Opal

Definition of Opal

O´pal
n.1.(Min.) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.

Related Words

black opal, fire opal, girasol, harlequin opal, mineral, opalise, opalize, opaque gem
Word:

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Oosperm
Oosphere
Oosporangium
Oospore
Oosporic
Oostegite
Ootheca
Ooticoid
Ootype
Ooze
Ooze leather
oozing
Oozoa
Oozy
Opacate
Opacity
Opacous
Opacular
Opah
Opake
-Opal-
Opalesce
Opalescence
Opalescent
Opaline
Opalize
Opalotype
Opaque
Opaqueness
Ope
Opeidoscope
Opelet
Open
Open chain
Open circuit
Open communion
Open diapason
Open door
Open flank
Open harmony
Open hawse
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