Mushroom spore

Mushroom Spore is a members-only item on the OSRS Grand Exchange in the ores category.

In-game examine text: "A Bittercap mushroom spore - plant in a mushroom patch."

It has a Grand Exchange buy limit of 200 every four hours, a high alchemy value of 51 gp, and item ID 5282.

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Mushroom Spore shows an active flip setup with a margin of +38 gp and 7,656 trades over the last 24 hours.

At the buy limit of 200 every four hours, max profit per cycle is about 7.6k gp — high margin with healthy liquidity.