Search results
Results from the WOW.Com Content Network
Marcasite jewellery is jewellery made using cut and polished pieces of pyrite (fool's gold) as gemstone, and not, as the name suggests, from marcasite. [1] Both pyrite and marcasite are chemically iron sulfide, but differ in their crystal structures, giving them different physical properties. Pyrite is more stable and less brittle than 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".
AOL latest headlines, entertainment, sports, articles for business, health and world news.
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
Conway report in 2011 "Most marcasite jewelry today is actually faceted hematite." That may be true of high end merchandise that I never see. But there is also a thriving commercial trade in dark gray 'synthetic marcasite' for cheap jewelry, at prices like a few cents per small round stone, in lots of 1,000, which you can easily find on line.
English: Crystals of marcasite up to 6 mm in size across the matrix (6.0 × 5.0 × 3.0 cm) of crystallized dolomite. Found from Reocín mine, Cantabria, Spain.
Three-time Olympic medalist Tori Bowie, a Mississippi native who sprinted to gold at the 2016 Rio de Janeiro Games, was found dead in a Florida home, officials said Wednesday.
Live at Montreux 1991/1992 is a Tori Amos live album and DVD or Blu-ray set, released on September 22, 2008, in the United Kingdom and on September 30, 2008, in the United States, featuring two separate performances at the Montreux Jazz Festival early in her career.