NATIVE PLATINUM
Pt
Big Flat, Trinity County, California

Platinum, like gold, is often found as rounded nuggets in alluvial (stream) deposits, but platinum is much rarer than gold. The largest platinum nugget from California weighed about 2 1/2 troy ounces.

Size: 1.7 cm across (0.5 oz. troy)

Acquired: 1981 exchange.

Disposition: On display in the Systematic Mineralogy exhibit.

Catalog Number: 22568