This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+2628 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The Cross of Lorraine (French: Croix de Lorraine), known as the Cross of Anjou in the 16th century, is a heraldic two-barred cross, consisting of a vertical line crossed by two shorter horizontal bars. In most renditions, the horizontal bars are "graded" with the upper bar being the shorter, though variations with the bars of equal length are also seen. The Lorraine name has come to signify several cross variations, including the Patriarchal cross with its bars near the top. The Cross of Lorraine came to the Duchy of Lorraine via the Kingdom of Hungary in the 15th century. Similar two-barred cross symbols prominently feature in heraldry from Poland, Lithuania and Belarus. Its ultimate origins are from the crozier of an Archbishop. The Cross of Lorraine was used as a symbol of Free France during World War II and was earlier used by French patriots to signify desire to reclaim provinces lost to Germany in the Franco-Prussian War.
Representations
System
Representation (click value to copy)
Nº
9768
UTF-8
E2 98 A8
UTF-16
26 28
UTF-32
00 00 26 28
URL-Quoted
%E2%98%A8
HTML hex reference
☨
Wrong windows-1252 Mojibake
☨
Encoding: GB18030 (hex bytes)
81 37 A6 34
RFC 5137
\u'2628'
Bash and Zsh inside echo -e
\u2628
C and C++
\u2628
C#
\u2628
CSS
\002628
Excel
=UNICHAR(9768)
Go
\u2628
JavaScript
\u2628
Modern JavaScript since ES6
\u{2628}
JSON
\u2628
Java
\u2628
Lua
\u{2628}
Matlab
char(9768)
Perl
"\x{2628}"
PHP
\u{2628}
PostgreSQL
U&'\2628'
PowerShell
`u{2628}
Python
\u2628
Ruby
\u{2628}
Rust
\u{2628}
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