Results 191 to 200 of about 399 (207)

Precious Gemstones

1989
Antoinette Leonard Matlins, Antonio C. Bonanno   +1 more
openaire   +1 more source

new gemstone

2009
openaire   +1 more source

Faded glory: Gemstone simulants and enhancements

Studies in Conservation, 2012
exaly  

Gemstones and jade

2009
openaire   +1 more source

gemstone constant

2009
openaire   +1 more source

treated gemstones

2009
openaire   +1 more source

Synthetic gemstones

Quarterly Reviews, Chemical Society, 1961
openaire   +1 more source

ON GEMSTONES

openaire   +1 more source

coated gemstones

2009
openaire   +1 more source

Bohemian gemstones

2009
openaire   +1 more source