Bidspirit auction | Natural History - Medium Quartz

Natural History - Medium Quartz Rock Crystal Specimen Group [12]. - Comprising various quartz crystal samples, mainly larger prismatic forms. 1.15 kg total, 51-85 mm (2 - 3 3/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [12, No Reserve]