Eudialyte is a naturally radioactive stone because it contains minor traces of Uranium, a radioactive element, in its mineral composition. But is it safe to handle?

The short answer is – Yes. It’s safe to handle Eudialyte.

To understand why we need to understand the chemical composition and how many mrems (doses of radiation) is considered a safe exposure.

Understanding Mineral Chemical Composition

Eudialyte’s chemical composition is Na15Ca6(Fe,Mn)3Zr3SiO(O,OH,H2O)3 (Si3O9)2(Si9O27)2(OH,Cl)2 This means, that it is mainly composed of the elements Sodium, Calcium, Zirconium, and Silicon Monoxide. Each minerals’ chemical composition is based on the major elements present within it. But there are often minor elements inside a mineral too.

For comparison, think about the ingredient list on the package of a store-bought granola bar. The major ingredients are listed by name – ‘oats’, ‘sugar’, ‘flour’, ‘palm oil’, ‘honey’, etc. The last ingredient might be something like ‘natural flavors’, which are various spices and essential oils. While present, they are included in such tiny amounts that they aren’t listed individually. The same idea is true for mineral compositions. The major ingredients are listed by name, while the minor ones are basically ignored.

One of Eudialyte’s minor elements is the naturally-radioactive element Uranium. This may sound scary until you realize that bananas are also naturally mildly-radioactive due to their high po potassium content!

Handling Radioactive Crystals radioactive crystals

What’s the Real Risk of Handling Eudialyte?

The Eudialytes sold at Moonrise Crystals are approximately 1 inch in length and weigh around 15 grams.

If you held one of these Eudialytes in your hand every day, all day and night, for a year you would absorb 261 mrems of radioactive energy.

For perspective, radiologists who work in a hospital can be safely exposed to 50,000 mrems on their hands every year. A lethal dose of radioactivity is 500,000 mrems.