Input interpretation
![tourmaline group | refractive indices](../image_source/6fafe714fd3430da5abeffeccc890c39.png)
tourmaline group | refractive indices
Table
![elbaite | 0 | 0 | 0 | 1.643 | 1.624 | 0 chromdravite | 0 | 0 | 0 | 1.779 | 1.723 | 0 dravite | 0 | 0 | 0 | 1.643 | 1.621 | 0 liddicoatite | 0 | 0 | 0 | 0 | 1.621 | 0 schorl | 0 | 0 | 0 | 1.666 | 1.637 | 0 uvite | 0 | 0 | 0 | 0 | 1.65 | 0](../image_source/baa163f2cdd9dd25a8b2b45dd4ed1a9c.png)
elbaite | 0 | 0 | 0 | 1.643 | 1.624 | 0 chromdravite | 0 | 0 | 0 | 1.779 | 1.723 | 0 dravite | 0 | 0 | 0 | 1.643 | 1.621 | 0 liddicoatite | 0 | 0 | 0 | 0 | 1.621 | 0 schorl | 0 | 0 | 0 | 1.666 | 1.637 | 0 uvite | 0 | 0 | 0 | 0 | 1.65 | 0