Best Feldspar

Spectrolite is a highly chatoyant, dark variety of labradorite feldspar displaying exceptional rainbow iridescence, discovered in Finland and named in 1935.

Sunstone is a plagioclase feldspar exhibiting a glittery optical effect called aventurescence due to light reflecting off embedded copper or hematite inclusions, notably found in Oregon.

Orthoclase is a potassium-rich tectosilicate feldspar mineral first named in 1823, notable for its moonstone varieties and pale yellow gemstones.

Bytownite is a calcium-rich plagioclase feldspar mineral named after Bytown, Canada, in 1835, notable for its range of yellow to golden-brown hues.

Sanidine is a high-temperature potassium feldspar mineral first described in 1808, notable for its glassy appearance and occurrence in volcanic rocks.

Andesine-labradorite is a plagioclase feldspar mineral valued for its red to green color play, with controversial natural sources claimed in Mongolia.

Amazonite is a green variety of microcline feldspar, famously utilized in ancient Egyptian art like the scarab beetle found in the tomb of Pharaoh Tutankhamun, and mined in Colorado.