Indonesian Fossil Coral Rough Chunk! Black Obsidian Weight: Approx 20 Lbs

Weight: Approx  20  Lbs

Starburst Rhyolite is a unique form of Volcanic Rhyolite that has a really awesome signature design

There are some with fractures

Many of these I'm not sure on the identification

or pattern within it

Indonesian Fossil Coral Rough Chunk! Black Obsidian Weight: Approx 20 LbsIndonesian Fossil Coral is a form of Silicated Coral of Lapidary grade! Dug in Indonesia, this gorgeous material often has a white skin, and in the rough, still retains the coral shape! It is well known for its starburst flowers, and when cut right, can display them with amazing clarity! It can make some gorgeous cabochons, and take a gloss polish! It can also have a wide variety of colors, with butterscotch or white being the most common! This is a