· Onyx · Opal
No. Opal is an amorphous hydrated form of silica.
There different ones because an opal birthstone is for October a topaz is for November
The birthstone for October is Opal.
Coober Pedy in South Australia for Opal rough.Hong Kong for loose stones and jewellery wholesale.
opal is one of them but i dont know the other one
Opal is a solid mineral.Opals are (semi) precious stones.
emerald,ruby,sapphire,diamond,pearl,opal
Contraluz is opal where you see the play of colors by illuminating the back of the stone with light as compared to most opal where the light falls on the front of the stone to see the play of fire, The contaluz opal when illuminated from behind, the stones develop a brilliant colour play.
There are a few possibilities. Jet Black opal Onyx
5 precious stones I know are the Diamond, Ruby, Emerald, Sapphire, and Opal.
only gem stones are Jade, Jadeite, Jasper, Jelly Opal, Jet, Jacinth, Jargon