1. A spinel used as a gemstone (usually dark red)
   - ruby spinel

Type of: spinel

Encyclopedia: Spinel ruby

• milling
• milling machine
• milling machinery
• million
• million floating point operations per second
• million instructions per second
• millionaire
• millionairess
• millionfold
• millionth
• scan
• scandal
• scandalisation
• scandalise
• scandalization
• scandalize
• scandalmonger
• scandalmongering
• scandalous
• scandalously
• scandalousness
• scandent
• Scandentia
• Scandinavia
• Scandinavian