Caroline from USA sent me a number of pictures asking me to identify the jade pieces.
From the pictures, the jade pieces can be identified as Nephrite Jade.
Nephrite Jade has a more fibrous composition unlike Jadeite Jade where the internal structure is more sugary and granular. Nephrite is more ‘greasy’ looking and the typical color is darkish green. Nephrite Jade occurs in other colors of russet brown, whitish, celadon and black. Mottled Green in Nephrite is also quite common, that is, dark spots may appear within the jade piece. So far Nephrite does not have lavender color.
If you can unhook the clasp from the jade pendant, then perhaps you can test for the specific gravity. SG of Nephrite is around 2.95. Any high school students will be able to help you determine the SG of a small piece of pendant.
Or perhaps you can test for the Refractive Index of the Nephrite Jade.
For more details on the differences between Nephrite and Jadeite Jade, you can read my post, here.
A Arthur Lau