semi-precious

adj.used of gemstones having less commercial value than precious stones

同义词：semiprecious

semiprecious
Semi-precious
Semiprecious
Method for producing precious or semi-precious stones
[Ultrastructural aspects of semi-precious alloys in relation to their electrogalvanic behavior]
Effect of surface preparation on bond strength of nonprecious and semi-precious alloys.
Guide to the Identification of Precious and Semi-precious Corals
Current status of semi-precious and conventional gold alloys in restorative dentistry
Petrographical properties of a semi-precious coaly stone, Oltu stone, from eastern Turkey
Chalcedony and Childbirth: Precious and Semi-Precious Stones as Obstetrical Amulets
Inclusions in precious and semi-precious gemstones - a fascinating microcosm
Effect of adherend temperature on bond strengths of resin bonding systems to denture base resin and a semi-precious alloy.
Filling Treatment of Semi-precious Stones