<Tr> <Td> 4th </Td> <Td> Blue Topaz </Td> </Tr> <Tr> <Td> 5th </Td> <Td> Rose Quartz </Td> </Tr> <Tr> <Td> 6th </Td> <Td> Amethyst </Td> </Tr> <Tr> <Td> 7th </Td> <Td> Onyx </Td> </Tr>

What is the traditional gift for 40 years of marriage