May pebbles and stones be handled on Shabbat even for a needed purpose (l'tzorech gufo)?

Synopsis

Items with no keli status whatsoever (pebbles, stones) are forbidden to handle even l'tzorech gufo, which is stricter than keli she'melachto l'issur. However, through a gentile, all muktzeh may be moved.

Early Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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