Boulder-opal Definition

noun

An opal consisting of concretions and fracture fillings in a dark siliceous ironstone matrix.

Wiktionary

Other Word Forms of Boulder-opal

Noun

Singular:
boulder-opal
Plural:
boulder-opals

Find Similar Words

Find similar words to boulder-opal using the buttons below.

Words Starting With

Words Ending With

Unscrambles

boulder-opal