Handmade Chinese Turquoise Heart Necklace and Earrings

I made this many years ago with what the seller said was "Chinese Turquoise" which was described as turquoise mined in China. I am unsure if this is howlite that has been dyed. That being said this has a heart shaped center pendant. Silver tone chain, jump rings and spacer beads, toggle closure. Matching earrings as well. Never worn