Chalcedony
Information About Chalcedony: Chalcedony is a variety of quartz. It is also sometimes called Agate, but that term usually only refers to the banded varieties.
COMMON GEM COLORS: Blue to Pruple. Other colors are generally called Agate.
HARDNESS ON MOH'S SCALE: 7
SHAPES FOR CUTTING: Best suited for all cobochon shapes, but is sometimes faceted to cushion cut and other stable facets.
Chalcedony and other gemstones are available online at GEMSTONE SOURCES in individual and parcel quantities in a variety of shapes, grades, colors, cuts, and sizes.
Faceted Gemstones
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