Sapphire in Taiwan Province Province is not jade. Taiwan Province sapphire is not strictly jade, but a quartzite. Sapphire in Taiwan Province Province is dyed from quartzite, and does not contain jade, so sapphire in Taiwan Province Province can be said to be a fake and shoddy product.
After being processed, the color of sapphire in Taiwan Province Province is very similar to that of jasper, so people often regard the sapphire in Taiwan Province Province as fake jasper to make huge profits. People also call the sapphire in Taiwan Province Province "Biya", which raises the value of sapphire in Taiwan Province Province.
The most terrible thing about Taiwan Province sapphire is that it has a stone structure, because the stone structure will increase the weight, so people will obviously feel its weight when they buy Taiwan Province sapphire, which makes people mistakenly think that they are buying real jade.