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One of the world's largest and most expensive truffles ever has been sniffed out by a man and his dog in Australia.

Stuart Dunbar of Yarra Valley Truffles posted the 1.5-kilogram (3.3 pounds) haul online, valued at A$3,000 ($2,291). It might look like a big pile of poop, but what a score!

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Herald Sunreported that Dunbar came across the big brown beauty when he and his dog were inspecting their orchard.

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Record breaking truffle! 1511 grams #truffle #tartufo #blacktruffle #yarravalley #melbourne #australia

A photo posted by Yarra Valley Truffles (@yarravalleytruffles) on Aug 18, 2016 at 11:51pm PDT

The black truffle, which is the type uncovered by Dunbar and his dog, is the second most expensive edible fungus behind white truffles.

The fate of this particular truffle? Dunbar says despite interest from buyers, he'll be preserving the smelly treasure with a portion of it going into some truffle vodka, because why not?

He even got down to the nitty gritty, writing on his blog, "Five grams does a bottle of truffle vodka, so it’s big enough to infuse 210 litres [44 gallons], although it will more likely be used for future promotional activities."

The prize truffle in its natural habitat.Credit: Stuart dunbar