What is the material of ice-permeable white jade?

Hetian Jade According to the weather in China, we can know that there is a kind of white ice jade in the Han Dynasty, or the jade species is called timely white and litchi white, also called Hetian jade, which is tremolite jade. It is characterized by good oiliness, high hand pressure and high density. The density is above 3.0, and some are as fine as 3.2. The structure view is floating floc or lotus root starch porridge. High-quality jade can't see the structure, and its transparency is higher than that of modern Hetian jade.