Natural stone & color.  Each strand measures appx 15-16" and the beads measure appx 7x10mm.

Our work in progress designs, shown above, incorporates: 

(Necklace) 
Etched Agate Frosty Tundra 10x6mm Tube Beads, Sterling Silver Oval Link ,
Tierracast Antique White Bronze Plated Leaf Bead Caps, Sterling Silver Snap Bail,
Silver Plated 3mm Smooth Round Beads & is strung on medium Softflex. 

(Earrings)
Etched Agate Frosty Tundra 10x6mm Tube Beads, Antique White Bronze Plated Leaf Bead Caps, Silver Plated 3mm Smooth Round Beads, 
Antique Silver Plated French Earwire (Nickel Free), & Silver Plated Dragonfly Connector