1) Calcium mineral 2) Concrete
Found on
https://www.crosswordclues.com/clue/afwillite
Afwillite is a calcium hydroxide nesosilicate mineral with formula Ca3(SiO3OH)2·2H2O. It occurs as glassy, colorless to white prismatic monoclinic crystals. Its Mohs scale hardness is between 3 and 4. It occurs as an alteration mineral in contact metamorphism of limestone. It occurs in association with apophyllite, natrolite, thaumasite, merwinit...
Found on
http://en.wikipedia.org/wiki/Afwillite
No exact match found.
