I got an email today from a company that advertised all the colors of turquoise.. I'm rolling my eyes! there was Navy Blue, PINK! Prussian Blue and my "favorite" Violet! ( ICK!) .. OK to be fair they did say dyed.
but here's my take on turquoise:
Turquoise is only blue or green! There is no such thing as white,White Buffalo,purple,pink,yellow or apple green turquoise! Well they exist but they aren't turquoise.
Turquoise is copper aluminum iron phosphate, chemical formula: CUA!6 (PO4)4 OH8 4H20
Howlite is calcium barium hydroxide,
Magnesite is magnesium carbonate,
This misinformation of the trade is misleading and in my humble opinion criminal!