⚴

A spear, representing the goddess Pallas Athena. Invented soon after discovery in the early 19th century. The head of the spear took on various shapes, depending on typographic convenience, including a triangle △ and a spade ♤ or inverted heart ♡, but is now usually a diamond ◇ or lozenge ◊. The cross at bottom recalls ⟨☿⟩, ⟨♀⟩, ⟨⚳⟩.

⚴

1. (astronomy, astrology) The asteroid 2 Pallas.

• 🜍 (alchemical symbol for sulfur, a variant form of Athena's spear that was sometimes easier to typeset)
• ②

• 
  The published glyph of 1802, alongside that of (1) Ceres
• 
  Variant with a cordate blade
• 
  Variant with a triangular blade, available at 🜍
• 
  Symbol on a violet background