|
Related terms:
alumina
carat
spinel
fusing
cr
verneuil
gemstones
abrasive
bauxite
polishing
beryllium
sapphire
chrysoberyl
mohs scale
gemstone
turquoise
opal
color change
mined
aluminium oxide
hardness
clarity
chromium
inclusions
colorless
impurities
emerald
precious
oxidation state
transparent
Wikipedia sources: Corundum Sapphire Ruby Aluminium oxide Chrysoberyl Abrasive Gemstone Silicon carbide Aluminium Chromium List of minerals Context for words: corundum |
|