Sterling Silver Scottish Celtic Thistle Spirit of Alba Charm Pendant Charm This pendant features a thistle bloom with Celtic knot work making up its leaves. Made of 925 sterling silver. Nickel free. This sterling silver Scottish thistle pendant is a symbol of Celtic luck and resourcefulness. Measures 1 inch tall by 0.65 inches wide and weighs 2.1 grams. This charm would please anyone of Scottish or Celtic descent.