'Piece' in the Bible

Then Job took a piece of broken pottery to scrape himself while he sat among the ashes.

I am just like you before God;I was also pinched off from a piece of clay.

His heart is as firm as a stone; yea, as hard as a piece of the nether millstone.

A club is counted as a piece of straw; it laughs at the rattling of the lance.

Then came there unto him all his brethren, and all his sisters, and all they that had been of his acquaintance before, and did eat bread with him in his house: and they bemoaned him, and comforted him over all the evil that the LORD had brought upon him: every man also gave him a piece of money, and every one an earring of gold.