San Carlos Agate Slab - Red Moss Purple Plasma - Mexico gold fortification and specimens of it tend

and specimens of it tend to be rare and expensive

but it's commonly sold as a variety of obsidian—and it's become a favorite among collectors and cutters alike

and some plume-like structures have also been observed

These are 100% authentic fossil specimens from the world-famous Green River Formation in Wyoming

San Carlos Agate Slab - Red Moss Purple Plasma - Mexico gold fortification and specimens of it tendSan Carlos Agate Slab Red Moss with Purple Plasma Mexican Discovery Distinctive San Carlos agate displaying striking red moss formations in slightly purple agate with fascinating golden plasma like patterns. This Mexican moss agate is a somewhat newer discovery that's quickly gaining recognition for its well defined moss with attractive coloration. The combination of colors and patterns creates a unique visual display perfect for creative cabochons.