schalstein /shälˈshtīn/

A slaty diabase tuff

• pop songs
• popsy
• popsy-wopsy
• pop the question
• pop-top
• pop-tops
• populace
• populaces
• popular
• popular etymology
• popular front
• popular fronts
• popularisation
• popularisations
• popularise
• popularised
• populariser
• popularisers
• popularises
• popularising
• popularities
• popularity
• popularization
• popularizations
• popularize