Sapphire is a corundum gemstone that has meaning, properties, and uses. Corundum gemstones are the crystalline form of aluminum oxide with traces of iron, titanium, vanadium, and chromium. Sapphire is ...

Wait a minute, corundum is just a mineral, right? Yes, and being relatively common mineral found in all kinds of rocks (igneous, metamorphic and sedimentary) and very hard and nicely colored, it has ...

Sri Lankan authorities on Sunday put on show what they said was the world’s largest natural corundum blue sapphire, weighing 310 kilograms (683 pounds), which was found in a gem pit about three months ...

Neelam, or blue sapphire, is a mineral corundum linked to Saturn in Vedic astrology, believed to clear obstacles and alter destiny. While scientifically unproven, wearing this rare and expensive gem ...