The Unclassifiables
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Turquoise howlite on black base
Amazonite prism (Madagascar), black base
Amazonite prism (Madagascar), black base
Amazonite prism 550Gr. (Madagascar), black base
Polished ketonite (665g), black base
Polished ketonite (975g), black base
Boulder Opal (two parts) of 345g on black base -Australia-
iridescent Goethite from Tharsis (Andalousia)), black base