A variety of green quartz, used in ancient times for making engraved ornaments.
A clear component of blood or lymph containing fibrin.
A state of matter consisting of partially ionized gas and electrons.
A visual effect in which cycles of changing colours are warped in various ways to give the illusion of liquid organic movement.
Blood plasma, free of suspended cells, used in transfusions.
Synonym of plasma gemstone (a dark green variety of chalcedony)