Silver skins are mountain folk who live in caves. I'll give you a few facts about them:
1. They have silver skin so that they can match the mountain's rock.
2. They all have light/short purple hair.
3. They are mortal.
4. They are tall, averaging at about 6'2".
5. Like my Elves, they try to make it so there are no differences between men and women, feminizing the men and masculating the women.
6. They ride the creatures of the mountains and wear mostly goat hide.

So, what do you think? Oh, and yeah they are in my Musicthiss book or a few of them are.

Elisabeth aka Ana

Moderator's Note: Fixed several spelling, punctuation, capitalization, wording and spelling errors.

cool, but doesn't the purple hair kinda ruin the effect of blending into the mountain rocks?

It would if they didn't cover their hair with a turban like thing. But if they didn't, yes, it would kinda spoil the effect
Elisabeth AKA Ana

They ride a mountain goat like creature that I haven't named yet.
Elisabeth

Do they have any kind of religion or cultural beliefs? And do the associate with the other people groups?

By silver do you mean sort of gray, or metallic silver?

They sound very cool, though!

More of a metallic silver.
To say that they have a "religion" is like to say that all or most humans are christian. It really depends on the influence that the Silver skin had growing up. And they live mostly around humans or they stick to themselves.
Elisabeth

How do they treat emotions, when I first read it, it seemed like they were a solemn race.

Kinda They don't show loving and kindness emotions very well or at all for some of them. But there biggest weakness' is there want for revenge if someone wrongs them. Some Silver Skins get so caught up in revenge and how to achieve it they'll strive to death or do some very self harming thing.
Elisabeth

Could there be an ongoing feud between some families of silverskins?