Are these garnets??

[Huelten]

So the backstory is that i never have been into gems much but after a recent prospecting trip for gold i found a small emerald in my pan and needless to say i think i'm slightly pumped about gem possibilities now. I did some research after i noticed some black rocks that were constantly in my heavies and i'm thinking they could be raw garnets? but i'm not sure, i want to open it up to some with better knowledge of the subject so ive attached a picture with red marks next to the suspected "garnets". Any help would be awesome, i'm just wondering if i've genuinely found garnets or if i'm incorrect.

Thanks

 

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[IdahoGoldGettR]

Garnets look better when surrounded by gold.

 

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