Pentlandite

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Pentlandite (light gold colored patches) (Fe,Ni)9S8 I with Chalcopyrite, Pyrrhotite, Slate, Eagle Rock Mine, Marquette Co.,Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 II with Chalcopyrite, Pyrrhotite, Slate, Eagle Rock Mine, Marquette Co.,Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8, Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 III with Chalcopyrite, Pyrrhotite, Slate, Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 I, with Chalcopyrite, Pyrrhotite Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 I, with Chalcopyrite, Pyrrhotite Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 I, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 II, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 III, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 IV, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 V, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 VI, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 VII, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 VIII, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 IX, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 XI, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 XII, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 XIII, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan

Pentlandite (light gold colored patches) (Fe,Ni)9S8 XIV, with Copper (yellow), Eagle Rock Mine, Marquette Co., Michigan