Mohs Scale

Mohs ScaleThe Mohs scale measures the hardness of select minerals. Hardness is the degree to which a gemstone resists scratches. It is determined by the strength of the chemical bonds between its atoms. The scale ranks minerals from one to ten, with ten being the hardest. Each mineral has the ability to scratch all of the minerals ranking below it. The Mohs Scale was originally devised by Friedrich Moh, a mineralogist, (more…)

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The Star Of India

Star Of IndiaNo, not a famous Bollywood actress. The Star of India is a 563.35 carat star sapphire, among the largest of its kind in the world.

While the size of the gemstone alone is quite impressive, its’ name is derived from the literal meaning – in certain lights, the shape of a star can be seen in its depths. Why are they not well known? It is for the fact that naturally occurring star gemstones are so (more…)

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