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Chemistry, 20.10.2019 07:00 Briza19

Plz ! i'll give brainliest to whoever answers this along with 15 points!

talc
(asphalt)
gypsum
(fingernail)
calcite
(copper coin)
fluorite
apatite
(knife blade)
feldspar
(steel file)
quartz
topaz
corundum
diamond

which of the substances listed above are pure elements?

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