北投石 meaning in English

anglesobaryte
hokutolite

There are 11 display areas inside the museum , covering subjects such as the formation of various types of hot spring , the history of peitou s development as a spa , local industries such as peitou porcelain and lincao rush weaving , the volcanic geology of the area , hot springs around the world , and most particularly , the mineral known as hokutolite or " peitou stone .
馆内分十一个展示区，有关温泉的种类来源，北投温泉相关的发展历史及图像，北投烧陶瓷和蔺草等特殊产业，和北投的火山地形世界温泉介绍等，其中最特殊的是北投石。
Hokutolite is a natural substance produced in the peitou creek about 90 meters downstream from the hot spring . as water from the spring flows into the stream it cools , and after a certain distance , when the temperature drops to around 80 , the mineral - saturated water forms a crystalline deposit on the gravel bed of the stream
北投石产于北投溪源头下九十公尺处，当泉水与溪水混合流过一定距离后，在八十度左右的环境下，呈饱和状态的矿物质就沈淀在河床砾石表面，形成结晶。