the interior polished

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

Peach moonstone is a variety of orthoclase feldspar—a potassium aluminum silicate in the monocline crystal system

A faceted drop of pure transparency that pulls light in from every direction and returns it

Black Tourmaline is a boron silicate mineral in the schorl variety

Labradorite Half-Polished Form Size:5"x0.5"x2.75" the interior polishedThe 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,