This property defines the Unicodes which belongs to Tifinagh block
Characters like ⴰ,ⴱ,ⴲ, etc. are listed under Tifinagh Block.
61 Characters are present in Tifinagh Block starting with the Unicode point U+2D30 that represents the character ⴰ.
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.