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"Yogo sapphire" is the preferred term for gems found in the Yogo Gulch, whereas "Montana sapphire" generally refers to gems found in other Montana locations. [18] More gem-quality sapphires are produced in Montana than anywhere else in North America. [18] Montana sapphires come in a variety of colors, though rubies are rare. [16] [18] [23]
The sapphires, called Yogo sapphires as they are mined near Yogo Creek, occur in a formation three miles (4.8 km) long and eight feet (2.4 m) across. [ 1 ] The mountains are named for a butte in the range, Belt Butte, itself named for a band of white rock which encircles it.
Montana Agate (1969) Nebraska [45] Prairie agate (1967) Blue chalcedony (1967) Nevada [46] [47] Metal: Silver (1977); Nevada's nickname is the Silver State: Sandstone (1987) Precious Gemstone: Virgin Valley black fire opal (1987) Semiprecious Gemstone: Nevada turquoise (1987) New Hampshire [48] Beryl (1985) Granite (1985); New Hampshire's ...
Frenchtown Pond State Park is a public recreation area located ten miles (16 km) northwest of Missoula in Frenchtown, Montana. The 41-acre (17 ha) day-use state park offers fishing, swimming, and non-motorized boating on a small, spring-fed lake with a maximum eighteen-foot (5.5 m) depth.
Dry Cottonwood Creek is a creek in Deer Lodge County, Montana. Approximately 10 miles (16 km) long, it flows northwest out of the southern reaches of the Boulder Mountains into the Clark Fork river near Deer Lodge, Montana. Sapphires are found along this creek. [2]
Frenchtown Pond State Park: Missoula: 41 17: 1972: Frenchtown Pond: Giant Springs State Park: Cascade: 675 273: 1972: Missouri River and Roe River: Granite Ghost Town State Park: Granite: 1 0.40: 1975: none: Abandoned 1890s silver boomtown. Greycliff Prairie Dog Town State Park: Sweet Grass: 98 40: 1974: none: Hell Creek State Park: Garfield ...
It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors. The only color corundum stone that the term sapphire is not used for is red, which is called a ruby. [1] Pink colored corundum may be either classified as ruby or sapphire depending on locale.
This is a list of mountain ranges in the state of Montana. Montana is the fourth largest state in the United States and is well known for its mountains. The name "Montana" is Spanish for "Mountain". Representative James Mitchell Ashley (R-Ohio), suggested the name when legislation organizing the territory was passed by the United States ...