Pijuan 0 Posted April 4 Hello all, I am new to this forum, and I am trying to identify what type of mineral this beautiful egg is made out of. I appreciate any insight, Laura. Quote Share this post Link to post Share on other sites
Bob(AK) 53 Posted April 5 Looks like Alaskan blizzard stone. If so a magnet will stick to it. It is a gabbro of feldspar crystals in a black serpentine material, my guess Quote Share this post Link to post Share on other sites
4meter 182 Posted April 7 Very nice rock egg! My guess is a biotite rich granite. I see some dark "purplish" colored minerals which could be garnet. The presence of garnets indicates some metamorphism so it could be Gneiss. Quote Share this post Link to post Share on other sites
