None of the above, actually. Pyrite is a mineral. Minerals are naturally occurring, inorganic substances. They have a distinctive chemical composition (Pyrite is iron sulfide), a crystalline structure (pyrite can form cubes, although is more often found as an irregular lump), and have distinctive physical properties (such as pyrite's metallic luster, which is why people mistake it for gold). Minerals are what comprise igneous, sedimentary and metamorphic rocks. Pyrite is a mineral, so it is neither igneous, sedimentary, nor metamorphic.
Pyrite could be found in any of the three rock types (sedimentary, igneous, metamorphic).
Sedimentary
It is actually a mineral.
igneous, metamorphic, sedimentary
its igneous and sedimentary and metamorphic
Graphite is a mineral, not a rock that is classified as metamorphic, igneous or sedimentary.
There are three major types of rock: igneous (formed from the cooling and solidification of magma or lava) sedimentary (laid down as sediments) and metamorphic (changed by heat and/or pressure)
53% igneous, 23% metamorphic, and 24% sedimentary
Talc is a mineral and is not classified as metamorphic, sedimentary, or igneous as are rocks.
They are igneous, sedimentary, and metamorphic due to weathering, erosion, heat, and pressure
igneous, sedimentary, metamorphic
metamorphic