> For the complete documentation index, see [llms.txt](https://baked-beans-solana.gitbook.io/baked-beans-solana-miner-documentation-outline/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://baked-beans-solana.gitbook.io/baked-beans-solana-miner-documentation-outline/account-systems-upgrade/gems.md). # Gems ## Baked Beans on Solana Gems A Gem can be socketed into your Baked Beans Miner to give it a permanent buff. Gem's can be purchased from the Baked Beans Store, Marketplace or won from Cans of Beans. * You can swap out any gem you want for a new Gem, and store that gem in your wallet for later use. * Gem's can be re-sold by the user on the second hand marketplace. * There are three categories of Gems, Miner Gems, Referral Gems and Experience Gems and 4 rarity's that can be socketed, Common, Rare, Epic and Legendary. * The user's account level determines the amount and rarity of Gems that can be socketed. ### Miner Gems These Gems increase the user's Miner ROI and APR interest percentage for increased daily rewards * **Common:** Increases ROI by 0.1% * **Rare:** Increases ROI by 0.25% * **Epic:** Increases ROI by 0.5% * **Legendary:** Increases ROI by 1% ### Referral Gems These Gems increase the user's Referral Link ROI percentage for increased daily referral rewards * **Common:** Increases ROI by 0.1% * **Rare:** Increases ROI by 0.25% * **Epic:** Increases ROI by 0.5% * **Legendary:** Increases ROI by 1% ### Experience Gems These Gems increase the user accounts XP multiplier, increasing the amount of XP that they can gain to level up. * **Common:** Increases XP Multiplier by 0.1% * **Rare:** Increases XP Multiplier by 0.25% * **Epic:** Increases XP Multiplier by 0.5% * **Legendary:** Increases XP Multiplier by 1%