That probably depends on the type of ore.
2.2 tons
1000 kg or roughly 500 lbs.
1m3 of 19mm stone = 1.36 tonne
2.2
a cubic metere of what? it depends on the density
As a rule of thumb all quarried materials are approximately 2 tons to a qubic meter
average of 0.12tons of rebars per cubic meter of concrete.
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.
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 .
A cubic meter is a unit of volume; a metric ton is a measure of mass. Depending on what is in a particular cubic meter, the mass may vary between close to zero (in a vacuum), and billions of tons (in a neutron star). For example, a cubic meter of water has a mass of 1 ton, a cubic meter of lead, about 11 tons, a cubic meter of gold, about 19 tons. In every case, you have to multiply the volume with the density of whatever fills the cubic meter.A cubic meter is a unit of volume; a metric ton is a measure of mass. Depending on what is in a particular cubic meter, the mass may vary between close to zero (in a vacuum), and billions of tons (in a neutron star). For example, a cubic meter of water has a mass of 1 ton, a cubic meter of lead, about 11 tons, a cubic meter of gold, about 19 tons. In every case, you have to multiply the volume with the density of whatever fills the cubic meter.A cubic meter is a unit of volume; a metric ton is a measure of mass. Depending on what is in a particular cubic meter, the mass may vary between close to zero (in a vacuum), and billions of tons (in a neutron star). For example, a cubic meter of water has a mass of 1 ton, a cubic meter of lead, about 11 tons, a cubic meter of gold, about 19 tons. In every case, you have to multiply the volume with the density of whatever fills the cubic meter.A cubic meter is a unit of volume; a metric ton is a measure of mass. Depending on what is in a particular cubic meter, the mass may vary between close to zero (in a vacuum), and billions of tons (in a neutron star). For example, a cubic meter of water has a mass of 1 ton, a cubic meter of lead, about 11 tons, a cubic meter of gold, about 19 tons. In every case, you have to multiply the volume with the density of whatever fills the cubic meter.