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That question cannot be answered, because you ask for a length or distance unit in yards and than for weight in metric tonnes. Length and weight does not go together.

Sand is so very different as a naturally occurring granular material of finely divided rock and mineral particles. Sand particles range in from 0.0625, or 1⁄16 mm to 2 millimeters in diameter. An individual particle in this range size is termed a sand grain. The next smaller size class is silt, that are particles smaller than 0.0625 mm and down to 0.004 mm in diameter. The specific weight, also known as the unit weight, is the weight per unit volume of a material. The density of the material, mass per unit volume, is measured in kg/m3. You have to know many more parameters. Is the sand wet or dry. What is the weight of the water in it? Even if you meant "cubic" yards, the calculation of a weight cannot work. The question: "How many cubic yards of pure water make a metric tonne?" is easy to answer.

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17y ago

What else can I help you with?