Earth Optics Video 7: Biaxial Flash Figure

[@Mithadon]

Such a wonderful series of videos, thank you!

[@curiosity1016]

Do we have to know the optic sign of the mineral before we determine the fast and slow ray?

[@geoffgeoff143]

Great series but some of the pronouncinations hard to figure out.

[@EarthOpticsVideos]

Thanks for watching! Although I try to speak slowly and clearly, it's still a challenge to narrate these videos after growing up with a pretty heavy Staten Island accent. :D You can always turn on the closed captioning (CC) to help with parts of the video where the narration is unclear. Happy flash figuring!