The density of the quartz is the ratio of its mass to its volume. The specific gravity of the quartz is the ratio of the density of quartz to the density of water.
The term specific gravity refers to the ratio of the density of an object to the density of an equal mass of water.
To obtain the density of quartz, a quartz sample is weighed on a balance to obtain its mass. A known volume of water is added to a measuring cylinder. The quartz sample is then added and the volume of liquid displaced is measured. This is the volume of the quartz.
The density of the quartz is the ratio of its mass to its volume. The specific gravity of the quartz is the ratio of the density of quartz to the density of water.
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