Journal
What we know about the metal, written down.
How a metal rate becomes a finished price
A finished piece costs the metal in it, plus the labour to make it, plus GST. Here is how a per-gram rate turns into the price of an object.
Why silver tarnishes, and what to do about it
Tarnish is silver reacting with sulphur compounds in the air to form a thin dark film of silver sulphide. It is a surface change, not corrosion, and it comes off.
What 999 silver actually means
999 silver is 99.9% pure silver by weight. The remaining 0.1% is trace elements left over from refining, not a deliberate alloy.