Vintage brutalist ashtray / catch-all in veined onyx and quartz – 1970s

Sell a magnificent brutalist ashtray from the 1960s-1970s, sculpted from a block of natural marbled onyx (banded calcite). This unique piece stands out for its superb contrast: the outer edges have been left in their raw, rocky state, while the central cut has been carefully polished to reveal geological layers in shades of jade green, cream, brown, and orange. The highlight of this piece: the centre of the bowl reveals a stunning natural crystallisation (quartz geode core), which sparkles slightly in the light and guarantees the authenticity of the stone. The object features three discreet notches on the edges. Ideal for original use or repurposed as a trendy catch-all, jewellery dish, or simple mineral decorative object on a Scandinavian sideboard.