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1.15" Polished Admire Pallasite Meteorite (2.5 g) Slice - Kansas
This 1.15" wide (2.5 gram) sliced and polished piece of pallasite meteorite comes from the unobserved Admire meteor fall.
About The Admire Pallasite
The first documented pieces of this meteorite were collected in 1881 by a farmer plowing his field near the city of Admire in Lyon County, Kansas. Its fall was not observed. More than a century later, meteorite hunters returned to the site and discovered more pieces. As of today, over 2 tons have been recovered.
It is classified as a PMG (main group) pallasite, of which the major mineral assemblages consist of troilite, schreibersite, olivine (forsterite), kamacite, and taenite. Its olivine crystals still display beautiful translucence when the pallasite is cut thin, but take on much more angular shapes than olivines in other pallasites.
The first documented pieces of this meteorite were collected in 1881 by a farmer plowing his field near the city of Admire in Lyon County, Kansas. Its fall was not observed. More than a century later, meteorite hunters returned to the site and discovered more pieces. As of today, over 2 tons have been recovered.
It is classified as a PMG (main group) pallasite, of which the major mineral assemblages consist of troilite, schreibersite, olivine (forsterite), kamacite, and taenite. Its olivine crystals still display beautiful translucence when the pallasite is cut thin, but take on much more angular shapes than olivines in other pallasites.
About Pallasites
Pallasite meteorites are a class of stony-iron meteorites. They were once believed to have originated at the core-mantle boundary of asteroids that shattered through impacts, but a recent hypothesis is that they are a mixture of core and mantle minerals.
Pallasite meteorites consist of olivine (peridot) crystals surrounded by iron-nickel matrix. Upon acid etching, some pallasites display interweaving structures known as Widmanstätten patterns (or Thomson lines) in the metallic matrix. These structures are iron-nickel alloy crystals, typically kamacite and taenite, that cooled over millions of years in the vacuum of space.
Pallasites are quite rare: only about 200 are known, and only four have had observed falls. This represents less than 0.2% of all classified meteorites!
Pallasite meteorites are a class of stony-iron meteorites. They were once believed to have originated at the core-mantle boundary of asteroids that shattered through impacts, but a recent hypothesis is that they are a mixture of core and mantle minerals.
Pallasite meteorites consist of olivine (peridot) crystals surrounded by iron-nickel matrix. Upon acid etching, some pallasites display interweaving structures known as Widmanstätten patterns (or Thomson lines) in the metallic matrix. These structures are iron-nickel alloy crystals, typically kamacite and taenite, that cooled over millions of years in the vacuum of space.
Pallasites are quite rare: only about 200 are known, and only four have had observed falls. This represents less than 0.2% of all classified meteorites!
TYPE
Pallasite (PMG)
LOCATION
Admire, Lyon County, Kansas
SIZE
1.15 x .65", .1" thick, Weight: 2.5 grams
CATEGORY
SUB CATEGORY
ITEM
#261228
