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
Puyo Puyo! 15th Anniversary to get replacement can be found on Sega's website. In both of these versions existed yet another bug, this one effecting WiFi. When a player disconnected, both lost points. A new version was released to solve this problem. While playing multiplayer games, the fever meter will occasionally freeze on 7 points without letting you into fever mode. It will subsequently let you in after your next move, but this may be deadly depending on the circumstances. This bug can also be seen in version 2.00 of the PC version of Puyo Pop Fever. Puyo Puyo! 15th Anniversary Ms. Accord, the