Like their gemstone cousin the sapphire, rubies are just a variety of corundum, or aluminum oxide ... was rewarded with a large, deep pink ruby. This looks like a fun, quick little project ...

Diamonds, made of carbon atoms, are the hardest natural ... showcase a ruby from Tanzania in its unpolished beauty. Rubies, valued as precious gems, are the mineral corundum in its red form.

This is an example of a raw, natural amblygonite ... are made of corundum. Rubies are colored red by chromium and are rarer ...

A chemical process allows a full-size gemstone to be grown from a tiny fragment A university lecturer has successfully grown a full-size ruby as it ... growth features natural facets, and this ...

The intensity of the color can also be influenced by exposure to natural radiation over millions ... Rubies are a red variety ...

Cancer birthstone radiates emotional balance and intuition. Discover its healing properties, zodiac significance, and how it ...

This multi-purpose, all-natural wonder from Vermont Soap, however, can clean almost anything, including the car, laundry and even our skin. The liquid soap is made from organic olive, coconut and ...

As a child, the future president acquired a marine animal's skull, which became the first specimen in his natural history collection Peter Zablocki In a new book, a curator at England's Natural ...

We asked skin-care experts to share their favorite natural sunscreens—here's what they had to say. Our editors and experts handpick every product we feature. We may earn a commission from your ...

However, the best natural cat litter is another option. While clay litter tends to create dust that can irritate both cats and humans, natural litters are nearly dust-free and also more eco ...