The 'jade' is translucent polymer clay with green embossing powder mixed in.

 I used a white acrylic paint as the antiquing. .    

Texture Sheet examples: Growth Ring  Open Weave Basket  Sugar Granite  Weathered Wood   Dark Side Wood  Tiny Cracked Growth Ring  Kit-Kit-Dizze Fine Lauhala Crumpled Foil  Shingle Cracked Growth Ring Desert Sandstone Green Sea Urchin  Lava Rock Grass Cloth River Sand Wood Block One  Wood Block Two  Wood Block Three Wood Block Four Wood Block Five Wood Block Six