GemStone
Gemstone
A gemstone, gem or also called precious or semi-precious stone is a highly attractive and valuable piece of
mineral, which — when cut and polished — is used in
jewelry or other adornments. However certain
rocks, (such as
lapis-lazuli) and
organic materials (such as
amber or
jet) are strictly speaking not minerals, but are still applied in jewelry and adornments, and are therefore often considered a gemstone as well. Some minerals that are too soft to be generally applied in jewelry may still be considered a gemstone because of their remarkable
color,
lustre or other physical properties that have aesthetic value. Rarity is another characteristic that lends value to a gemstone.
See more at Wikipedia.org...
Gemme
Schmuckstein
Kamienie szlachetne
© W niniejszym artykule wykorzystano materialy pochodzace z
Wikipedia® i posiada on Powszechna
Licencje Publiczna GNU
Gema