Galalith

Galalith

Galalith Galalith is a milk casein product that resembles bakelite or celluloid. Sometimes erroneously referred to as “French Bakelite,” this substance was developed in 1895 by German chemists seeking to create a “whiteboard” to replace the...
Gas Bubble

Gas Bubble

Gas Bubble Gas bubbles are the rounded bubbles seen in glass resulting from trapped gasses during the manufacturing process. It is sometimes necessary to use magnification to see these tiny bubbles. Gas bubbles are also often seen in synthetic gemstones and are...
GGG

GGG

GGG Gadolinium Gallium Garnet. A synthetic gemstone used as an early diamond substitute. GGG is manufactured by the Czochralski method and can be manufactured in many colors. With its specific gravity of 7.5, it is a lot denser than a diamond while being a lot softer...
Glass

Glass

Glass Most glass is a man-made material sometimes used to simulate a gemstone. In that case, it’s called paste. There are also three types of naturally occurring glass: Obsidian, Moldavite and Lybian Desert Glass. Vintage Camphor Glass and Diamond Ring....