calc-tuff or calc-tufa same as tuff or tufa

• scrollers
• scrolling
• scrolls
• scroll saw
• scroll saws
• scrollwise
• scrollwork
• scrollworks
• scrooge
• Scrooge
• scrooged
• scrooges
• Scrooges
• scrooging
• scroop
• scrooped
• scrooping
• scroops
• scrophularia
• scrophulariaceous
• scrophularias
• scrota
• scrotal
• scrote
• scrotum