Silver Tone Stone Pendant Glass Agate

Silver Stone Stone Pendant Glass Agate Measures 2 3/4" - 1 1/8" wide I believe this pendant is artisan made - not marked or signed - I don't think it's sterling but could be - just not marked - Not sure of the stones either - large stone when held up to the light has a brownish tint - the white stones appear to be the same - some kind of agate or glass - Good condition - minor signs of wear - see photos! 4-7-21-A