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
Wedding dress of Princess Mary of Teck (although "The Times" reported there was none) and the veil of her mother's which she wore was also made of Honiton lace, fastened by diamond pins given as a gift from Queen Victoria. Matching the orange blossom elements to the dress, small wreaths were placed all the way around the bust and on the hair. Princess Mary completed the wedding outfit with a diamond tiara from Queen Victoria; diamond rivière necklace from the Prince and Princess of Wales and diamond earrings and anchor brooch, a wedding gift from Prince George. Out of all of the wedding toilette, the veil was