My wife Louisa McKay, son Clevalden and myself Clinton Cross mine turquoise out of Cripple Creek Colorado from the Burtis Blue Mine, also known as the Florance Mine. This Mine is owned by Mr. and Mrs. Burtis and has been owned from the same family since 1939, Wallace Burtis Jr. started mining turquoise with his father when he was a child and started letting us help mine in 2013, we now do all the mining and marketing.
Most turquoise being sold on the market is not natural and has something man made added to it to make it more stable, some have dye added to give it a more desirable color or pattern and a lot of the turquoise is not even turquoise but dyed Howlite or just plain dyed plastic. To find turquoise that does not need any treatments is rare. We are mining one of the few turquoise mines left that is producing high quality turquoise that does not need to be treated in anyway.
Turquoise on the Mohs Scale for hardness should at least be a 5 for you to not need to stabilize it anything less should be stabilized or it may break or even change in color over time. The turquoise that we are mining out ranges from a 6.5-7.5 in hardness on a Mohs Scale so this is a good high quality turquoise that does not change green over time but keeps it's natural color and shine.
I am a native from the Missisquoi of the Abenaki Nation and believe in the spirituality of the turquoise stone, and believe that turquoise should not be treated in anyway or it would lose its affects. Turquoise is a healing stone, giving stone, the Sky Stone and a December stone, and turquoise is the first stone to have value amongst the Indigenous people to make jewelry and trade. This stone was also found to be used by the Egyptians dated back 5,000 BC.