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I could find articles in Wikipedia that explain what each typographical symbol means and how it is used in print (e.g. pilcrow, section, dagger) but I couldn't find any information about the Lozenge mark/sign/symbol/character (◊ or Unicode U+25CA).

I know it's being used in modal logic and math, but is it (or has it ever been) used in English text?

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    Are you interested in white or black lozange?
    – user19148
    Commented Jul 22, 2012 at 16:04
  • @Carlo_R No preference really. I am just curious as to why I couldn't find any reference to its typographical use other than logic or math. Does this mean that, unlike ¶ or § or †, it hasn't really been used in textbooks other than the math ones? Commented Jul 22, 2012 at 16:08
  • 1
    I reckon it could be used as a bullet. Commented Jul 22, 2012 at 16:23

3 Answers 3

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Every entry of lozenge in the OED lists a heraldic, artistic, or mathematical usage.

From this we can assert that any usage in English text has, so far, been ornamental (e.g. as a list marker), or descriptive of things that incorporate the shape itself.

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It's not used in text (although it could be used decoratively, in a border or as a rule or bullet). It's a mathematical symbol.

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As a tool only:

◊ / ⟠ / ⧫ / ⬨ / ⬪ / ⬫ / ⬧ are variants all available from All-Codes.

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