chrysoprase

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Vintage chrysoprase drop necklace

Variety:  Chrysoprase
Species:  Chalcedony
Mohs Hardness:  7 out of 10
Color:  Semi-transparent to translucent, light to medium-dark yellowish green
RI:  1.535 to 1.539 (1.53 or 1.54 spot reading)
Birefringence:  Usually not detectable
SR/DR/AGG:  AGG
Spectrum:  Not diagnostic
Fluorescence:  Generally inert
SG:  2.60 (+0.10 / -0.05)
Routine Treatments:  None
Additional Enhancements:  Dyeing

chrysoprase facts

Handmade chrysoprase silver brooch

Chrysoprase is the semi-transparent to semi-translucent, light to medium-dark yellowish green variety of chalcedony.

Chrysoprase is the rarest variety of chalcedony and is cherished for its apple green color.

​Fine quality chrysoprase is often mistaken for Imperial jadeite.

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Chrysoprase Gallery

All photos courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA)