Home > Term: valley brown ore
valley brown ore
A local name for comparatively pure high-grade limonite or brown iron ore in Cambro- Ordovician limestones in the Shenandoah Valley of Virginia.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
