Please let me know if you did check your crystals and what you found!
(episode 3 mineral section nature quartz should have 6 faces but NOT all of them come to the point)
Listen to Episode 3 here
Geo 101 section:
– Earths structure, compositional boundaries, rheology boundaries and using seismology to figure it all out!
Ray paths of EQs through the earth note the bending in the outer core and the way it creates a gap on the surface that is the P-wave shadow!
Travel time curve poster from IRIS (group of seismology organizations) the colored dots are arrivals time is on the vertical axis and degree distance is on the horizontal axis.
– crystal systems
– quartz (general)
(blog posts are here and here )
old ass rock article
pristine mantle from earths formation!
BBC and MSNBC articles
The secret to life may be as simple as what happens between the sheets — mica sheets
detailed notes will be available in the next few days so check back!