CRW_9164-CaCO3_Chalcedony.jpg by dick lee

dick lee | all galleries >> Galleries >> My Mineral Collection > CRW_9164-CaCO3_Chalcedony.jpg


13 May 2008	2008㏑ichard Lee

Chalcedony - {SiO2} Quartz, a cryptocrystalline variety...Cryptocrystalline (crystals too small to be seen even by a microscope)

other sizes: small medium original auto

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