Calcium without Calcium Paradox
On the Kuromatsunai Fault in Yakumo-cho, Hokkaido, a fossilized layer of Kamionishi shellfish from about 20 million years ago has been exposed, nd it has progressed to weathering. Because it has been weathered, it has low activity and has a different crystallization style (normal limestone is alcite, this weathering fossil shell is aragonite), making it a valuable calcium source that does not cause the so-called calcium paradox. This raw aterial is made by mining the weathered fossils of Kamionishi shellfish, carefully sorting them, heat sterilizing them at 280℃, and turning them into a fine powder.