Howlite comes in various colours, which are not inherent to the stone itself, but rather a result of the dyeing process it undergoes. The turquoise shapes' deceptive appearance and fraudulent sales tactics can easily mislead people; be cautious! The price being accessible, it's likely that the stone is coloured howlite, with its characteristic subtle veining. 

That being said, Howlite has its own value, so you might enjoy having them in your collection.