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Lone Island Lake
Basic information Name: Lone Island Lake
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2005
Country: Canada
Mass:help 4.8 kg
Meteoritical Bulletin:  MB 101  (2012)  Iron, IAB-sLL
Recommended:  Iron, IAB-sLL    [explanation]

This is 1 of 35 approved meteorites classified as Iron, IAB-sLL.   [show all]
Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 23 Aug 2012
Writeup from MB 101:

Lone Island Lake        50°0.574’N, 95°23.122’W

Manitoba, Canada

Found: 2005

Classification: Iron meteorite (IAB-sLL)

History: The meteorite was found on a gravel bar of the Whiteshell River just before it empties into Lone Island Lake, in the Whiteshell Provincial Park.

Physical characteristics: (S. Kissin, LHU) Consists of 14 pieces weighing 4.8 kg. The exterior is smooth and highly weathered with rusty areas occuring along cracks. The interior displays pervasive oxidation.

Petrography: (S. Kissin, LHU) Cut and polished surfaces display three prominent lamellae directions at ~60° intersection angles. There is also a fourth direction present as large, irregular kamacite patches. Average kamacite bandwidth is 1.16±0.28 mm (n=15). Kamacite lamellae are polygonalized with a l:w ratio of 15:1 and have developed secondary fracturing in areas of intense oxidation. Neumann bands are present but somewhat obscured by oxidation. Taenite lamellae are narrow and often well preserved. Rhabdites are present within the kamacite, but are not abundant as they seem to have been destroyed by oxidation in some areas. No troilite found.

Geochemistry: (S. Kissin, LHU) Ni=76.2, Co=4.25 (both mg/g); As=15.9, Au=1.77, Cr=71, Cu=142, Ga=80, Ge=400, Ir=1.84, Pt=9.3, Sb=0.29, W=0.81 (all μg/g); Re=170 (ng/g). Obtained by neutron activation analyses.

Classification: (S. Kissin, LHU) Iron meteorite (IAB-sLL), medium octahedrite near the upper limit of this structural classification.

Specimens: Three specimens totaling 511.5 g at UAb, remaining specimens with the finder.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Gravel bar of the Whiteshell River
Mass (g):4800
Class:Iron, IAB-sLL
Shock stage:high
Weathering grade:Severe
Classifier:S. Kissin, LHU
Type spec mass (g):511.5
Type spec location:UAb
Main mass:finder
Finder:Derek Erstelle
Comments:Submitted by C. Herd
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
LHU: Department of Geology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada (institutional address; updated 23 Dec 2011)
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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     Recommended::   (50° 0' 34"N, 95° 23' 7"W)

     This is 1 of 6 approved meteorites from Manitoba, Canada (plus 2 impact craters)
     This is 1 of 66 approved meteorites from Canada (plus 5 unapproved names) (plus 31 impact craters)
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