U+1F718 "🜘" Alchemical Symbol for Rock Salt Unicode Character

U+1F718 "🜘" Alchemical Symbol for Rock Salt is a historical typographic glyph from the alchemical tradition, representing the substance known as rock salt or halite, which was often associated with purification, preservation, and the base material in early chemical practices. This symbol belongs to the Alchemical Symbols block in Unicode, a collection of characters that preserve the visual language used by medieval and Renaissance alchemists to denote elements, compounds, and processes. Its design typically features a square or angular form with internal markings, reflecting the stylized notation that preceded modern chemical nomenclature, and it finds modern use in historical texts, digital recreations of alchemical manuscripts, and specialized linguistic or symbolic studies.

General Properties

Code Point	U+1F718
Version Added	6.0
Name	Alchemical Symbol for Rock Salt
Block	Alchemical Symbols
General Category	Other Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral

Encodings

HTML Decimal Encoding	🜘
HTML Hex Encoding	🜘
UTF-8 Encoding	0xF0 0x9F 0x9C 0x98
UTF-16 Encoding	0xD83D 0xDF18
UTF-32 Encoding	0x0001F718
C/C++/Java Escape	\ud83d\udf18

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Vertical Orientation	Upright
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other