This beautiful black stone is a type of Volcanic glass. Its highly lustrous, reflective undulating surface lends itself to textural mosaics. You can use it as an alternative to black smalti or can combine it with other materials to give your work an extra dimension.
Use glass nippers to cut. Remember though that it is a naturally occurring material, and only split along their crystalline structure which is how they were formed. You cannot impose your will on them and may not be able to cut them exactly as you want. This is part of the beauty of working with minerals because it is like each piece has its own personality that will add life and energy to your mosaic work.
$5 for 100grams plus postage
See other listings for larger pieces of Obsidian
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