Hematite

Science / Geology / Hematite: An iron oxide mineral that is commonly used as an ore of iron. Picture of Hematite.

Burnisher

Life Style / Painting / Burnisher: An instrument to polish either a metal surface or other substance that will take it. It is either shaped from hardened steel or the semi-precious stone, agate. In the 15th century Cennini in il Libra MORE

Iron (Fe)

Science / Periodic Table of Elements / Iron (Fe): Atomic number: 26, Atomic mass: 55.85 g.mol -1, Electronegativity: 1.8, Density: 7.8 g.cm-3 at 20°C, Melting point: 1536 °C, Boiling point: 2861 °C, Vanderwaalsradius: 0.126 nm, Ionic radius: 0.076 MORE

Iron Ore

Science / Geology / Iron Ore: A chemical sedimentary rock that forms when iron and oxygen (and sometimes other substances) combine in solution and deposit as a sediment. Hematite is the most common sedimentary iron ore mineral. Pi MORE

Banded Iron Ore

Science / Geology / Banded Iron Ore: A rock that consists of alternating layers of chert and iron oxide mineral (usually hematite) with the iron oxide in high enough concentration to be of economic value. MORE

Links
Home
Glossary
Thesaurus