Yogo Gulch

Gemological Characterization of Sapphires from Yogo Gulch, …

https://www.gia.edu/gems-gemology/summer-2018-gemological-characterization-of-sapphires-from-yogo-gulch-montana

Yogo Gulch in central Montana is one of the most important gem deposits in the United States. Although very little material has been recovered there in recent years, …

Yogo Sapphires - Montana Gems of Philipsburg

https://montanagems.net/yogo-sapphires/

Yogo sapphires are mined in Montana at Yogo Gulch, 12 miles southwest of Utica, 45 miles west-southwest of Lewistown and east of Great Falls. …

Yogo sapphire - Wikipedia

https://en.wikipedia.org/wiki/Yogo_sapphire

Where to Dig for Sapphires in Montana - RareGoldNuggets.com

https://raregoldnuggets.com/?p=3440

Yogo Gulch was originally famous for its gold deposits, but the early gold seekers didn’t give them much attention. The presence of …

Digging Montana's Yogo Sapphires - Distinctly Montana

https://www.distinctlymontana.com/digging-montanas-yogo-sapphires

The yogo is the only sapphire in the world that does not need any type of treatment. Yogos maintain their high clarity and brilliance under artificial light. Their color …

Yogo Sapphire Mining - Montana Gem

https://www.montanagem.com/yogo-sapphire-mining/

Yogo Sapphire Mining In 1895, the Yogo Sapphire deposit was accidentally discovered by a gold prospector named Jake Hoover. While recovering gold from his sluice, Hoover found many shiny blue pebbles and eventually …

Yogo Gulch, Montana, Sapphire Mine - Mtlilygems.com

http://mtlilygems.com/mineinfo/Yogo%20Gulch/yogogulch,montan.html

Most of the Yogo Gulch sapphire still mined from this deposit never reaches the commercial market. The gem rough is being collected by Sapphire Village residents who have …

Yogo Gulch, Montana, Sapphire Mine - Mtlilygems.com

http://www.mtlilygems.com/mineinfo/Yogo%20Gulch/yogogulch,montaa.html

Yogo Gulch, Montana, Sapphire Mine Locale Shown above left is the south-western portion of the Yogo Gulch sapphire mine as it appeared in 1985. The sapphire deposit is actually a lamproite dike that intruded a …

Montana Gem: Specializing in Yogo Sapphires

https://www.montanagem.com/

The Yogo sapphires we sell are hand mined, untreated, and sustainably sourced from our claims in Yogo Gulch, Montana. Family Owned and Operated Since 1978 Featured …

Yogo Gulch, Yogo District, Little Belt Mountains, Judith Basin Co ...

https://www.mindat.org/loc-3872.html

Yogo Gulch, Yogo District, Little Belt Mountains, Judith Basin Co., Montana, USA Sapphire Yogo Gulch, Yogo District, Little Belt Mountains, Judith Basin Co., Montana, USA …