The gem-tree form is a long-standing decorative tradition in lapidary craft

Labradorite is a calcium-sodium feldspar famous for labradorescence—an optical interference effect that fires blue

A form that shows both sides of the material—for the collector who wants the whole story

Three bracelets built for contrast—vivid blue

it carries the full crystal structure of quartz (silicon dioxide

Labradorite Half-Polished Form Size:5"x0.5"x2.75" The gem-tree form is aThe raw face holds the stone's outer character; turn it and the polished face eruptsblue, green, gold, shifting as the angle changes. Labradorite is a plagioclase feldspar, chemically a calcium sodium aluminum silicate, Mohs 6 to 6. 5. Its signature optical phenomenonlabradorescencecomes from light interference between thin, repeatedly twinned crystal layers within the stone. The effect is structural, not pigment based: no color is chemically present,