Quartz is one of the most abundant silicate minerals found in igneous rock.
Agate is a variety of silicon dioxide (SiO2); it is not a silicate.
Ruby is a variety of the mineral corundum, and is not classified as sedimentary, igneous, or metamorphic in the manner of rocks.
This mineral is called glauconite, an iron potassium silicate with very low weathering resistance.
No, igneous rocks are not made up of only one mineral. They are typically composed of a variety of minerals, which are formed by the cooling and solidification of molten rock material. Some common minerals found in igneous rocks include quartz, feldspar, and mica.
Original Answer by ...? (with edit):Sapphire isn't a rock, it's a mineral.who ever wrote this know that people asks "In which type of ROCK does the sapphire falls in " okay and yes it is not a rock and no its not an igneous rock its a metamorphic rock .Edit (by Luke Tomaneng): I can understand the confusion, because sapphire can sometimes be found in igneous rocks (and, as the answer in italic states, some metamorphic rocks as well). Though it is not a "rock" of its own, I suppose sapphire can at times be considered to be part of an igneous rock.
Agate is a variety of silicon dioxide (SiO2); it is not a silicate.
A batrachite is a pale greenish-grey variety of montmorillonite - a soft, claylike silicate mineral.
Amethyst is actually a variety of quartz, and as a mineral, is not classified as igneous, metamorphic, or sedimentary as are rocks.
Ruby is a variety of the mineral corundum, and is not classified as sedimentary, igneous, or metamorphic in the manner of rocks.
An apophyllite is any of a variety of forms of a pale pink or green mineral - a combination of fluoride and silicate of potassium and calcium.
Silicates are found in just about every variety of rock, including sedimentary, igneous and metamorphic. The thing that differentiates silicates from other minerals is the presence of the element silicon in the matrix. It is silicon that silicate minerals are named for. Use link below to check out this huge family of minerals.
It is a rare mineral found only in California, colour from light to dark blue
This mineral is called glauconite, an iron potassium silicate with very low weathering resistance.
Agate is a variety of silicon dioxide (SiO2); it is not a silicate.
Jasper a Intrusive rock is an intrusive rock which is opaque. It is a variety of silica which is impure.
No, igneous rocks are not made up of only one mineral. They are typically composed of a variety of minerals, which are formed by the cooling and solidification of molten rock material. Some common minerals found in igneous rocks include quartz, feldspar, and mica.
"Amazonite" is a beautiful green variety of the mineral known as microcline, which is a common potassium aluminum silicate. For more properties of microcline, see mindat.org.