Gold, Quartz
Thumbnail, 1.2 x 0.6 x 0.6 cm
Grass Valley, Nevada City District (Grass Valley District), Nevada Co., California, USA

Bright gold, wrapped around a bit of quartz, from the old sites in Grass Valley in California. I did not weigh it because it is about equally divided between quartz and gold - but from the display side, since the quartz is completely wrapped by the gold, it appears to be almost all gold (a few grams) .