Oil and gold.
Iron and magnesium are the two common minerals in basalt. The rock is poor in silica though.
Rocks which are made of minerals can be made up of many minerals and they can also be made up of only one mineral. Generally rocks are made of two or more minerals
Brazil is particularly rich in several minerals, but two of the most well known minerals produced by mines like the minas gerais are Amythest (purple quartz) and Emerald (green beryl).
Silica and Feldspar
The periodic table lists element and not minerals.
No, rocks are at least two kinds of minerals.
Rocks are made of minerals. Only a few minerals are rock forming and most rock is made from a combination of the commonest of these. feldspars, quartz, mica, olivine, calcite, pyroxene and amphiboles
They are divided into puddingstone and somipone. Puddingstone is made of tiny minerals but somipone is made up of HUGE minerals.
The mineral Olivine is a series between two end members, fayalite and forsterite. Fayalite is the iron rich member while forsterite is the magnesium rich member.
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The bulk of Earth's minerals are combinations of elements.
salt and gold.