Moqui Marbles (pronounced Mo-Key) - very interesting minerals found mostly in the Navajo Sandstone Formation in the state of Utah. (They can no longer be collected there because it is now part of the Grand Staircase Escalante National Monument.)

These mostly smooth, elliptical or round balls of compacted sandstone are encased in a "shell" of iron compounds. They are also referred to as "Moqui Balls", "Thunderballs" or "Shaman Stones". They have been used for centuries by Shamans and other mystics - considered sacred among the Shamanic members of ancient tribes, they were used in rituals to contact extra-terrestrials, for visioning and for out-of-body journeys.

In the US, they get their name from the Moqui Indians who inhabited the lands of southern Utah where they are found.

They come in a variety of sizes ranging from that of common marbles to that of a baseball. Geologically, they are referred to as "hematite concretions". Geologists believe that they were formed underground 25 million (or more) years ago as minerals precipitated from flowing groundwater. After the marbles formed, the surrounding Navajo sandstone slowly eroded away over millions of years, so the hard, erosion-resistant concretions accumulated on the ground, often in great numbers.

They come in 2 shapes, and are either round like a ball (feminine) or more disc-like with a ridge (masculine), often used as pairs with a male and female.

Standard Size ranges from 1" to 1.5"; (2.5-3.5 cm) wide

Super large Size ranges from 2" to 2.25"; (5-5.5cm) wide (This size is out of stock)