The science and study of gemstones
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Category: <span>G</span>
An analog instrument used to measure levels of radioactivity utilizing a Geiger-Muller tube
Used to describe all non economic or waste rocks and minerals surrounding economic minerals within
A measurement of magnetic intensity
To coat an object with zinc as to prevent oxidation states from occurring, such as rust
A grayish-white metallic element used in semiconductors and alloys
The most common sulphide ore of lead
Thermal energy derived from within the Earth
The measurement of space between a sieve through which the majority of aggregate will pass
A physical evaluation of rocks by the measurement including magnetism, conductivity, specific gravity and radioactivity