Slice of amethyst geode bordered with agate, black base
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Fluorite ball -Marienschacht Mine , Wölsendorf, , Germany-
Golden Agate slice 1.4 Kg on brass base
Eroded Agate 640g on brass base - Poland (Wistoka river)
Amazonite prism (Madagascar), black base
Crystalized branch with gypsum under glass (Wahpool lake, Australia)