Is there any glass in the palace of the Tang Dynasty?

There was no colorless glass in the Tang Dynasty, only colored glass at most.

Glass was originally solidified by acidic rocks ejected from volcanoes. Around 3700 BC, the ancient Egyptians had made glass ornaments and simple glassware, when there was only colored glass. About 1000 BC, China made colorless glass. /kloc-in the 0/2 century, commercial glass appeared and began to become an industrial material. /kloc-in the 0/8th century, in order to meet the needs of developing telescopes, optical glass was manufactured. 1874, Belgium made flat glass for the first time.

Coloured glaze, also known as "coloured glaze", is one of the traditional handicrafts of Han nationality in China. It is a crystal work made of artificial crystals (including 24% lead dioxide) with various colors (colors are made of various rare metals) and dewaxed by ancient bronze dewaxing casting method at high temperature. Its colors are colorful and beautiful; Its quality is crystal clear and dazzling.

The history of making colored glasses in ancient China can be traced back to the Western Zhou Dynasty. At first, the materials for making colored glasses were obtained from the by-products produced by bronze casting, and then refined and processed to make colored glasses. Glass has many colors, and the ancients also called it "five-color stone". By the Han Dynasty, the production level of coloured glaze was quite mature. However, the smelting technology is in the hands of the royal nobility and has been kept secret. Because it was difficult for people to get it, people at that time regarded colored glass as even more precious than jade.