Here are some Silicates I cut, some silicates are Chalcedony but I tend equate Chalcedony with the blues, greys and purplish types, the stone I show are all natural color, the green is Chrysoprase, the blue is Gem Silica Chrysocolla and the reds are Bustamite.....if it looks like a Gummi Bear color to me its the good stuff!