If you have experienced a sunset walk along the shores of Lake Superior, you probably can not notice the hidden treasures until you switch on a UV flashlight. Those ordinary grey stones may suddenly become alive in stunning yellow, orange, or red hues. These glowing stones are known as yooperlites, and discovering one is almost as secret as only nature knows it.
This article is intended for anyone interested in yooperlites from what they are, why they glow, to how you can locate them yourself on the lakeshore. Yooperlite hunting is an adventure even if you are starting out or simply enjoy nighttime beach walks.

Quand Yooperlite a-t-elle été fondée ?
Yooperlite was discovered in 2017 by Erik Rintamaki, who found these glowing stones along the shores of Lake Superior and eventually named them “Yooperlites”. It not only made the world curious about his discovery but also brought a fresh wave of rock-hunting enthusiasm. A series of activities including guided gem, hunting tours, local events, and a community of collectors around this unique find appeared shortly. Nowadays, more adventurers are attracted to the northern lakeshore of Michigan to get the excitement of finding these luminous rocks themselves.


Comment trouver des Yooperlites ?
La recherche de yooperlites est une aventure en plein air amusante et enrichissante, et choisir le bon moment et bien se préparer peut rendre l'expérience encore plus agréable. Si vous voulez repérer plus facilement ces pierres luminescentes, le meilleur moment pour les chercher est la nuit. L'obscurité fait ressortir leur fluorescence sous la lumière UV. Veillez à privilégier la sécurité. Une lampe torche UV de bonne qualité et des lunettes de protection UV jaunes qui réduisent la fatigue oculaire sont indispensables. Et comme la plupart de ces plages se trouvent dans des zones reculées où le réseau mobile est faible, il est plus sûr et plus agréable d'explorer en groupe plutôt que seul.

