Sapphire crystal is the hardest oxide crystal, is the basic single crystal form of aluminum oxide (Al2O3). It has a series of excellent physical and chemical characteristics such as high strength, ...

Meller Optics, Inc. has introduced custom fabricated sapphire lenses and windows that provide front surface protection for AUVs used in demanding commercial and military environments.

The card earns bonus points for travel and dining-related spending, which can be redeemed for more value through Chase. It piles on the perks, too, but they come at a price. With a big sign-up ...

Between the big welcome bonuses, lucrative rewards and valuable statement credits, it can be easy to overlook the less flashy perks of the Chase Sapphire ... our readers with high-quality service ...

Ruby is an incredibly durable gemstone if there are no treatment-related durability concerns. - Courtesy Jan Goodman Co. Hardness and toughness Gem and mineral hardness is ... Today’s fracture-filled ...

The September birthstone is sapphire – a gem that’s been cherished for thousands of years. Although the term sapphire usually refers to the blue variety of corundum (ruby is the red variety), this ...

Since there’s a high annual fee, the Sapphire Reserve is best for travelers who expect to make heavy use of the card’s benefits and bonus categories. Our ratings take into account the card’s ...

Abstract: Sapphire fiber, renowned for their high melting point, mechanical robustness, and superior optical properties, are extensively utilized in high-temperature sensing applications. Sapphire ...

CNBC Select will update as changes are made public. With a high-yield savings account, you can get a solid interest rate and your money grows even faster thanks to compound interest — which lets ...