Colorless calcite with dusting of red-brown iron Picture jasper and can be scratched or

and can be scratched or broken

leaving some of the aragonite points hollow

This material would most accurately be named "chrysanthemum rhyolite" but you know I can't pass up a goblin-y name like spider jasper

Looking inside the clear quartz of the broken end

Colorless calcite with dusting of red-brown iron Picture jasper and can be scratched orLocale: Santa Eulalia, Chihuahua, Mexico Approx dimensions: 4 x 3 x 1. 25" Approx weight: 388g This calcite specimen from Santa Eulalia has a layer of calcite druzy with several larger modified rhombohedral calcite crystals perched atop. The druzy is well formed, composed of interlocking calcite crystals. The piece appears finely dusted with cinnamon brown color: this is hematite which causes the red and brown coloration of the mineral. UV reactivity