Ruby Fuchsite is the name for Ruby surrounded by Fuchsite. The presence of chromium at the time of crystallization is what creates the colors of both the red in the ruby and the green in the fuchsite. There is another gemstone that is very different in composition, but looks somewhat similar and that is Ruby Zoisite. Zoisite is much harder than Fuchsite. You can scratch Fuchsite with your nail as it is gypsum, so fairly soft as rocks go.
The Ruby in Ruby Fuchsite refers to real Rubies, which belongs to the corundum family that also includes Sapphires. Only Diamonds are more precious. Fuchsite is fairly soft while rubies are very hard. The Rubies contained in the Fuchsite tend to be opaque rather than the transparent quality that we see faceted as gemstones.
Fuchsite belongs to the muscovite (mica) family and ranges between light green to a yellowish-green to a greenish-blue.
The name Fuchsite is for the German mineralologist and chemist Johann Nepomuk von Fuchs.