Enter a clue or pattern or both:

The Clue

Rock-forming mineral (8 letter answer)

The Answer

FELDSPAR

Tags


Notes

The answer FELDSPAR is so rare that it appears less than once every 2900 puzzles.

Related Clues

Crystalline mineral
Igneous rock constituent
Mineral that crystallizes from magma
Important constituent of igneous rocks

Definition

FELDSPAR as a noun:

1. (feldspar, felspar) = any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium