- (obsolete) Any bright-coloured kind of chalcedony apart from cornelian.
- (Britain, West Country, Somerset, colloquial) A wasp.
- Jasperware pottery.
- (mineralogy) An opaque, impure variety of quartz, of red, yellow, and other dull colors, breaking conchoidally with a smooth surface.
- (US, slang) A person, a guy, especially seen as naïve or simple.