ONLY the minerals JADEIT and NEPHRIT belong to the REAL JADE.
Especially in the jewelry sector, there are many stones that are offered as "JADE" but have nothing to do with REAL JADE. For example, China jade is just the mineral SERPENTINE, Transvaal jade is GROSSULAR, Siberian jade is just an artificial product and and and ........
Fine-fibered AKTINOLITH in grinding quality is a mineral that belongs to REAL JADE - hard and tough, mostly green with black 'dots but also black colors are possible. This JADE mineral is called : NEPHRITE.
Locations of grindable NEPHRIT are e.g. New Zealand(New Zealand JADE), Russia(Ural) or CANADA(British Columbia)
This raw piece - cut on two sides, not polished - photographed wet.
Location: Cassair Mine - British Columbia - CANADA
Weight: 510 g Dimensions: 15 x 6 x 3 cm