D defs.my
Entry 1 sense Webster, 1913

Boltonite

· Bol·ton·ite · IPA
01 n. A granular mineral of a grayish or yellowish color, found in Bolton, Massachusetts. It is a silicate of magnesium, belonging to the chrysol…
  1. 1.
    A granular mineral of a grayish or yellowish color, found in Bolton, Massachusetts. It is a silicate of magnesium, belonging to the chrysolite family.(Min.)