Copper is NOT BAKED! If you need baked copper please check out our other listings. The copper has a protective resin around it thus enabling it to keep its shine and color. I know it is micron size cause when I shake the batch copper dust particles float up into the air to form a plume. Item: .999+ Fine pure copper micron size dust. 50 grams total. Returns: I understand that some times we buy things that we don't want or need. I will accept returns up to 30 days from arrival and refund 100% of the sale price of the item. Shipping charges are not refundable. Please be sure to leave me positive 5 STAR feedback if you are happy with your item. |