Blue Sapphire Stone Hardness

Rubies emeralds diamonds oh my there are so many types.

Blue sapphire stone hardness.

Refractive index ri lie between 1 760 1 778. Top 10 best types of stones for rings 13th sep 2020. The sapphire is a beloved gemstone that has been cherished. Birefringence is 0 007 0 010.

If you have two sapphires and you know for sure one is real use it to scratch the second one. Natural blue sapphire gemstones are prized for use in high quality jewellery due to the very high hardness and range of stunning blue coloration that is available. This is evidence of the hardness of sapphire and a testament to its place at number 9 on the mohs hardness scale. Blue sapphire hardness is 9 on moh s scale of hardness.

Besides blue sapphire and ruby the corundum family also includes so called fancy sapphires they come in violet green yellow orange pink purple and intermediate hues. Some stones exhibit the phenomenon known as color change most often going from blue in daylight or fluorescent lighting to purple under incandescent light. It is liked by everyone because of its eye catching blue color hardness strength and luster. Sapphire is an extremely famous and beautiful blue gemstone.

Optic character of blue sapphire is anisotropic. Mohs hardness scale for gemstones 9th sep 2020. The mohs hardness scale starts with talc at 1 being. Learn why sapphires are an ideal gemstone for jewelry because of their hardness and durability in withstanding every day wear and tear with information on current trends.

What makes sapphires blue. Sapphire is a precious gemstone a variety of the mineral corundum consisting of aluminum oxide α al 2 o 3 with trace amounts of elements such as iron titanium chromium vanadium or magnesium it is typically blue but natural fancy sapphires also occur in yellow purple orange and green colors. See how sapphires are rated in hardness toughness and durability on the mohs scale the gemstone and mineral guide to hardness. If the real sapphire leaves a scratch on the second sapphire then the second one is not real or is at least of lower quality.

The mohs hardness scale and chart for select gems home learning center gemology reference charts materials the mohs hardness scale and chart for select gems igs may receive customer referral fees from the companies listed in this page.