What is "potter's ore"

Potter \Pot"ter\, n. [Cf. F. potier.]

1. One whose occupation is to make earthen vessels.
   --Ps. ii. 9.

   The potter heard, and stopped his wheel.
   --Longfellow.

2. One who hawks crockery or earthenware. [Prov. Eng.]
   --De Quincey.

3. One who pots meats or other eatables.

4. (Zo["o]l.) The red-bellied terrapin. See Terrapin.

   Potter's asthma (Med.), emphysema of the lungs; -- so called because very prevalent among potters.
   --Parkers.

   Potter's clay. See under Clay.

   Potter's field, a public burial place, especially in a city, for paupers, unknown persons, and criminals; -- so named from the field south of Jerusalem, mentioned in
   --Matt. xxvii. 7.

   Potter's ore. See Alquifou.

   Potter's wheel, a horizontal revolving disk on which the clay is molded into form with the hands or tools. ``My thoughts are whirled like a potter's wheel.''
   --Shak.

   Potter wasp (Zo["o]l.), a small solitary wasp ( Eumenes fraternal) which constructs a globular nest of mud and sand in which it deposits insect larv[ae], such as cankerworms, as food for its young.

n. alquifou