About Zinc About Zinc Definition Zinc is a shiny, bluish-white metallic element that is brittle at room temperature but is malleable when heated. It is a mineral…
Pyroxene Pyroxene Definition Pyroxene is any of a series of dark silicate minerals having the general chemical formula ABSi 2 O 6, where A is either…
Olivine Olivine Definition Olivine is a common mineral in the igneous rocks, such as basalt and gabbro that make up most of the Earth’s crust beneath…
Peridotite Peridotite Definition Peridotite is a coarse-grained igneous rock that consists mainly of olivine and pyroxene. It is believed to be one of the main constituent…
Kimberlite Kimberlite Definition Kimberlite is a type of peridotite consisting of a fine-grained matrix of calcite and olivine and containing phenocrysts of olivine, garnet, and sometimes…
Diamond Diamond Definition Diamond is a form of pure carbon that occurs naturally as a clear, cubic crystal and is the hardest of all known minerals.…
Graphite Graphite Definition Graphite is a naturally occurring, steel-gray to black, crystalline form of carbon. It is the most stable form of carbon under standard conditions.…
Helium Helium Definition Helium is a very lightweight, colorless, odorless element in the noble gas group. It is used as a component of artificial atmospheres and…
About Carbon About Carbon Definition Carbon is a naturally abundant, nonmetallic element that occurs in all organic compounds and can be found in all known forms of…
About Neutron About Neutron Definition Neutron is an electrically neutral subatomic particle in the baryon family, having a mass of 1.674 × 10-24 grams (1,838 times that…
About Proton About Proton Definition Proton is a stable subatomic particle in the baryon family having a mass of 1.672 × 10-24 grams (1,836 times that of…
About Hydrogen About Hydrogen Definition Hydrogen is the lightest and most abundant element in the universe, normally consisting of one proton and one electron. It is a…