Howlite is a type of borate. It was first found in 1868 by a geologist named Henry How in Windsor, Nova Scotia. It is also known as White Buffalo Stone.
Howlite tends to form in irregular nodules (rather than crystals) that look like the florettes of Cauliflower with dark gray veining or spidery webs. Tiny crystals have been discovered in Tick Canyon in California and in Iona, Nova Scota.
Howlite absorbs dye easily and is often dyed to look like turquoise. When it is dyed to look like turquoise, it is sold as Turquenite. You can tell the difference in that Howlite is hard and shiny when it is polished the way real Turquoise is.