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APOLLO 15 BASALT
The dark, flat often circular regions called lunar maria (singular form:
mare) are composed of the rock basalt. This
basalt sample was collected near the rim of Hadley Rille. The
fine-grained crystallinity and large holes indicate that this rock crystallized
near the top of a molten lava flow. The grey color of this rock is due
to the presence of dark-colored minerals.
THE
APOLLO 15 LANDING SITE
THE
LANDING SITE AT HADLEY RILLE VIEWED FROM THE LUNAR MODULE DURING DESCENT
THE
BASALT SAMPLE AS FOUND ON THE LUNAR SURFACE
  Anorthosite:
The Highland Rock
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