Jadeite is a pyroxene mineral with composition NaAlSi2O6. It is monoclinic. It has a Mohs hardness of about 6.5 to 7.0 depending on the composition.
Scientific facts about the
Description and history of Jade, and the two
Jade is the gem name for mineral aggregates composed of either or both of two
Feb 11, 2014
VARIETY OF: both
A selection of antique, hand-crafted Chinese
In fact, they were thought to be one mineral type until 1863, when it was
discovered that they are scientifically different
Pyroxene Group - Clinopyroxene Subgroup . Used as a decorative stone or for carvings (see Jade ).
However, in 1863 a Frenchman, Alexis Damour, discovered that the material
known as "jade" could be divided into two different