Antique sterling silver pin brooch
black onyx stone with gold elements
sterling silver hallmark: 925
dimensions 50 mm x 20 mm
weight 4.6 g
Condition - see photos
Collectable great gift idea
Onyx primarily refers to the parallel banded variety of the silicate mineral chalcedony. Agate and onyx are both varieties of layered chalcedony that differ only in the form of the bands: agate has curved bands and onyx has parallel bands. The colours of its bands range from black to almost every colour.