Small Engravable Heart Charm w/ Free Engraving wind chimes It is the main source

It is the main source of the element strontium

More important than what any historical sources may say

The backside of the pendant has a cutout so you can see light through the stone

Band is about 1/16 inch wide (2mm)

Small Engravable Heart Charm w/ Free Engraving wind chimes It is the main sourceMaterial: 100% Sterling silver Charm width: approximately 1 2 inch (12 mm) Free front side engraving Add an engravable charm to any necklace to personalize it with initials or a special date or message. You can also buy this charm to personalize a necklace you already have at home. This lovely charm is polished to a bright luster to highlight your unique message.