Sapphire jewelry. They also may be created synthetically in laboratories for industrial or decorative purposes in large crystal boules. 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). Sapphire is the birthstone for September and the gem of the 45th anniversary.
The Last Month of the Year very well; it just didn't sell." Sales for the album fell far below expected sales and Capitol withdrew the album from circulation shortly after its release. In his Allmusic review, critic David A. Milberg called "The Last Month of the Year" "An essential part of any Christmas album collection, these are true Christmas folk songs, from spirituals to Old English rounds." The Last Month of the Year The Last Month of the Year is an album of Christmas music by the Kingston Trio, released in 1960 (see 1960 in music). It became the first Kingston Trio album release to fall