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2. Gold cluster - Wikipedia

   en.wikipedia.org/wiki/Gold_cluster

   Gold clusters in cluster chemistry can be either discrete molecules or larger colloidal particles. Both types are described as nanoparticles , with diameters of less than one micrometer. A nanocluster is a collective group made up of a specific number of atoms or molecules held together by some interaction mechanism. [ 1 ]

3. YouTube Creator Awards - Wikipedia

   en.wikipedia.org/wiki/YouTube_Creator_Awards

   The Gold Creator Award was introduced at VidCon 2012, [5] alongside the Silver Creator Award at VidCon 2013 [6] and the Diamond Creator Award at VidCon 2015. [7] The Creator Awards are made by the New York firm Society Awards. [8] Prior to March 2021, YouTube featured three additional benefit levels.

4. Thiolate-protected gold cluster - Wikipedia

   en.wikipedia.org/.../Thiolate-protected_gold_cluster

   Top left: full structure; middle : only gold core and Au-S shell displayed, bottom right: only Au 13-core displayed. Thiolate-protected gold clusters are a type of ligand-protected metal cluster, synthesized from gold ions and thin layer compounds that play a special role in cluster physics because of their unique stability and electronic ...

5. Ring species - Wikipedia

   en.wikipedia.org/wiki/Ring_species

   In biology, a ring species is a connected series of neighbouring populations, each of which interbreeds with closely sited related populations, but for which there exist at least two "end populations" in the series, which are too distantly related to interbreed, though there is a potential gene flow between each "linked" population and the next ...

6. Granulation (jewellery) - Wikipedia

   en.wikipedia.org/wiki/Granulation_(jewellery)

   There are three basic techniques that may be used to attach granules to a metal surface: hard soldering, fusing and colloidal soldering. The metals used in granulation are usually gold and/or silver alloys of high purity – alloys below 18 kt. gold and sterling silver being unsuitable. With each technique, the process begins with the making of ...

7. Ring (jewellery) - Wikipedia

   en.wikipedia.org/wiki/Ring_(jewellery)

   Ruby ring. A ring is a round band, usually made of metal, worn as ornamental jewelry.The term "ring" by itself denotes jewellery worn on the finger; when worn as an ornament elsewhere, the body part is specified within the term, e.g., earrings, neck rings, arm rings, and toe rings.