1) Aventurine 2) British pop girl group 3) Glass art 4) Impact crater on Mars 5) Sunstone 
[gemstone] Goldstone is a type of glittering glass made in a low-oxygen reducing atmosphere. The finished product can take a smooth polish and be carved into beads, figurines, or other artifacts suitable for semiprecious stone, and in fact goldstone is often mistaken for or misrepresented as a natural material. == Nomenclature == Another co...
[n] - aventurine spangled densely with fine gold-colored particles
aventurine.