Crystal structure "white tin" respectively. Two more allotropes, γ and σ, exist at temperatures above 161 °C and pressures above several GPa. White tin is metallic, and is the stable crystalline form at or above room temperature. Below 13.2 °C, tin exists in the gray form, which has a diamond cubic crystal structure, similar to diamond, silicon or germanium. Gray tin has no metallic properties at all, is a dull gray powdery material, and has few uses, other than a few specialized semiconductor applications. Although the α–β transformation temperature of tin is nominally 13.2 °C, impurities (e.g. Al, Zn, etc.) lower the
15th Anniversary Best Live History DVD Book not a standard DVD, it did not chart on Oricon and was given the ISBN of 978-4800239969. Instead, the DVD book ranked #1 on the Rakuten Books Weekly Ranking in the pop/rock division. The DVD book was available in bookstores, convenience stores and EC sites nationwide. While being released a year prior to her "15th Anniversary LIVE The Artist" DVD, both had their cover art taken at the same times, with Koda Kumi on the same set in the same ensemble, with only slightly different poses. The art direction was very similar to that of her twelfth studio album, "Walk