Results 271 to 280 of about 2,712 (288)

Gemstones:

2011
openaire   +1 more source

Elemental Analysis of Indian Natural Chrysoberyl Gemstones by PIXE Technique

Lecture Notes on Multidisciplinary Industrial Engineering, 2019
exaly  

classification of gemstones

2009
openaire   +1 more source

Gemstones Galore

Rocks & Minerals, 1975
openaire   +1 more source

Silicon carbide gemstones

1998
HUNTER CHARLES ERIC, VERBIEST DIRK
openaire   +3 more sources

stained gemstone

2009
openaire   +1 more source

Identification of gemstones

Choice Reviews Online, 2003
openaire   +1 more source

Gemstone Simulants

1988
openaire   +1 more source

Gemstones

Kurt Nassau
exaly  

new gemstone

2009
openaire   +1 more source