tarnish

Hi All, I have just been sent a 1998 10oz 2oz 1oz Silver Kookaburra Proof Set. Turns out the 2oz is very noticeably tarnished on the rim, the 1oz has 'spider web' tarnish on both faces and the 10oz has a small amount of tarnish on the rim. Am I right in thinking this kills any premium on the...

Hi all -- Take a look at Argentium Silver to see what I mean. It comes in 935 and 960 fineness. 935 exceeds the sterling standard (925), and 960 exceeds the classic Britannia standard (958). Argentium is much more tarnish resistant than 999 or 9999 fine silver. There are other alloys like...

An excellent display and explanation of the chemistry behind tarnishing.The bi-carb and aluminium cleaning method is explained from a chemistry point of view. Coin collectors may find this hard to watch as beautiful patinas disappear in seconds without any surface abrasion.