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JMO_Rock_Composition
Science 8 Rock I.D.
Question | Answer |
---|---|
conglomerate | quartz and feldspar dominate, smooth pebbles |
red sandstone | mostly quartz |
argillaceous sandstone | sand sized grain |
shale | clay and weathered, feldspar [kaolin] mica |
limestone | calcite (CaCO3), reacts to HCL |
bituminous coal | dead ferns and other plants that have decayed |
chert | quartz and muscvite [chalcedony = very compact quartz or agate] |
gneiss | light layer -> quartz (granite f...), dark layer ... mica (FeMg) |
schist | mica/kaolin |
quartzite | quartz |
slate | small mud or clay [kaolin] |
marble | calcite therefore reacts to HCL |