That probably depends on the type of ore.
2.2 tons
1000 kg or roughly 500 lbs.
1m3 of 19mm stone = 1.36 tonne
To determine the weight of a cubic meter of 13mm building stone, we need to know the density of the stone. Assuming a typical density of 2.6 grams per cubic centimeter for building stone, we can convert this to kilograms per cubic meter by multiplying by 1000. Therefore, a cubic meter of 13mm building stone would weigh approximately 2600 kilograms, or 2.6 metric tons.
2.2
As a rule of thumb all quarried materials are approximately 2 tons to a qubic meter
The weight of stone aggregate varies based on its density, but a general estimate is that a cubic meter of 20mm, 40mm, and 10mm stone aggregate typically weighs around 1.5 to 1.7 tons. For example, 10mm aggregates are closer to 1.5 tons per cubic meter, while 20mm and 40mm aggregates can weigh slightly more, up to 1.7 tons. The specific weight can vary based on the type of stone and moisture content.
2.2 tons.
1.77 US tons per cubic meter.
It will depend on (a) the bulk density of the dry sand and (b) the moisture content of the wet sand.
The weight of sand can vary based on factors like moisture content and the type of sand. On average, 1 cubic meter of sand weighs around 1.6 to 1.9 tons. Therefore, 4 cubic meters of sand would weigh approximately 6.4 to 7.6 tons.
Cubic meter is a unit of volume and ton is unit of weight. You are asking how many tons does 1270 cubic meters of something weigh, but you do not say what that something is. For example 1270 cubic meters of air would weigh much less than the same amount of iron .I will tell you that 1270 metes of waters weighs 1341.99402 tons .