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  2. Dec 23, 2020 · Used for millennia, marcasite is a gemstone that features in many distinctive jewellery pieces. The term ‘marcasite’ generally refers to jewellery set with the semi-precious stone, but also to jewellery made from silver with tiny pieces of its chemical twin, pyrite.

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    Despite marcasite's relatively low hardness and distinct cleavage, many cultures have worked this material into objects of beauty. The Ancient Greeks made jewelry from marcasite. The Incas of South America polished large slabs of it as decorative objects. Gem cutters in the Victorian Era faceted this material into stones with flat backs. This popul...

    Marcasites leave a greenish black streak. However, never conduct a destructive streak test on a finished stone. You may find steel imitations of this material. However, steel may be magnetic while marcasite is not.

    This mineral is abundant and found throughout the world. Notable sources of gem material include: 1. United States: Illinois; Kansas; Missouri; Oklahoma; Wisconsin. 2. United Kingdom, England: in chalk deposits along the coast and at Folkestone. 3. Austria; Bolivia; Czech Republic; France; Germany; Myanmar; Slovakia.

    Since marcasite can react to moisture and release sulfuric acid, store specimens in low humidity, below 60%, and separate from other pieces. Avoid inhaling dust when cutting this material and wash your hands after handling. Marcasites are quite brittle. A sharp blow can easily crack a stone and loosen it in its setting. Because of its fragility and...

  3. en.wikipedia.org › wiki › MarcasiteMarcasite - Wikipedia

    Marcasite can be formed as both a primary or a secondary mineral. It typically forms under low-temperature, highly acidic conditions. It occurs in sedimentary rocks ( shales , limestones and low grade coals ) as well as in low temperature hydrothermal veins .

  4. Mar 11, 2023 · Marcasite is a brassy yellow gemstone similar to pyrite. It’s prevalent in vintage jewelry, but requires some caution to maintain. Learn marcasite’s history, properties, prices, and benefits!

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  5. Marcasite is a type of gemstone that has been used in jewelry for centuries. Marcasite jewelry refers to the gemstone but it also means a type of jewelry – setting tiny pieces of pyrite in designs into silver. Marcasite jewelry has a distinct look and is popular in vintage jewelry pieces.

    • What is marcasite used for?1
    • What is marcasite used for?2
    • What is marcasite used for?3
    • What is marcasite used for?4
    • What is marcasite used for?5
  6. Jul 16, 2021 · The tiny pieces of marcasite are used in silver jewelry to create iconic jewelry. Marcasite, a granular stone, has a brittle nature and relatively low hardness of 6 to 6.5 on the Mohs scale. It makes them unsuitable in the jewelry industry.

  7. Jul 4, 2024 · Marcasite is a visually distinctive, semi-precious metallic stone and is used in jewellery as many tiny, faceted pieces, offering a subtle but beautiful sparkle. It has been used for hundreds of years but, in recent times, pyrite – also called Fool’s Gold – has been used in it’s place as it is chemically identical to marcasite.

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