Meteorites are pieces of extraterrestrial material that survive impacts with Earth. Scientific analysis on many different types of meteorites reveals they originate from the asteroids, the core-mantle boundaries of asteroids, the Moon and Mars. Meteorites provide valuable scientific information about their parent bodies, and represent "free" extraterrestrial samples. The only other direct method of studying solar system bodies is by in situ exploration. The following specimens are a few examples of some of my more interesting meteorites from my private collection.

Murchison Specimen

Allende Specimen

Tagish Lake Specimen

Almahata Sitta (2008TC3) Specimen

Tissint Mars Meteorite

The Tissint meteorite is an Achondrite Shergottite meteorite that originated from the planet Mars. It was an observed fall over the Tata Province or Morocco on July 18, 2011. The meteorite is unique in that it shows evidence of weathering due to water. It is estimated that this meteorite was ejected from the Martian surface about 700000 years ago. The meteorite's composition consists of olivine macrocrysts that appear to be embedded into a fine-grained matrix composed of the minerals pyroxene and feldspar glass. The meteorite is enriched in magnesium oxide and compatible elements, including cobalt and nickel. There is also a controversial claim put forth by professor Chandra Wickramasinghe that the Tissint meteorite shows evidence of past living organisms as is evident by a globule rich in carbon and oxygen.

NWA 4814

SaU005-008 Martian Meteorite Specimen

NWA 060

Fukang Pallasite

NWA 1929

DaG 400 Lunar Meteorite Specimen

NWA 5000 Lunar Feldspathic Breccia Achondrite

NWA 3625 Specimen

NWA 1109 Eucrite Polymict Specimen

Abrite Achondrite Norton County Meteorite

Martian Zagami Shergottite (SNC) Meteorite Specimen

NWA 6910 Specimen

NWA 2975 Martian Shergottite

Chelyabinsk Chondrite LL5 Specimen

The observed fall of the meteorite occurred on 15 Feb. 2013 0320 UT near coordinates 55.150 N, 61.410 E with an estimated entry speed of 18.6 km/sec. The energy of the meteor before impact is estimated at 486 kilotons TNT. The average interval between impacts of this size is approximately 68 years. The object began to break up at an altitude of about 55 kilometers, and the airburst occurs at approximately 21 kilometers. The energy of the airbust is estimated at 1.24E15 Joules, or 0.3 Megatons. Many fragments from the meteor were recovered.

The dark fusion crust due to the object's pass through the atmosphere, can be seen in the image of the specimen. The parent body of the LL Chondrites are most likely undifferentiated bodies present in the early solar system. They were not part of larger bodies that underwent heating and differentiation. The parent body of this meteorite is suspected to be near-Earth asteroid 2001EO40 (an Apollo asteroid). The meteorite is formed of chondrite breccias (non-metallic stony conglomerate).

Jbilet-Winselwan CM2 Meteorite Specimen

The meteorite specimen shown here is of the type Carbonaceous Chondrite CM2. CM2 type meteorites contain some of the most primative material from the early solar system, complex organic compounds, including amino acids, and water. The presence of volatile organic compounds and water indicates a lack of significant heating since their formation. Their compositions is considered to be similar to the early composition of the primordial solar nebula from which planetesimals condensed.

Trinite (Not a Meteorite) Specimens

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