Idea of Stones Icon
There are three ovals stacked high. The bottom oval is the biggest and the top oval is the smallest. There's a small line inside each of the three ovals, along the top right side of each oval.
This Stones icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.