Input interpretation
group 9 elements | Mohs hardness
Results
cobalt | 5 (≈ apatite) rhodium | 6 (≈ microcline) iridium | 6.5 (between microcline and quartz) meitnerium | (data not available)
group 9 elements | Mohs hardness | 6 (median) (based on 3 values; 1 unavailable)
Ranked values
| | visual | ratios | 3 | cobalt | | 0.8 | 1 2 | rhodium | | 0.9 | 1.2 1 | iridium | | 1 | 1.3