Related Clues:

• Member of Mohs' scale
• Firm up
• 1 on the Mohs' scale
• The soft end of the Mohs scale
• Become cohesive
• Mineral in pesticide
• Powder substance
• Rash treatment, perhaps
• Gooey stuff
• Music producer Brian
• Soapstone ingredient
• Hair styling stuff
• Work well together
• Bathroom powder
• Toothpaste style