Hydrometer

The Mineral Hydrometer from Mineralab is unique in that, unlike hydrometers used to measure the specific gravity of liquids, it is especially designed for solids, and in this particular case, minerals.

How does the hydrometer work? The hydrometer comes packaged in a tube/jar to be filled with water in which to float the hydrometer. The hydrometer incorporates two weighing chambers, one in air and one under water in which to place the mineral, and a stem graduated in centimeters off which readings are taken. Using the hydrometer is a simple 3 step process as shown in the illustrations.

First, take a reading of the included gram weights in air to serve as a baseline weight. Secondly, take a reading of the mineral in air. Finally, take a reading of the mineral underwater.

The 1st reading less the 2nd reading gives the mineral’s weight in air. The 1st reading less the 3rd reading gives the mineral’s weight in water. Then plug these two values into the SG equation to arrive at the specific gravity of the mineral.

Kit Includes:

	Hydrometer jar
	Weight Set 100 mg - 50g
	Instructions with illustrations
	Fill-in-the-blank worksheet
	Table of 300 minerals sorted by specific gravity (Or purchase our Mineral Search software and let your computer do the work of searching a gem and mineral database by specific gravity and other properties)

Features:

	Weight Range: 1 to 20 grams
	Accurate within 3%
	Compact - 12" Long x 2" in Diameter
	Readings made in 5 minutes
	Use tap or stream water
	Suitable for field use
	Durable - made of plastic
	1 year warranty, 30 day money-back guarantee

This product is Out of Stock.

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Qty: SKU: H1 Price: $79