Polished Bivalve Fossil Clam Shells x 12 From Maintirano Madagascar Etched Between Dioptase being a fairly

Between Dioptase being a fairly rare and sought after mineral (with even small pieces commanding high prices) and this one being exceptionally large

An XL natural bright gemmy deep blue botryoidal Silica Chrysocolla specimen

12 of these beauties

Size = 119 - 151 mm

Size = 121 - 126 mm

Polished Bivalve Fossil Clam Shells x 12 From Maintirano Madagascar Etched Between Dioptase being a fairlyA NOTE FROM NICK A large flat of 12 polished Trigonia fossil Mollusks Bivalve mussel clams shells, these are approximately 160 million years old with intricate textures and a range of colors from subtle earth tones to striking caramel and white contrasts. Just arrived from Madagascar. PRODUCT DESCRIPTION Bivalve Fossil Clams From Maintirano Madagascar Discover the ancient beauty of Bivalve Fossil Clams from Tulear, Madagascar, dating back to the Late