Preserved Specimen
Antique 15th Century and Earlier Algerian Natural Specimens
Glass
Antique 15th Century and Earlier Brazilian Natural Specimens
Stone, Metal
20th Century Chinese Organic Modern Natural Specimens
Petrified Wood
Early 20th Century Italian Natural Specimens
Glass
Antique 15th Century and Earlier American Natural Specimens
Stone
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
Antique 15th Century and Earlier Malagasy Natural Specimens
Precious Stone
Antique 15th Century and Earlier Dominican Natural Specimens
Resin
Antique 15th Century and Earlier Burmese Natural Specimens
Other
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
Antique 15th Century and Earlier Moroccan Natural Specimens
Other
Antique 15th Century and Earlier American Natural Specimens
Natural Fiber
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s American Natural Specimens
Tourmaline
2010s American Natural Specimens
Limestone
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
Antique 15th Century and Earlier Malagasy Natural Specimens
Natural Fiber
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s American Natural Specimens
Limestone
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Crystal, Rock Crystal, Agate, Amethyst
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Amethyst, Crystal, Rock Crystal
Mid-20th Century Turkish Natural Specimens
Wood
Antique 15th Century and Earlier English Natural Specimens
Stone
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Amethyst, Crystal, Rock Crystal, Agate
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Turkish Organic Modern Natural Specimens
Wood
2010s Brazilian Natural Specimens
Amethyst, Crystal, Rock Crystal
Antique 15th Century and Earlier American Natural Specimens
Stone
Antique 15th Century and Earlier American Natural Specimens
Bone
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
2010s Brazilian Natural Specimens
Amethyst, Crystal, Rock Crystal
21st Century and Contemporary Chinese Organic Modern Natural Specimens
Stone
2010s Brazilian Natural Specimens
Agate, Amethyst, Crystal, Rock Crystal
Antique 15th Century and Earlier Natural Specimens
Other
Antique 15th Century and Earlier Uruguayan Natural Specimens
Agate, Amethyst, Quartz
Mid-20th Century Turkish Natural Specimens
Wood
Antique Late 19th Century British Natural Specimens
Animal Skin, Glass
Antique 15th Century and Earlier Uruguayan Natural Specimens
Amethyst, Quartz
2010s Brazilian Natural Specimens
Crystal, Rock Crystal, Agate, Amethyst
21st Century and Contemporary Italian Organic Modern Natural Specimens
Rock Crystal
20th Century Spanish Mid-Century Modern Natural Specimens
Wood
Antique 15th Century and Earlier Russian Natural Specimens
Other
21st Century and Contemporary Chinese Organic Modern Natural Specimens
Stone
Early 20th Century Chinese Rustic Natural Specimens
Elm
Antique 15th Century and Earlier Russian Natural Specimens
Iron
Antique 15th Century and Earlier Moroccan Natural Specimens
Cement, Other
2010s Mexican Organic Modern Natural Specimens
Acrylic
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