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Gem and Rock shows in the USA
SEM image showing ilmenite-hematite (il-hm), chalcopyrite (ccpy), and magnetite-ulvospinel (mte-usp). Detailed SEM image shows composite grain of sudburyite and safflorite (7 x 4 µm).
Fesh road cut for Interstate 83 at Reesers Summit, one mile south of the exit for the Pennsylvania Turnpike between Harrisburg and York in York County, Pennsylvania, USA.
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