Chemistry, 13.01.2021 21:40 dakotacsey03
8) Pumice and obsidian are both forms of volcanic glass.
What are one similarity and one difference in the
composition of these two rocks? (p.150)
pumice
ā¢ igneous extrusive rock
composed largely of silica;
light in color, light enough to
float on water
ā¢ commonly used in soaps
and cleansers, concrete and
plaster
obsidian
igneous extrusive rock
composed largely of silica:
dark due todark-colored
minerals distributed within
ā¢ commonly used to make
jewelry and surgical
instruments
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8) Pumice and obsidian are both forms of volcanic glass.
What are one similarity and one difference...
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