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2. Hematite - Wikipedia

   en.wikipedia.org/wiki/Hematite

   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 ...

3. Iron(III) oxide - Wikipedia

   en.wikipedia.org/wiki/Iron(III)_oxide

   Iron(III) oxide was the most common magnetic particle used in all types of magnetic storage and recording media, including magnetic disks (for data storage) and magnetic tape (used in audio and video recording as well as data storage). Its use in computer disks was superseded by cobalt alloy, enabling thinner magnetic films with higher storage ...

4. Magnetite - Wikipedia

   en.wikipedia.org/wiki/Magnetite

   Magnetite has been important in understanding the conditions under which rocks form. Magnetite reacts with oxygen to produce hematite, and the mineral pair forms a buffer that can control how oxidizing its environment is (the oxygen fugacity). This buffer is known as the hematite-magnetite or HM buffer.

5. Hematine - Wikipedia

   en.wikipedia.org/wiki/Hematine

   Hematine ring. Hematine (also magnetic hematite, hemalyke or hemalike) is an artificial magnetic material. [1] Hematine is widely used in jewelry. [citation needed]Although it is claimed by many that it is made from ground hematite or iron oxide mixed with a resin, analysis (of one object) has demonstrated it to be an entirely artificial compound, a barium-strontium ferrite.

6. The Best Power Crystals for Protection and Positive Energy ...

   www.aol.com/best-power-crystals-protection...

   Crystals and gemstones have long been used for their protective and cleansing properties. With so many options available, it can be overwhelming to know which crystals for protection are the most ...

7. Limonite - Wikipedia

   en.wikipedia.org/wiki/Limonite

   Limonite was one of the earliest materials used as a pigment by humans, and can be seen in Neolithic cave paintings and pictographs. [21] While the first iron ore was likely meteoric iron, and hematite was far easier to smelt, in Africa, where the first evidence of iron metallurgy occurs, [dubious – discuss] limonite is the most prevalent ...