This property defines the Unicodes which belongs to Geometric Shapes Extended block
Characters like 🞀,🞁,🞂, etc. are listed under Geometric Shapes Extended Block.
106 Characters are present in Geometric Shapes Extended Block starting with the Unicode point U+1F780 that represents the character 🞀.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.