Home12”x 36” Miner’s Moss (Sluice Box Matting). Mining moss is used to line the bottom of a sluice box to trap gold nuggets, flakes, and smaller particles. • 36" L X 12" W X 10MM• 10mm ThicknessMiner's Moss Sluice Box MattingC$14.95PriceColourQuantityAdd to Cart