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Chris's Digital Detritus
Videotext for the twenty first century.
Erg Chech 002 Achondrite-ung | Meteorite Times Magazine
This is no ordinary meteorite, it’s the andesite crust of a dead protoplanet that predated Earth. At 4.565 byo, Erg Chech 002 is the oldest known magmatic rock. It’s composed primarily of sodic plagioclase, with pyroxene xenocrysts. : geology
A 4,565-My-old andesite from an extinct chondritic protoplanet | PNAS