12.65 CT YOOPERLITE (N)
Type:Yooperlite
Weight:12.65 Carat
Size:30X15X3 mm
Treatment:Natural
Origin: USA
Key Characteristics
Composition: A syenite igneous rock with fluorescent sodalite.
Appearance: Gray with possible teal/yellow hues in daylight; glows brightly under UV light.
Glow Colors: Red, orange, yellow, or pink, depending on the UV light type (long-wave vs. short-wave).
Origin: Formed from ancient volcanic activity, then eroded and deposited by Lake Superior.