Amazonite (likely mixed with other feldspars/minerals)

Hardness: 6 to 6.5 on Mohs scale. Color: Green to blue-green (amazonite), but beads in image show a range including white, yellow, pink, and other light pastel shades suggesting a mix of minerals or variations within amazonite. Luster: Vitreous to pearly. Crystal structure: Triclinic. Cleavage: Perfect in two directions. Specific Gravity: 2.56-2.58.

Amazonite typically forms in pegmatites, granites, and other igneous rocks, often associated with smoky quartz, albite, and mica. The other colored beads could come from various geological processes, including hydrothermal alteration, precipitation, or other magmatic events depending on the specific mineral. Geological age varies greatly with the specific formation.

Primarily used as a gemstone and ornamental stone for jewelry (like the bracelet pictured), carvings, and small decorative items. Due to its attractive colors, it is popular in crystal healing and metaphysical practices. Other feldspars are used in ceramics and glassmaking.

Amazonite gets its name from the Amazon River, though no deposits have been found there. It was named based on a misunderstanding regarding a similar green mineral found near the river. The color is believed to be due to small amounts of lead within its composition. Beads showing various pastel colors are often marketed as 'gemstone mix' or 'rainbow fluorite' (though the texture here doesn't suggest fluorite). This specific bracelet appears to be a mix of different feldspars or other silicate minerals, with amazonite being a prominent component of the blue-green beads.

Identify amazonite by its distinctive blue-green color, often with white streaks or mottled patterns, and its triclinic crystal habit (though often found in massive form). The beads in the image display a variety of pastel colors (blue-green, white, pale yellow, pinkish), suggesting a mix of Amazonite with other minerals like Moonstone (orthoclase/albite), Rose Quartz, or other light-colored feldspars. In the field, look for it in granitic pegmatites. Common localities include Russia (Ilmen Mountains), Colorado (Pikes Peak), Brazil, Madagascar, and parts of the United States.