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Angrites

Angrites are achondrites consisting largely of augite.  Augite is a pyroxene containing calcium and, in this case, some titanium and aluminum.  Olivine and plagioclase make up the remaining bulk.  Angrites are among the oldest known igneous rocks and probably came from a large parent body.

Here are four photos each of three different angrites

D’Orbigny

 

NWA 2999 and a pairing

 

Sahara 99555

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