<Tr> <Th> Shear modulus </Th> <Td> 43 GPa </Td> </Tr> <Tr> <Th> Bulk modulus </Th> <Td> 70 GPa </Td> </Tr> <Tr> <Th> Poisson ratio </Th> <Td> 0.25 </Td> </Tr> <Tr> <Th> Mohs hardness </Th> <Td> 2.5 </Td> </Tr>

The only common oxide of zinc has the formula zno