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Hematite (/ ˈ h iː m ə ˌ t aɪ t, ˈ h ɛ m ə-/), also spelled as haematite, is a common iron oxide compound with the formula, Fe 2 O 3 and is widely found in rocks and soils. [6] Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of Fe 2 O 3. It has the same crystal structure as corundum ...
It can be prepared by reduction of hematite by carbon, [clarification needed] pyrolysis of iron(III) chloride solution, or thermal decomposition of iron(III) sulfate. [ 13 ] The epsilon (ε) phase is rhombic, and shows properties intermediate between alpha and gamma, and may have useful magnetic properties applicable for purposes such as high ...
Electrochemically oxidized iron (rust) An iron oxide is a chemical compound composed of iron and oxygen.Several iron oxides are recognized. Often they are non-stoichiometric. ...
Few foods are more appetizing to people than a juicy steak. Grilled to order and garnished with herbs like basil and chives, sauces such as au jus, peppercorn and A1, or vegetables like grilled ...
A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
Martian spherules (also known as hematite spherules, blueberries, & Martian blueberries) are small spherules (roughly spherical pebbles) that are rich in an iron oxide (grey hematite, α-Fe 2 O 3) and are found at Meridiani Planum (a large plain on Mars) in exceedingly large numbers.
The Washington Post argued that the benefits of gender-transition for minors have not been completely proven scientifically despite controversy. Washington Post admits science behind puberty ...
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