Space Gems

A really neat blue borosilicate glass cube by lampwork artisan Brandie Rosenberry sits at the center of this loop pendant, surrounded by swirled deep blue borosilicate donut beads encased in clear for depth, bright blue and smoky montana blue glass beads, and some with little silver accents.
The loop is double-strung with strong nylon coated wire and hanging from a satin cord which closes with a lobster-claw clasp that has a teeny starfish charm accent.

Borosilicate glass is a special kind of glass which is actually more durable than normal glass - it is the same kind used in Pyrex and is less dense than ordinary glass and it also requires a much higher temperature to melt compared to ordinary silicate glass.