1. A reddish opal with small patches of brilliant colour

Derived forms: harlequin opals

Type of: opal

• Cathartidae
• Cathay
• Cathaya
• cathect
• cathectic
• cathedra
• cathedral
• cathemeral
• Cather
• Catherine
• Catherine de Médicis
• Catherine Howard
• Catherine I
• Catherine II
• Catherine of Aragon
• Catherine Parr
• Catherine the Great
• catherine wheel
• catheter
• catheterisation
• catheterise
• catheterization
• catheterize
• cathexis
• cathode