The seller had different sorts of opalino beads, and I discarded plain roundels for faceted roundels (or oblates). Opalino is the name Italians have given to a glass they invented that is dichroic and pale blue/yellow. In reflected light the glass is somewhat milky and bluish. In transmitted light, the glass turns bright yellow, tending toward orange or even flashes of red. It is pretty stuff. These beads are Chinese.

Unfortunately, over the past six years, a plethora of Chinese glass beads have been passed off as "stone" and particularly "quartz." But it is some of the nicest glass around.

The citrine strand, below, may have begun as amethyst. It is a well known fact that if one were to heat-treat some amethyst, it can turn either green or yellow. So, commercially, some "citrine" is just yellowed amethyst. Ametrine is likewise so-heat-treated (but also found naturally, more rarely).

I selected these because I like the color, and find their look comparable to amber (though also different).

More after dinner....

JDA.