Don't see color yet, do you ?" The quartz sediment dwindled by degrees as McTeague spooned it steadily.
Then at last a thin streak of a foreign substance began to show just along the edge.

It was yellow.
Neither spoke.

Cribbens dug his nails into the sand, and ground his mustache between his teeth.

The yellow streak broadened as the quartz sediment washed away.

Cribbens whispered: "We got it, pardner.