What is the symbol for mana?

Excuse me, could you please clarify something for me? I'm having a bit of trouble understanding something related to cryptocurrencies. Could you tell me what the symbol is for mana? I've been trying to research it, but I'm still a bit confused. Is it a specific letter or a combination of letters? Or perhaps it's a unique icon or symbol? I'd really appreciate it if you could shed some light on this matter for me. Thank you so much for your help!