10-Letter Words Containing C,O,N,C,H,A,L

• a milky or greyish translucent to transparent quartz

• Of or pertaining to a conchoid; that may be defined as a conchoid.

• (of a fracture) Irregular, with planar, concentric curves, similar to those on a mussel shell.

• (of a mineral) That fractures with planar concentric curves (e.g., as flint, chert or obsidian).

• the person who is head of government (in several countries)

• the British cabinet minister responsible for finance

• the honorary or titular head of a university

• fish thought to have been extinct since the Cretaceous period but found in 1938 off the coast of Africa

• hypothetical remedy for all ills or diseases; once sought by the alchemists

• a red dyestuff consisting of dried bodies of female cochineal insects

• Mexican red scale insect that feeds on cacti; the source of a red dye