This is a large, very complex MATRIX nugget with lots of interesting indentations and outgrowths, clustered like a windblown tree upon a bit of brown matrix inside. It is a very hefty piece. This came out of an old collection of gold, sold at Tucson in 2005, that had many old California specimens. It was said to be from the Grass Valley district, collected in the 1960s or earlier, and I was later told by a gold expert that in style this does indeed correspond to the Grass Valley area in habit and matrix. 67 grams