A natural Mushroom Rhyolite or also called mushroom Jasper large size oval shape modern style stone pendant with sterling silver 21 gauge square and half round wire wrapping and with a silver plated 20″ x 1.5 mm snake chain necklace
stone size; 41.2 x 25.6 x 7.1 mm 58.60 ct.
overall pendant height, 57.5 mm
This stone is extremely tough, granite like hardness, and takes an awesome polish.
The rock gets its name from the repeating gray pattern that sometimes looks like a mass of growing mushrooms. The formation is an atypical thunder-egg formation where most of the thunder-eggs did not completely form. The thunder-egg started to form, stopped and started again forming the gray overlapping shapes in the Rhyolite. In certain areas a reddish halo surrounds the outside of the gray massive thunder-eggs providing a colorful contrast on the rock. Outside the reddish halo the host rock can be a greenish color and when it is hard enough provides a gray, red and green color combination that is very attractive.