'True alabaster is a variety of this mineral used for making plaster of Paris'
gypsum (calcium sulfate)
ROCKS & MINERALS: True alabaster is a variety of this mineral used for making plaster of Paris
True alabaster is a variety of this mineral used for making plaster of Paris
True alabaster is a variety of this mineral used for making plaster of Paris
ROCKS & MINERALS
gypsum calcium sulfate
ROCKS & MINERALS