Smoky quartz stamp pendant

Seal pendant, geometric seal in smoky quartz, not engraved, held by an 18Kt rose gold bail (hallmark: owl) . Vintage work. Gross weight: 7.95 g Height (with bail): 3.90 cm Condition: very slight micro scratches on the gold parts, very slight abrasion of the quartz, see photos. Did you know that quartz is the third most common mineral, after ice and feldspar, on the Earth's surface? Rose Quartz, amethyst , chalcedony, citrine , tiger's eye... quartz comes in a thousand and one forms, to the great pleasure of gemologists and jewelers! All our old pendants .