pycnite /pikˈnīt/ (geology)

A columnar variety of topaz

• gas-brackets
• gas-buoy
• gas-buoys
• gas-burner
• gas-burners
• gas cap
• gas caps
• gas-carbon
• gas centrifuge
• gas centrifuges
• gas chamber
• gas chambers
• gas chromatography
• gas-coal
• gas-coke
• Gascon
• gasconade
• gasconaded
• gasconader
• gasconaders
• gasconades
• gasconading
• gas-condenser
• gas-condensers
• gasconism