Quote Originally Posted by Deophaun View Post
A) Not it's not (What's the DC for a platinum piece?)
B) Even if it was, there's nothing in the spell description for prestidigitation that prevents it from performing alchemy. It's prohibited from reproducing spells, not skills.
A) Yes it is, actually. Common aims for Alchemy were Chrysopoeia; the changing of less valuable metals into more valuable ones. (The traditional example being lead to gold.) Copper to platinum definitely qualifies here. The DC for a platinum piece is a 10 (Typical Item) or 15 (High-Quality Item) dependent on how the DM feels about currency. Seen here:

http://www.d20srd.org/srd/skills/craft.htm

B) Correct, and in this instance it would qualify as a transmutation...meaning it would be copying Polymorph Any Object.