18 most expensive materials in the world

There are a lot expensive materials in the world. They have different origin and some of them are created by people. Here you can read about 18 the most expensive materials, prepared by cameralabs.org.

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18. White Truffle. The cost of the seasonal mushroom varies from $ 5 per gram to $ 2,000 per pound. It is so expensive because it grows underground and is a delicacy in cooking.

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