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  2. Pyrite - Wikipedia

    en.wikipedia.org/wiki/Pyrite

    The mineral pyrite (/ ˈ p aɪ r aɪ t / PY-ryte), [6] or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S 2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral .

  3. Marcasite - Wikipedia

    en.wikipedia.org/wiki/Marcasite

    Marcasite reacts more readily than pyrite under conditions of high humidity. The product of this disintegration is iron(II) sulfate and sulfuric acid. The hydrous iron sulfate forms a white powder consisting of the mineral melanterite, FeSO 4 ·7H 2 O. [13] This disintegration of marcasite in mineral collections is known as "pyrite decay".

  4. Control of fire by early humans - Wikipedia

    en.wikipedia.org/wiki/Control_of_fire_by_early...

    The control of fire by early humans was a critical technology enabling the evolution of humans. Fire provided a source of warmth and lighting, protection from predators (especially at night), a way to create more advanced hunting tools, and a method for cooking food.

  5. The Surprising Food That Can Help Reduce Bloating, According ...

    www.aol.com/surprising-food-help-reduce-bloating...

    Given that constipation is linked with bloating, Yoon touts the benefits of eating adequate fiber. It Acts as a Natural Diuretic Water retention can also contribute to bloating, notes Yoon.

  6. Lapis lazuli - Wikipedia

    en.wikipedia.org/wiki/Lapis_Lazuli

    A mixture of other minerals, often including pyrite Lapis lazuli ( UK : / ˌ l æ p ɪ s ˈ l æ z ( j ) ʊ l i , ˈ l æ ʒ ʊ -, - ˌ l i / ; US : / ˈ l æ z ( j ) ə l i , ˈ l æ ʒ ə -, - ˌ l i / ), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.

  7. Goethite - Wikipedia

    en.wikipedia.org/wiki/Goethite

    These include ε-FeOOH, which has an orthorhombic crystal structure, [10] a cubic pyrite-type polymorph with [11] or without losing hydrogen [12] and an ultradense hexagonal structure. [13] Goethite has the same crystal structure as diaspore, the analogous aluminium oxide-hydroxide mineral. Oxygen and hydroxide ions form a hexagonal close ...

  8. Women may get more health benefits from regular ... - AOL

    www.aol.com/finance/women-may-more-health...

    Women receive greater cardiovascular gains even if they work out less often than men, a new study says. Women may get more health benefits from regular exercise than men—even if they work out ...

  9. Maya medicine - Wikipedia

    en.wikipedia.org/wiki/Maya_medicine

    Maya medicine concerns health and medicine among the ancient Maya civilization.It was a complex blend of mind, body, religion, ritual and science.Important to all, medicine was practiced only by a select few, who generally inherited their positions and received extensive education.