A chunk of black onyx from Pakistan, cut into an octahedron and polished. Makes a nice gift. These pretty eggs are made from a mixture of a very hard plastic potting compound and chips of opal. The resulting conglomeration is then shaped and polished into an egg shape. Peridot is the birthstone for August and is a very pretty semi-precious gemstone.
Larger specimens are rare and are highly sought after.
Ray has located a source of very pretty thumbnail specimens. Nice mineral specimens. Many with nice sized cube-shaped crystals. Brilliant gold color. Good looking specimens from Peru.