Iron Ore is a chemical sedimentary rock that forms when iron and oxygen (and sometimes other substances) combine in solution and deposit as a sediment. Hematite (shown above) is the most common sedimentary iron ore mineral. The specimen shown above is about two inches (five centimeters) across.

NEW YORK STATE OIL GAS AND MINERAL RESOURCES | 2019 View of a garnet mine in New York State with piles of garnet separated from the source rock. Properties Composition: Iron aluminum silie Fe 3 Al 2 (SiO 4) 3 or (Fe, Mg, Mn) 3 Al 2 (SiO 4) 3 Color: Dark red, reddishbrown, black Hardness: 7 – on Mohs scale Structure: Dodecahedral (12 ...

A mineral is different from a rock, which is made up of combinations of different minerals and does not always have the same chemical composition. Some rocks, such as limestone, are made up almost entirely of one substance, while others contain many different ones. The specific minerals in a rock may vary widely as well.

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Photo about Minerals of Iron Rock minerals for industry isolate on green background. Image of iron, white, hematite

Rock Type: sedimentary Composition: fragments of other rocks and minerals cemented by silica, calcite, or iron oxide. Environment: The rock fragments can be rounded from being rolled along a stream bed or a beach during transportation. If the fragments embedded in the matrix are angular instead of rounded, the rock is called a breccia ...

A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. Common minerals include quartz, feldspar, mica, amphibole, olivine, and rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter.

Tourmaline. This is called a watermelon tourmaline because of the red to greenish coloration. This is a boron silie mineral. It is also a semiprecious stone. Aluminium, iron, magnesium, sodium, lithium and potassium may be found in this gem in varying amounts. The above minerals vary it color.

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