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<p>[QUOTE=&quot;BadThad, post: 2458841, member: 17261&quot;]Mineral oil is a complex mixture of various chemicals with a lot of variance. Mineral oil is very stable in itself, depending on the degree of satuation, i.e. the amount of materials in it without reactive double bonds. It also contains sulfur, chlorine, phosphorus and other dissolved elements which are harmful to metals. It can also contain some serious nasties like benzene. It should NEVER be used on coins for these reasons.</p><p><br /></p><p>Olive oil is completely different from mineral oil. It has nothing in common with it other than the name &quot;oil&quot;. It contains various organic acids, that&#039;s why it can have an affect on verdigris. At the same time, acids will EAT metal and cause corrosion, that&#039;s likely what those coins are &quot;flat and dull&quot; after an extended exposure.</p><p><br /></p><p>Save the EVO for your salad, DO NOT use it on coins![/QUOTE]</p><p><br /></p>

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