Asked by fernanda
Is the following sentence true or false? Most petrified fossils form from quartz and calcite minerals.
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True
False
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Answered by
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False.
Most petrified fossils form when silica (silicification — e.g., opal, chalcedony, quartz) replaces the organic material. Calcite can also permineralize or replace tissues, but silica (quartz-family minerals) is the dominant mineral in petrification.
Most petrified fossils form when silica (silicification — e.g., opal, chalcedony, quartz) replaces the organic material. Calcite can also permineralize or replace tissues, but silica (quartz-family minerals) is the dominant mineral in petrification.
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