Uploaded November 2014 | Updated September 2026, 3 weeks ago
The first characteristic a gemologist uses to identify a gemstone is its chemical composition. For example, diamonds are made of carbon (C) and rubies of aluminium oxide.
The first characteristic a gemologist uses to identify a gemstone is its chemical composition. For example, diamonds are made of carbon (C) and rubies of aluminium oxide.
![Rinkai aspect outlook [Animation]](https://i.ytimg.com/vi/ourHL1SJhnI/mqdefault.jpg "Rinkai aspect outlook [Animation]
The sides outlook of Rinkai I have video material of.
Because something that was taken in the summer there is it is difficult part to hear the sound of the car cooling.")
