Magnetite (iron oxide Fe3O4) naturally accumulates at the bottom of dry stream channels because it is heavier than other minerals in the area and weathers out of the volcanic rock formations.
factualpending
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CodyEvidence Quote
“this dark streak is iron 23 oxide otherwise known as magnetite and it's heavier than the other minerals in the area so it collects right at the very bottom of the stream channel”
Created: 8/10/2026, 3:17:11 PM
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