Histology slide of a solar lentigo. Liver spots (also known as age spot, solar lentigo, Lentigo senilis, Old age spot, Senile freckle) are blemishes on the skin associated with aging and exposure to ultraviolet radiation from the sun.istology slide of a solar lentigo. Liver spots (also known as age spot, solar lentigo, Lentigo senilis, Old age spot, Senile freckle) are blemishes on the skin associated with aging and exposure to ultraviolet radiation from the sun.
Tanzanite is a stone of transmutation, shifting from lilac-blue to sapphire blue and into deep blue-violet. In faceted form it is stunning, celebrated as the Gemstone of the 20th Century and first promoted by the New York jewelers, Tiffany & Co. who created magnificent pieces to showcase this stone.
Tanzanite usually has to be large to reach a deep saturated blue or violet. Stones that. weigh less than a carat are commonly a lighter periwinkle lavender color. Tanzanite is the birthstone for December, and is also the gem for a 24th anniversary.