Black dust--better than gold.
Handley
J
J
D006046:Gold / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D018377:Neurotransmitter Agents / Q000032:analysis*; D011126:Polypropylenes / Q000737:chemistry*
D018377:Neurotransmitter Agents; D011126:Polypropylenes; D006046:Gold; D006108:Graphite