No, gold is a naturally occurring mineral element.
Nylon is a synthetic material, while cotton is a natural material (resource).
synthetic
PMMA is a synthetic material, made through a polymerization process of methyl methacrylate monomers. It is not naturally occurring in nature.
Gold-198 is a synthetic isotope that is produced artificially by bombarding gold-197 with neutrons in a nuclear reactor.
Yes.
yes
No, Perspex is a form of man made plastic.
Gold-198 is not naturally occuring.
Gold-198 is not naturally occuring.
A portion of it is. The first stamp, "14k", would indicate the purity of gold, that the ring is a solid material (verse a plated material) and the material is 58% gold. The stamp, "dq cz", is exclusive to QVC and a branding of their "Diamonique" product line consisting of cubic zirconia simulated diamond's and other synthetic gem's.
Synthetic Leather
Gold-198 is not naturally occuring.