Auspex Posted August 19, 2009 Share Posted August 19, 2009 I've not cut one but have several pieces of broken balls!!They are seemingly concentric and very hard..! I have to question now whether they are of organic origin...hard to say which conclusion leaves the bigger mystery! "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Archimedes Posted August 19, 2009 Share Posted August 19, 2009 I've not cut one but have several pieces of broken balls!!They are seemingly concentric and very hard..! I do not believe they are a sponge, the Hindia I collect from the silurian radiate out from the center. Your stuff seems, looks, maybe to be some sort of quartz Link to comment Share on other sites More sharing options...
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