 1.5 x 0.5 mm) metal fragment with abundant silicates; metal is predominantly kamacite and minor taenite (Ni = 7.1 and 28.9 at%, respectively); silicate areas are coarse grained (average grain size >0.5 mm) and consist of orthopyroxene (Fs12Wo3), olivine (Fa10), chromian diopside (Fs4Wo45, average Cr2O3 = 1.36 wt%), interstitial sodic plagioclase (An12–20), and minor troilite and schreibersite; the fragment is likely a sample of the large metal veins occuring in lodranites.

Data from:
  MB84
  Table 2
  Line 143:
Latitude:72°57'49"S
Longitude:160°29'52"E
Mass (g):4.6
Pieces:1
Class:Lodranite
Shock stage:S1
Weathering grade:W0
Fayalite (mol%):10
Ferrosilite (mol%):12
Classifier:R. Carampin, A. M. Fioretti, and G. Molin (UPad)
Comments:see text
Institutions
   and collections
UPad: Istituto di Geoscienze e Georisorse-CNR, University di Padova, Italy (institutional address)
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° 57' 49"S, 160° 29' 52"E)
     Recommended::   (72° 57' 49"S, 160° 29' 52"E)
Note: the NHM and MetBase coordinates are 0.3 m apart

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)
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