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Because Iron (Fe) oxidizes (combines with oxygen in the environment) very readily, there is no "iron ore" instead, the ores of iron are those combinations that have a high iron content and from which iron can be smelted (melted out) or chemically seperated. The best known of these minerals is Hematite. We run into a problem though when we ask what color is hematite? Primarily, the most common ores are red but, a great deal may be black, depending on inpurities and the degree of weathering/oxydation. Next we have magnetite, which while it may present a more complex crystal form is more commonly found as a black near powder. Try this, take a magnet and run it through anything that looks like a black stain on the open ground. Chances are that what the magnet picks up will be magnetite. It is one of the few minerals that is naturally magnetic (Becomes more strongly magnetic when heated, by the way) Some magnetite is so strongly magnetic as a matter of fact that well formed masses or crystals are found in nature and used to be called "lode stone" and were probably the first magnets found by man. The only source of iron as an ore is from meteorites, meteors of iron nickle are the most common variety and since, there is no oxygen in space for the iron to react with, we often see iron deposits that are really meteor impacts, such as our famous meteor crater here in Arizona. That iron is usually the usual metalic gray or streaked with red or black depending upon the time it has been here and how much it has weathered
What else can I help you with?
Why does iron appear red in rock?
From the oxidation of iron minerals.
The oxidation of minerals that contain iron?
The Answer Is Chemical.
Is iron pyrite malleable?
No, iron pyrite, unlike iron, is not malleable at all. It is a hard, inflexible rock.
Rate of oxidation of iron in sedimentary rock?
Oxidation of iron in any rock is a very rapid process resulting from exposure of the pure iron within the rock to free oxygen. The red iron oxide that we see in sedimentary rocks today was formed millions of years ago during oxygenation events.
What type of rock is magnetite?
iron oxidide
Does an igneous rock contain iron?
Igneous rocks can contain iron, but not all igneous rocks do. The presence of iron in an igneous rock depends on the composition of the magma from which the rock formed. Iron can be found in minerals such as magnetite, hematite, and pyroxene within certain igneous rocks.
Is iron a rock?
Yes. A rock called 'banded iron' is the main ore of iron.
If a Rock formation contain a great deal of iron exposure to water will cause the rock to crumble .why?
ii
Can a rock be any color?
I don't think rocks can be any colour because a group of the same type of rock contain the same minerals which would make all that type of rock the same colour
Why are the blood cells red?
They contain a molecule known as haemoglobin which has an Iron group. When this iron combines with oxygen, it gets a bright red colour.
What part of a rock will undergo rusting?
The minerals within a rock that contain iron, such as iron oxides or sulfides, are the parts that can undergo rusting when exposed to oxygen and water. This process results in the formation of rust or iron oxide on the surface of the rock.
What compound causes limestone rock to be yellow in colour?
Iron oxide can cause yellow to rust colored staining in limestone.
What is the name of chemical that change rock into brownish colour?
The chemical that can change rock into a brownish color is often iron oxide, also known as rust. This process occurs when the iron in the rock reacts with oxygen to form iron oxide, giving the rock a brownish appearance.
How does iron end up in sedimentary rock?
Iron ends up in sedimentary rock primarily through the weathering and erosion of igneous and metamorphic rocks that contain iron minerals. As these rocks break down, iron can be transported by water, wind, or ice into sedimentary environments, where it may precipitate or be incorporated into sediments. Over time, these sediments accumulate, and through processes like compaction and cementation, they form sedimentary rock that may contain iron in various forms, such as iron oxides or iron-bearing minerals.
Is iron a igneous or sedimentary rock?
Iron, or Iron Ore, is a mineral that is found within rock. It would be more likely to be found in igneous rocks as a vein or ore to be mined. However, red sandstone has particles of iron ore within it, which give it the reddy colour.
Is Gabbro iron rich?
Gabbro is not typically rich in iron. It is a dark, coarse-grained rock made up mostly of calcium-rich plagioclase feldspar and pyroxene minerals. While it may contain some iron-bearing minerals, it is not considered an iron-rich rock.
What caused the colour of the wave rock and why?
Wave Rock's distinctive color comes from the iron in the granite rock oxidizing over time, giving it a reddish hue. This process is similar to rusting, where the iron reacts with oxygen in the air. Other minerals in the rock can also contribute to its coloration.
