Hokutolite, produced in Beitou Creek in northern Taiwan Province Province, is the only rare ore named after the place name of Taiwan Province Province among more than 4,000 minerals in the world. Only Beitouxi in Taiwan Province Province, Yuchuan in Japan and Tibet in China have been found in the world. Beitou stone is an orthorhombic sulfate mineral, which contains lead barite as a rare and special energy source "Radium". This mineral is a mixture of lead sulfate (PbSO4) and barium sulfate (BaSo4) produced by "Green Sulfur Spring", and the ratio is 4: 1. The reason for the formation of Beitou Stone is that the hot spring water in geothermal valley contains mineral elements such as lead sulfate, barium and radium. When the hot spring water gradually cools down, it precipitates and crystallizes in the cracks of "gravel" rocks in the river bed for a long time, forming ore. Beitou Stone contains special rare energy "Radium", which has the effects of recuperation, beauty and rehabilitation. Because Beitou Stone grows near the Millennium Hot Springs and absorbs the essence of heaven and earth all the year round, Beitou Stone can emit natural negative ions. Uses include hot spring bathing, health care, sauna, SPA, rock bath, etc.