A 23 to 25mm flat coin for Jupiter (usually onyx but sometimes African agate) and 10- and 8-millimeter stones for the Galilean moons. Separated from Jupiter and the moons are two clusters of irregular worlds. These are Trojan asteroids, which accompany Jupiter in its orbit at two gravitationally stable spots 60 degrees ahead and behind of Jupiter in its orbit. There are many Trojan asteroids, but I'm representing specifically the targets of the Lucy mission, which will perform the first flybys of these dim, distant worlds in the mid-2020s. Stones used: *Jupiter: 23mm coin onyx for most necklaces (see exceptions below) *Ganymede: 10.5mm map jasper *Callisto: 10mm indigo gabbro *Europa: 8.3mm sky eye jasper *Io: 8.3mm sky eye jasper *Eurybates: 5x3mm-6x5mm rondelle grey feldspar *Queta: 2.6mm Labradorite *Polymele: 4.2mm black agate (dyed) *Leucus: 4x6 mm rice pietersite *Orus: 4x3 rondelle brown tourmaline *Patroclus: 6 uneven round black and red agate *Menoetius: 6 uneven round black and red agate Necklaces are roughly 23 to 27 inches (60-70 cm) long, made with a variety of spacer beads and metals. I can optionally lengthen necklaces with chain or add extender chains to make length more adjustable. Details: *168: 24 in (61 cm), twisted silver plated brass bugle spacer, slpb lobster clasp with 3in extender *169: 24 in (61 cm), twisted silver plated brass bugle spacer, slpb toggle clasp *170: 23 in (58.5 cm), 2x4mm hematite bugle spacer, slpb toggle clasp *171: 24 in (61 cm), 4x2mm black agate tube spacer, gunmetal-plated brass lobster clasp *172: 23.5 in (59.5 cm), 4x2mm black agate tube spacer, black-plated brass lobster clasp *196: 27 in (68.5 cm), twisted silver plated brass bugle spacer, slpb toggle clasp. This one has a special red quartzite pendant bead for Jupiter.