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A mineral with a specific gravity of 3.5 would be expected to weigh 3.5 times as much as an equal volume of?
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∙ 15y ago
water
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∙ 15y ago
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A mineral has a specific gravity of 7.0 What does this mean?
Specific gravity is a comparison of the density of one material to the density of water (at 4 degrees C). When a mineral has a specific gravity (SG) of 7.0 it means that the mineral is 7.0 times as heavy as the same volume of water.
How do you get the specific gravity of a mineral?
Fill a beaker with water, and weigh it. Weigh a sample of the mineral. That's the mass of the mineral. Put the sample in the beaker and weigh that. The weight of the water-filled beaker plus the weight of the mineral sample will be greater than the weight of the beaker with mineral sample and water. The difference is the weight of the displaced water, in grams. The volume of the mineral sample, in cubic centimeters is equal to the weight of the displaced water, in grams. Calculate the specific gravity of the mineral by dividing the weight of the mineral sample by the volume of the mineral sample. Example: your beaker weighs 40 grams. Filled with water, it's 1040 grams. The sample of mineral weighs 160 grams. The beaker with the sample of mineral and water weighs 1179.7 grams. The mineral, and the beaker with water would have a combined weight of 1200 grams, but the beaker with mineral and water weighs 20.3 grams less than that, so the mineral sample is displacing 20.3 cubic centimeters of water. Given a mass of 160 grams and a volume of 2.03 CC, the specific gravity would be found by dividing 160 by 20.3. It's 7.85. (Which happens to be the specific gravity of some iron.)
What is the definition for the hardness of a mineral?
Hardness - measure of how easily a mineral is scratched.
What is the specific gravity of sand?
Light-colored sand is mostly quartz. The specific gravity of quartz is 2.65, but sand is porous. A good approximation is 1.6 for compacted sand where the interstitial volume is filled with air, rising to 1.9 when the sand is saturated with water.
How do you measure specific gravity of sand?
Determine the density of the sand. Determine the mass of the sand, and it's volume. Divide the mass by the volume and that gives you density. Then divide the sand's density by the density of water. That will give you the specific gravity of the sand. Because you divide densities, the units cancel out, and specific gravity does not have any units. For example, you determine the density of the sand to be 10g/cm3, and the density of pure water is known to be 1g/cm3. Divide 10g/cm3 by 1g/cm3. The g/cm3 cancel, and you are left with just the number 10. So in this example the specific gravity of sand is 10.
What does it mean when a mineral has a specific gravity of 4.0?
A specific gravity of 4.0 for a mineral means that a given volume of the mineral has 4.0 times the mass of the same volume of water.
A mineral has a specific gravity of 7.0 What does this mean?
Specific gravity is a comparison of the density of one material to the density of water (at 4 degrees C). When a mineral has a specific gravity (SG) of 7.0 it means that the mineral is 7.0 times as heavy as the same volume of water.
What compares weight of mineral with weight of an equal volume of water?
Specific gravity
This is expressed as the weight of a mineral compared with the weight of an equal volume of water?
This is the specific gravity of the mineral. It's a comparison of how much mass a given volume of it has compared to the mass of an equal volume of water.
How to Find Volume when given mass and specific gravity of a mineral mass 2851.2g specific gravity 4.2 what is volume?
weight = mass * gravitational constant. Newtons (weight) = kg * m / sec^2 for instance.
A 1066 gram mineral displaces 300 ml of water. What is the specific gravity of the mineral?
We find that 3.53 is the spee gee (specific gravity) of our mineral. Specific gravity is a measure of the density of a substance compared to the density of water. The density of water is 1 g/ml and we just need to do some simple math. Since water is 1g/ml, we just need to find out the density of our sample in g/ml and drop the units. Note that specific gravity has no units associated with it. It is a number. Our mineral sample weighs 1066 grams, and its volume is 300 ml. 1066 / 300 = 3.53333....
How do you get the specific gravity of a mineral?
Fill a beaker with water, and weigh it. Weigh a sample of the mineral. That's the mass of the mineral. Put the sample in the beaker and weigh that. The weight of the water-filled beaker plus the weight of the mineral sample will be greater than the weight of the beaker with mineral sample and water. The difference is the weight of the displaced water, in grams. The volume of the mineral sample, in cubic centimeters is equal to the weight of the displaced water, in grams. Calculate the specific gravity of the mineral by dividing the weight of the mineral sample by the volume of the mineral sample. Example: your beaker weighs 40 grams. Filled with water, it's 1040 grams. The sample of mineral weighs 160 grams. The beaker with the sample of mineral and water weighs 1179.7 grams. The mineral, and the beaker with water would have a combined weight of 1200 grams, but the beaker with mineral and water weighs 20.3 grams less than that, so the mineral sample is displacing 20.3 cubic centimeters of water. Given a mass of 160 grams and a volume of 2.03 CC, the specific gravity would be found by dividing 160 by 20.3. It's 7.85. (Which happens to be the specific gravity of some iron.)
The density of a pure mineral?
The density of a pure mineral is measured using various apparatus and techniques which are covered in most mineralogy textbooks.
If a mineral's specific gravity is less than 1 will it float?
Yes. That's what specific gravity is all about - the comparison of the density of a material to that of an equal volume of water. If a material or substance has a specific gravity equal to that of water, its specific gravity (sometimes called "spee gee" by the chemists) is 1. If it is more dense, say twice as dense as water, its spee gee will be 2. If the spee gee of a substance, in this case a mineral, is less than 1, it is less dense than water and will float. There may be a few exceptions for porous materials, but this is the rule.
What's the relationship between Specific retention and specific yield?
Both Specific retention and specific yield relate to the ratio of the volume of water (in a permeable unit of rock and/or sediment) to the total volume of the rock and/or sediment, as it relates to gravity. Specific retention is the ratio of the volume of water that is RETAINED against the pull of gravity, ...where-as specific yield is the ratio of the volume of water that is EXPELLED (yielded) against the pull of gravity. Again, ...both as a ratio to the total volume of the rock and/or sediment.
How to Find Volume when given mass and specific gravity?
Volume = mass / specific gravity. Units are cubic centimeters and grams or cubic meters and tonnes. s.g. has no units : it is a dimensionless quantity.
What is the difference between specific gravity and density?
Relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water.
