Channel hopping again and came across Steve B selling a Green Colour Change Andesine. At the end of the graphics it said 'N' for natural. Steven then explained that he didn't buy it from source so couldn't say 100% that it was natural and unheated but the person he bought it from assured him that it was natural. Now that's fair enough of him saying that but obviously it had to be done for legal purposes. However, what price are people then expected to pay? The price for a 100% natural stone or the price for a stone which could have been heated but should be natural? A very strange situation methinks!