Blue Sapphire Stone Hardness

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.

Blue sapphire stone hardness.

Gems of equal hardness can t scratch each other so if both are real sapphires then nothing will happen. The sapphire is a beloved gemstone that has been cherished. This is evidence of the hardness of sapphire and a testament to its place at number 9 on the mohs hardness scale. 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.

Some stones exhibit the phenomenon known as color change most often going from blue in daylight or fluorescent lighting to purple under incandescent light. Optic character of blue sapphire is anisotropic. If you have two sapphires and you know for sure one is real use it to scratch the second one. Because of the remarkable hardness of sapphires 9 on the mohs scale the third hardest mineral after diamond at 10 and moissanite at 9 5 sapphires are also used in some non ornamental applications such as infrared optical components high durability windows wristwatch crystals and movement bearings and very thin electronic wafers which are used as the insulating substrates of very special purpose solid state electronics especially integrated circuits and gan based leds.

Refractive index ri lie between 1 760 1 778. 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. Blue sapphire hardness is 9 on moh s scale of hardness. Parti sapphires show two or more colors.

Top 10 best types of stones for rings 13th sep 2020. Rubies emeralds diamonds oh my there are so many types. 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. The mohs hardness scale starts with talc at 1 being.

Mohs hardness scale for gemstones 9th sep 2020. 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. 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.

Birefringence is 0 007 0 010.