Yooperlite Stone Value Guide

First discovered in 2017 by Erik Rintamaki in Michigan's Upper Peninsula, Yooperlites are distinct syenite rocks containing fluorescent sodalite. These modern collectibles have captivated the rockhounding community because they appear as ordinary gray stones in daylight but emit a brilliant orange glow under UV light.

What Is Yooperlite Stone Worth?

The typical price range for Yooperlite Stone is $10 - $50 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The concentration and brightness of the sodalite inclusions when viewed under ultraviolet light.
• The physical size and weight of the specimen, with larger 'display-sized' rocks commanding higher prices.
• The aesthetic pattern of the fluorescence, such as 'snowflake' or 'solid' glow distributions.
• The quality of the stone's surface, including whether it is raw, tumbled, or polished into a sphere.

How to Identify Yooperlite Stone?

• Use a 365nm long-wave UV light to reveal the characteristic bright orange fluorescent sodalite inclusions.
• Look for a base material of gray syenite, which resembles common granite or river rock under natural lighting.
• Verify the origin as the Great Lakes region, specifically the shores of Lake Superior in Michigan's Upper Peninsula.
• Check for the 'speckled' or 'galaxy' pattern of the glow, which distinguishes genuine sodalite-rich syenite from other fluorescent minerals.

History of Yooperlite Stone

Yooperlites are syenite rocks rich in fluorescent sodalite, first discovered in 2017 by Erik Rintamaki in Michigan's Upper Peninsula. These stones have quickly gained popularity among rock collectors for their unique fluorescent properties, making them a sought-after find in the Great Lakes region.