<P> Panning for gold often results in finding pyrite, nicknamed fool's gold, which reflects substantially more light than authentic gold does . Gold in its raw form appears dull and lusterless . </P> <P> The original version of the saying used the word glisters, but glitters long ago became the predominant form . Poet John Dryden used glitter in his 1687 poem The Hind and the Panther . The words glister and glitter have the same meaning . </P> <Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2018) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2018) (Learn how and when to remove this template message) </Td> </Tr>

All that glitters is not gold expansion of idea