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2. Chemical coloring of metals - Wikipedia

   en.wikipedia.org/wiki/Chemical_coloring_of_metals

   Various colors on stainless steel 18 Cr / 8 Ni 7.5 g of sodium dichromate , 1000 mL of sulfuric acid (1.24 g/cm 3 ), lead cathodes, object as an anode, 70-90 °C temp, 0,06 A/dm 2 , voltage 1.3 V – colors depend on the duration of the procedure (5-50 min.), brown, blue, reddish brown, yellow, green.

3. Marcasite jewellery - Wikipedia

   en.wikipedia.org/wiki/Marcasite_jewellery

   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.

4. Colored gold - Wikipedia

   en.wikipedia.org/wiki/Colored_gold

   Black gold is a type of gold used in jewelry. [13] [14] Black-colored gold can be produced by various methods: Patination by applying sulfur- and oxygen-containing compounds. Plasma-assisted chemical vapor deposition process involving amorphous carbon; Controlled oxidation of gold containing chromium or cobalt (e.g. 75% gold, 25% cobalt [3]).

5. 29+ personalized holiday gifts

   www.aol.com/news/29-personalized-holiday-gifts...

   Dannyshi Stainless Steel Initial Cufflinks $9.99 at Amazon If you’re looking for an affordable gift that still feels high end, these initial cufflinks are a great option.

6. These are the top 100+ gifts of 2024, according to Amazon - AOL

   www.aol.com/lifestyle/top-100-gifts-2024-amazon...

   Bev by Black + Decker, Cocktail Maker Machine for $200 ... Kate Spade New York Stainless Steel Bracelet for $248. ... Glamorous gold jewelry staples you can wear on repeat — all under $15. AOL.

7. Jewellery - Wikipedia

   en.wikipedia.org/wiki/Jewellery

   Jewellery (or jewelry in American English) consists of decorative items worn for personal adornment such as brooches, rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be attached to the body or the clothes.