Universal Specific Gravity Kit
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Combine any electronic scale with a
minimum capacity of 15 g (available
separately), a tare function, and a
readability of at least 0.001 g with this
kit to quickly test specific gravity of rocks
and minerals. Simply weigh the sample
in air on the integrated weighing platform
of the scale, then place the sample in the
underwater weighing pan included with the
kit and weigh it underwater.