chondrite classification

From the chondrite information page, the petrographic classification scheme works kind of like this: completely altered by water into clay (no known …

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Allende, CV3.2

Allende is heralded as one of the largest recovered falls of the 20th century, and one of the most scientifically important and …

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Dar al Gani 978, C3-ungrouped

This meteorite has several pairings, classified as CV3, CK3, and C3-ungrouped.  DaG 978 is officially listed as a C3-ungrouped.  We purchased and …

unequilibrated chondrite

chondrites

Chondrites are the most primitive group of meteorites.  They have formation ages dating to at least 4.56 billion years before the present, …

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Dhofar 325, CO3.5

The average chondrule diameter of this stone is 100 – 200 µm; it isn’t an L. From the Meteoritical Bulletin: Given the …

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Ivuna, CI1

Type-1 chondrites are fairly rare, partly because they are so fragile.  Atmospheric entry often results in very high mass loss for these …

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Karoonda, CK4

Karoonda is the type specimen of the CK-meteorite class, meaning that it is the first CK chondrite to be known or recognized.  …

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Lucerne Valley, CK4

Per the Meteoritical Bulletin: This 5.6 gram fragment from the find is one of the larger specimens found, and is the largest …

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NWA 6507, CR2

While perusing ebay one day, an armored chondrule caught my eye.  The 5.1 gram stone was completely fusion-crusted and resembled a dull …

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NWA 7411, CV3

This brick of a meteorite came from Greg Hupe, and it’s a specimen that we bring to every outreach event.  Chondrules, CAIs, …