Hi Steve and List,
"How did this particular NWA get all this shiny black crust?"
This is one of the reasons why Dean's BL stone should really get classified
officially! This somewhat "wet" look of the crust does remind me a little of
achondritic crusts - eucrites, in particular, just think of Millbillillie or
Stannern..
Equally interesting are those "achondrite-like" featureless areas totally devoid
of any chondrules or larger matrix clasts. Instead, they literally consist of
thousands
of minute, colorful, marble-like silicates - mostly pyroxenes (judging from
their colors).
Best wishes,
Bernd
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