Tumble Polished > Everything Else Howlites Tumbled Polished Cabs Rough White grey Howlite or possibly Magnesite but think the former mixed colored patterned freeform cab rough gemstone tumbling wire wrapping freeforms Raw uncut lapidary cabs jewelry grade chunk Howlites Tumbled Polished Cabs Rough http://facetroughgemstones.com/gem-store/product_info.php/products_id/4052
