Turquoise is copper aluminum phosphate, which is what gives it that specific blue-green color. The shade depends on the copper and iron content—more copper means bluer, more iron means greener. Matrix (those dark lines) is normal.
Product Specifications:
Real turquoise is porous, which means it can change color over time with wear—that's part of its character. The bezel setting protects the edges since turquoise is softer than most gemstones (5-6 on Mohs scale). This is jewelry you put on and forget about. Sterling silver gets better with wear because your body oils naturally polish it.
Delicate enough for work, bright enough to notice. The adjustable chain means you can layer it or wear it solo. Works for everything from yoga to dinner out. It's built to be part of your routine.
Turquoise has been used in jewelry for over 7,000 years. December babies get this or tanzanite, depending on preference. Most turquoise is stabilized to prevent color change, which is standard practice.
Sterling silver oxidizes naturally—that's normal. Wear it regularly and it stays shiny. Avoid lotions and perfumes directly on turquoise—apply those first, then put on your necklace.
Each stone is unique. Natural matrix and color variation are expected.