Carol Anne Godin LaPointe Posts - TopicsExpress

DENDRITE OPAL Dendritic Opal (or Moss Opal) is the name given to
DENDRITE OPAL Dendritic Opal (or Moss Opal) is the name given to any common opal with tree or fern like silicates or manganese oxides. The stones more...

Webster defines asterism as an optical phenomenon of some crystals
Webster defines asterism as an optical phenomenon of some crystals that exhibit a star-shaped body produced by reflected light or by transmitted light...