Why this rock is probably not a meteorite:
Like some other rocks depicted here, this rock bears some resemblance
to a feldspathic lunar meteorite because most such meteorites are
regolith breccias. What
distinguishes this rock from a lunar regolith breccia is the shape
of the large white grains. Many of them have very geometric
shapes: rectangles and parallelograms. That's a sure sign of a crystal
that grew in a melt. Regolith breccias consist of pieces of broken
rock that get compressed into a solid rock by the heat and pressure
of a meteoroid impact. Such a mechanism cannot produce or preserve
geometrically shaped clasts.
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