Difference between revisions of "Lead"

Revision as of 21:45, 19 June 2017

An unusually hard lead mineral is plattnerite (PbO₂). Its crystal structure is the rutile structure. Just like it is the case with the corresponding minerals of leads group members (carbon excluded):

• Plattnerite PbO₂ (Mohs 5.5; ~9.63g/ccm)
• Cassierite SnO₂ (Mohs 6-7; ~7.1g/ccm)
• Argutite GeO₂ (Mohs 6-7; ~6.28g/ccm)
• Stishovite SiO₂ (Mohs 9-9.5; 4.287g/ccm)