It's a logo of a vase. The vase has a small crack on the left side. The crack runs almost all the way up the whole side and juts out towards the middle of the vase in the middle of the crack.
This is a Archeology icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.