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Roland Kröger, a physicist at the University of York, used spectroscopy to confirm the structure of two minerals, lazurite and phlogopite, that are only found together in lapis lazuli.

And the $127 “Lazurite statue of ‘Imperial Seal of his Majesty at Seventy’ ” from Taiwan.

The pigments included cinnabar, chromium green and lazurite — a blue-green copper compound — as well as tin-lead yellow, which artists stopped using after the 19th century because of toxicity.

In 1828 M. Guimet succeeded in making an artificial ultramarine, known now extensively as French ultramarine, which is little, if at all, inferior in beauty to lazurite.

The blue and white of the polished Lazurite walls pleased the eye, as did the intricately carved sandalwood furniture and bed frame.