GeologyRocksCan someone help identify this Volcanic Glass?
Oct
19
03:13
My grandmother gave me this. It's about the size of a keyboard, very very heavy, opaque... My grandmother said that she took it to a geologist when she was young and was told it was formed during the last ice age. But how could this be known?
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Is it not obsidian? Where
Mon, 10/31/2011 - 21:19Is it not obsidian? Where are all the experts on here?
http://www.jennymeszaros-author.co.uk/