On the Trail of the Great Canadian Meteorites
ROM
Royal Ontario Museum - Toronto
ROM Meteorite Collection
"Through the Looking Glass"
We arrived in Toronto May 31st during a late spring heat wave. We made our way into the city centre; destination - the Royal Ontario Museum.
The ROM is a world class museum with a very impressive collection of meteorites. It holds a number of unique and important Canadian and Ontario meteorites, as well as international space rocks including lunar and Martian specimens.
Bruderheim, Alberta
This very rare carbonaceous chondrite meteorite was recovered after a witnessed fireball ( Jan 18, 2000 ) with loud explosions which left dust trails.
Several fragments totalling 1 kg were found shortly after, frozen on the surface of Tagish Lake in northern B.C. Specimens were carefully collected. Over 500 other pieces were found over the next few months totalling around 10 kg.
Tagish Lake is believed to be derived from an asteroid, possibly the 92 km diameter asteroid 773 Irmintraud.
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Carbonaceous chondrites contain organic compounds such as amino acids. Tagish Lake also contains nano-diamonds !
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Other pieces are at U of Alberta, U of Calgary and Western University.
Tagish Lake, BC
Giroux and Southampton
These are the two other Canadian pallasites. Giroux was found in Manitoba in 1953, and Southampton was found by a man walking on a Lake Huron beach in 2001.
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Pallasites are felt to be from the transition zone between the mantle and metal core of ancient asteroids.
Osseo, Ontario - Iron - A mass of 46.3 kg was found in 1931.
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Welland, Ontario - Iron - This 8.2 kg meteorite was found in 1888, again by a farmer plowing a field. The main mass was put aside, only to later be re-discovered in a "pile of old iron inside a disused stove" (Buchwald).
Peace River
This L6 chondrite meteorite fell on March 31, 1963, in northwest Alberta.
A bright flash was witnessed at a distance of over 100 miles and explosions were heard.
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The first piece was recovered on April 24.
Photos by Dave Kenny, used courtesy of the ROM (Royal Ontario Museum), Toronto, Canada. ©ROM
St-Robert
Quebec, 1994. Chondrite
Photo credit Hannah Garratt July 2023