[Answer] Consult the figure below. Although granite contains iron atoms we do not mine granite to produce iron because ________.

Answer: the concentration of iron is too small to be economical
Consult the figure below. Although granite contains iron atoms we do not mine granite to produce iron because ________.
Granite (/ ˈ ɡ r æ n ɪ t /) is a coarse-grained igneous rock composed mostly of quartz alkali feldspar and plagioclase.It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground.It is common in the Earth’s continental crust where it is found in various kinds of igneous intrusions.These range in size from dikes only a few inches …
Siderite is a mineral composed of iron (II) carbonate (FeCO 3).It takes its name from the Greek word σίδηρος sideros ” iron “. It is a valuable iron mineral since it is 48% iron and contains no sulfur or phosphorus. Zinc magnesium and manganese commonly substitute for the iron resulting in the siderite-smithsonite siderite-magnesite and siderite-rhodochrosite solid solution series.
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Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey bright yellow or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe 3 O 4 72.4% Fe) hematite (Fe 2 O 3 69.9% Fe) goethite (FeO(OH) 62.9% Fe) limonite (FeO(OH)·n(H 2 O) 55% Fe) or siderite (FeCO …
A rock is an aggregate of one or more minerals or mineraloids. Some rocks such as limestone or quartzite are composed primarily of one mineral – calcite or aragonite in the case of limestone and quartz in the latter case. Other rocks can be defined by relative abundances of key (essential) minerals; a granite is defined by proportions of quartz alkali feldspar and plagioclase feldspar.
Acid mine drainage acid and metalliferous drainage (AMD) or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale ear…

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