What's the difference between clingstone and clinkstone?

Clingstone

Definition:

• (a.) Having the flesh attached closely to the stone, as in some kinds of peaches.
• (n.) A fruit, as a peach, whose flesh adheres to the stone.

Example Sentences:

Clinkstone

Definition:

• (n.) An igneous rock of feldspathic composition, lamellar in structure, and clinking under the hammer. See Phonolite.

Example Sentences:

• (1) The rural migration to urban centers occurred since the 40s in many Latin American countries, including Santiago the capital city of Chile, originated a growing belt of premises built with light poor material (the rests of previous rural habitations, mud, pieces of timber, plastic and cardboard for walls, and cane stalks and artificial clinkstones for roofs) giving raise to many types of slums.