Dark (or ferromagnesian) silicates contains ions of iron (iron=ferro) and/or magnesium in their structure.
One is silicon, but I don't know the other:(oxygen
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.
Many minerals are silicates because silicon and oxygen are the two most abundant elements in the Earth's crust. Silicates form when silicon and oxygen combine with other elements such as aluminum, potassium, or magnesium, resulting in a wide variety of mineral compositions and structures. This abundance of silicon and oxygen in the Earth's crust contributes to why silicate minerals are so common.
Silicon and oxygen are two of the most abundant elements in the universe. Oxygen will readily bond with silicon and metals to form minerals. Other similarly abundant elements either sank into Earth's interior or tended to form volatile compounds that were driven away from Earth by the solar wind when the planets were still forming.
All silicate minerals contain silicon and oxygen as their two main elements, which form the basic building blocks of their crystal structures. Additionally, silicate minerals often contain other elements such as aluminum, iron, magnesium, and potassium.
The top two elements in the Earth's crust as a percentage are:Oxygen--47%Silicon--28%
Oxygen and silicon.
Most minerals are composed of two or more elements. Some common minerals, such as quartz, are composed of just two elements (silicon and oxygen), while others may contain multiple elements in their composition.
Oxygen and silicon are the two most abundant elements found in the most common minerals. The most common minerals found on Earth are silicates.
The bulk of Earth's minerals are combinations of elements.
A lot are, but a lot are chemical elements, too. I would guess that more minerals are compounded of two or more elements.
The periodic table lists element and not minerals.
Most minerals are compounds, made up of two or more elements. Very few minerals are composed of only a single element, such as native copper or gold. The majority of minerals form through complex chemical reactions involving multiple elements.
Minerals are naturally occurring inorganic substances with a specific chemical composition and structure, while compounds are substances composed of two or more elements chemically bonded together. Some minerals are compounds, as they are composed of specific chemical elements bonded in a particular way. Conversely, not all compounds are minerals, as compounds can be synthetic or organic in nature.
Native elements such as sulfur, gold, silver, and carbon in the form of diamond and graphite.
Oxygen (O) at 47%, silicon (Si) at 28% are the two most common elements in minerals. Other elements in minerals are aluminum (Al) at 8%, Iron (Fe) at 5%, Calcium (Ca) at 3.5%, Sodium (Na) at 3%, Potassium (K) at 2.5% and Magnesium (Mg) at just 2%. All the other elements together make up only 1% of the earth's crust by weight.
The two major groups of minerals are silicate minerals and non-silicate minerals. Silicate minerals contain silicon and oxygen, while non-silicate minerals do not contain these elements. Silicate minerals make up the vast majority of Earth's crust.