Fire Agate Gemstone Slaughter Mountain Arizona 50 Carats SLG091

This sizable freeform fire agate gemstone from Slaughter Mountain, Arizona, weighs 50.00 carats and measures approximately 34.5 x 24.2 x 8.0 mm at its largest dimensions. It showcases vibrant orange and red tones accented by flashes of green crackle. The stone is finely polished with a gently curved base, suitable for use in high quality jewelry or as a collector’s piece. Images were captured both indoors under full spectrum lighting and outdoors in natural sunlight to highlight its full visual appeal.

The vibrant colors in fire agates result from the Schiller effect, similar to that seen in mother-of-pearl and opals. This phenomenon arises from alternating layers of silica and iron oxide that diffract light, producing the characteristic interference colors known as fire. Optimal lighting is essential to reveal the full fire display, as under dimmer conditions these gemstones tend to appear darker with a brownish hue.