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Zechstein Minerals

Explore the Exceptional Purity of Natural Magnesium Chloride from the Zechstein Source

  • Zechstein Inside® salt is renowned as the purest natural magnesium chloride, considered the most noble salt in the world. Originating from the ancient Zechstein Sea, which existed approximately 250 million years ago, this sea underwent multiple separations from the ocean, experiencing five distinct cycles over a span of roughly 10 million years.
  • Today, the Zechstein Sea's salt deposits are found in Northwestern Europe, about 1500 meters below the surface. Notably, exploitable magnesium chloride hexahydrate deposits are located in the North of the Netherlands. Remarkably, the Zechstein Sea has never been exposed to modern pollution, ensuring the unparalleled purity of its salt.

  • Zechstein Inside® magnesium chloride is extracted using advanced solution mining technology. The resulting magnesium chloride solution, often referred to as "magnesium oil," boasts a density of 32%, equivalent to more than 1.30 kg/l.

Zechstein Minerals has been established in 2006 to serve the cosmetic and medical markets with the naturally very pure magnesium chloride (Bischofite mineral) out of the Zechstein source. The Zechstein source of Nedmag is located nearby Veendam, Netherlands.

The History begins 250 Million Years Ago.

The Zechstein Sea was a prehistoric inland sea near the equator that existed over 250 million years ago. Over time, it underwent five cycles of evaporation and flooding, leaving behind rich mineral deposits—including magnesium chloride—in structured layers deep beneath the Earth's surface.

zechstein sea
These ancient salt beds remain buried beneath modern-day Northwestern Europe, safeguarded from environmental exposure and known for their geological purity. The Veendam region in the Netherlands contains one of the most concentrated and well-preserved deposits of these magnesium salts.
How is magnesium chloride made
Beneath the city of Veendam   a unique geological rift formed after the last major evaporation cycle of the Zechstein Sea. This natural depression caused magnesium chloride-rich brine pools to concentrate and solidify over millions of years.

The genesis of the unique Zechstein source starts shortly after the last great evaporation cycle On the salt flats (blue and red layer relatively small puddles with magnesium chloride (gray top) arose Figure a), the seabed at Veendam caved in, the aforementioned rift confluence causing magnesium chloride puddles from the outline miles away to merge ..(black arrows in the map) In the following millions of years, the first deposits above the salt appeared and salt flowed slowly in NW direction white arrows in blue) These growing deposits exerted pressure on the salt packet causing the first deformations Figure b) During the growth of more and more deposits there were also stable periods Figure c), but later, tectonic forces moved the salt upward Salt from the valleys and surroundings transformed into salt mountains This resulted in the high concentration of magnesium salts in the Veendam Salt Pillow Figure d) Nowadays on the NW side of the Veendam Salt Pillow we find a unique huge concentration of magnesium salt with pure natural magnesium chloride gathered in layers with a thickness up to tens of meters.

The Ancient Healing Power of ŐSIMAGNESIUM

Healing power of the Zechstein Sea

Magnesium is an essential mineral that plays a role in many biological functions. ŐSIMAGNESIUM sources its magnesium chloride from the ancient Zechstein Sea, preserving the purity and integrity of this rare natural element.

Our product line is formulated for external use, offering a premium magnesium experience through soothing bath flakes, luxurious body butters, and more. Each product reflects our commitment to natural, high-quality ingredients designed to support your daily wellness rituals.

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