pineapple opal

English

Noun

pineapple opal (plural pineapple opals)

1. (gemology, mining) A large raw opal spheroidal gemstone with pineapple-like projection points

   Hypernyms: opal pseudomorph, opal

2. (jewelry) Alternative form of opal pineapple

Related terms

• black opal
• boulder opal
• fire opal
• opal pineapple
• pipe opal