A beautiful, silky-smooth surface and satin finish, black silk stone is an onyx marble. Beads feature black banding wraps around a grey-to-white background.
The soft nature of the stone makes it an ideal choice for use in short necklace and earrings designs that are protected from heavy abuse.
Beads>Grade C>Black Silk StoneBeadsGrade CBlack Silk StoneMulti-coloredBall4mmNaturalhttp://www.firemountaingems.com/itemdetails/h209293gsH209293GSBead, black silk stone (natural), 4mm round, C grade, Mohs hardness 4. Sold per 16-inch strand.//image1.fmgstatic.com/images/p9293gsb(2).jpg6.286.28As Low As $2.95 per strand