<Tr> <Td> Fluor - buergerite </Td> <Td> NaFe Al Si O (BO) O F </Td> </Tr> <Tr> <Td> Fluor - dravite </Td> <Td> NaMg Al Si O (BO) (OH) F </Td> </Tr> <Tr> <Td> Fluor - elbaite </Td> <Td> Na (Li, Al) Al Si O (BO) (OH) F </Td> </Tr> <Tr> <Td> Fluor - liddicoatite </Td> <Td> Ca (Li Al) Al Si O (BO) (OH) F </Td> </Tr>

The name of the commonly used hardness scale is specific gravity organic mohs inorganic