I believe noble metal, and coin metal are both commercial classifications, that are used because these two metals are used to mint coins or produce bullion as money. That does not automatically mean they are excluded from being a heavy metal. The proper chemical identificion is transition metal, which is exclusive of the other two clasifications, light metal and heavy metal, and indeed lies between the other two in atomic number and weight.
Marshall "Robert L. Berger" wrote: > Mama; > > There are three noble metals, gold, silver, and platinum. > > The heavies start at an atomic weight of 200 with mercury, lead, etc. > > You might try the Encyclopedia Britannica (sp) which is on line. > > "Ole Bob" > > > > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > [email protected] -or- [email protected] > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: [email protected] > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > List maintainer: Mike Devour <[email protected]>
