<p>(public display, Field Museum of Natural History, Chicago, Illinois, USA)
</p>
<hr><p>“Jade” refers to more than one specific type of metamorphic rock.  The four categories of “jade” are:
1) jadeitite (jadeite jade)
2) nephrite/nephritite (nephrite jade)
3) chromian jade (maw sit sit)
4) serpentine jade
</p><p>Jadeitite (= jadeite jade) is a rare metamorphic rock composed of jadeite pyroxene - Na(Al,Fe)(Si2O6), sodium aluminum iron silicate.  The highest-quality jadeitite occurrence on Earth is in Burma, southeastern Asia.
</p>
The object seen here is a Chinese incense burner, carved from pinkish jadeitite (but called "lavender" jade).  This was made during the Qing Dynasty (Ching Dynasty).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/47445767@N05">James St. John</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/jsjgeology/49167301576/">Pink jadeitite Chinese incense burner (Qing period, 1644-1911) 1</a>