Bidspirit auction | Natural History - Aventurine Gem

Natural History - Aventurine Gem Tree on Amethyst Crystal Geode Section. - Irregular geode matrix with purple amethyst crystals; the metal branches tipped with polished dark and light green aventurine pebbles. 691 grams, 17.5 cm high (6 7/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [No Reserve]