Input interpretation
plagioclase feldspars | birefringence
Summary
median | 0.00925 highest | 0.0115 (anorthite) lowest | 0.0085 (andesine) distribution |
Ranked values
| | visual | ratios | 6 | andesine | | 0.7391 | 1 5 | oligoclase | | 0.7826 | 1.059 4 | labradorite | | 0.7826 | 1.059 3 | albite | | 0.8261 | 1.118 2 | bytownite | | 0.913 | 1.235 1 | anorthite | | 1 | 1.353
Birefringence rankings
1 | andesine | 0.0085 2 | labradorite | 0.009 3 | oligoclase | 0.009 4 | albite | 0.0095 5 | bytownite | 0.0105 6 | anorthite | 0.0115