The mineral casting is preferably made of {HEAD ~ resin}, hardener and {TAIL ~ mineral fillers} 
The mineral casting is preferably made of { HEAD ~ resin } , hardener and { TAIL ~ mineral fillers }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL