Ruby is a variety of the mineral corundum, and is not classified as sedimentary, igneous, or metamorphic in the manner of rocks.
The presence of intrusive magma in an area (known as contact metamorphism), or of tectonic plate interactions on a larger scale (known as regional metamorphism) puts the igneous and sedimentary rocks and minerals under heat or pressure which may cause changes in their chemistry and crystal structure. The result is the creation of metamorphic rocks. Gemstones associated with metamorphic rock include the beryls, jade, lapis lazuli, turquoise, spinel, ruby, sapphire and zircon.
Ruby is a mineral, a gemstone.
A ruby is a form of the mineral corundum.
It is a mineral
its is a mineral
sedimentary
metamorphic
It is neither. Ruby is a mineral that is created in metamorphic environments.
The presence of intrusive magma in an area (known as contact metamorphism), or of tectonic plate interactions on a larger scale (known as regional metamorphism) puts the igneous and sedimentary rocks and minerals under heat or pressure which may cause changes in their chemistry and crystal structure. The result is the creation of metamorphic rocks. Gemstones associated with metamorphic rock include the beryls, jade, lapis lazuli, turquoise, spinel, ruby, sapphire and zircon.
Ruby is a mineral.
Ruby is a metamorphic rock, since it had been formed by heat and pressure.
Ruby is a mineral, a gemstone.