Kyanite is another mineral that, while not technically a gemstone, is used as though it were. This rare blue crystal has unique metamorphic characteristics. It expands significantly and irrevocably when heated. The name kyanite comes from the Greek word kyanos, which means blue. That may seem appropriate for the unusual blue silicate form of this ...
What is aquamarine? Aquamarine is a transparent, pale blue-green form of the stone called beryl, and is closely related to emerald. The color is produced by the presence of ferrous iron. Its name is from the Latin for water (aqua) and sea (marina), meaning water of the sea, which is obviously due to its color. ...
Morganite has existed for millions of years. However, for most of that time it was viewed merely as nothing more than a pink form of beryl. It wasn’t until 1911, that the gem was considered for its own name. Tiffany’s chief gemologist, George Kunz, for whom the gem kunzite is named, recommended that the unusual ...