Next, he sprinkled a pinch of the gray powder over the fire.

The eye swung to a tube on the wall, a quarter full of gray powder.

If he wanted to now, he could pound the steps into gray powder.

It can also be a grey or brown powder.

The gray powder was so fine it took a few moments to settle into a small heap.

He poured some gray powder out of the bottle into a small stone dish.

You find the scene of a crime and there's some grey powder on the floor.

He reached for the clay pot and the grey powder, but his hand drew back.

But the fine gray powder does have three major limitations:

There was no more than a couple grams of gray powder.