Rub el Hizb


The Rub el Hizb is an Islamic symbol in the shape of an octagram, represented as two overlapping squares, which is found on a number of emblems and flags. In Arabic, Rubʻ means "one fourth, quarter", while Hizb means a group or party. Initially, it was used in the Quran, which is divided into 60 Hizb ; the symbol determines every quarter of Hizb, while the Hizb is one half of a juz'. The main purpose of this dividing system is to facilitate recitation of the Qur'an.
The symbol is used as a marker for the end of a chapter in Arabic calligraphy. It is represented by two overlapping squares as in the Unicode glyph ۞ at U+06DE.

Uses

The Rub el Hizb can be seen on:
The cross-sections of the Petronas Twin Towers are based on the Rub el Hizb, but with extra circular sectors added to increase the total floor space.

Al-Quds star

The al-Quds star is an adaptation of the Islamic Rub el Hizb symbol which is specifically associated with Jerusalem, Palestine.
The eight-pointed star design is inspired by the octagonal ground-plan of the Umayyad Dome of the Rock shrine, as well as by the standard Rub el Hizb symbol.
Versions of the al-Quds Star are used as: