Gem Testing Tutorial: how to use the hydrostatic balance instrument to determine specific gravity
Автор: what the gem
Загружено: 2025-09-23
Просмотров: 107
This is my favorite test. Along with the refractive index, this test also provides a "number" to cross-reference.
With a simple hydrostatic balance you can measure specific gravity and unlock another huge clue in gem identification. I’ll show you how to weigh a stone in air and in water, avoid bubbles, and apply the formula with confidence.
I’m Nick, trained in colored gem identification at SSEF in Switzerland. Subtitles are included and edited for clarity.
Website https://www.whatthegem.com
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