Are Montana sapphires from Montana?
A Montana sapphire is, simply, a sapphire from Montana. Yogo sapphires are also Montana sapphires, but originate from a particular deposit known for its excellent cornflower blue color. Both sapphires and rubies are gem-quality corundum. Rubies are the red variety, while all other colors are sapphires.
Where are Montana sapphires from?
Fancy Montana Sapphires are found in three major areas in the western half of the state: Missouri River near Helena, Rock Creek in the Sapphire Mountains, and Dry Cottonwood near Deer Lodge. These sapphires vary greatly from the Yogo Sapphire in that most of the sapphires require heat treating.
What makes Montana sapphires different?
One of the most striking differences between Montana Sapphires and Sapphires from other areas of the world is their color. Sapphires from Montana are unique in that they naturally occur in light pastels, unique blue-greens, and smoky grays. So, a Montana Sapphire could be a calming bathwater green or a sky blue-grey.
Are Montana sapphires more valuable?
Due to the limited resources for the Montana sapphires, a majority of the natural Montana sapphires will be under 1ct. To be specific, the majority is under 1/2ct and a very limited supply of the sapphires are over 1ct, which makes the stone substantially more expensive per carat.
How rare are Montana sapphires?
Are Montana Sapphires Rare? Montana sapphire is not found in very large rough pieces. Considering that a rough nugget will yield a cut stone only about 1/3 of the original size means that large, fine quality faceted Montana sapphires are very rare.
What are Montana sapphires called?
Yogo sapphires are blue sapphires, a colored variety of corundum, found in Montana, primarily in Yogo Gulch (part of the Little Belt Mountains) in Judith Basin County, Montana. Yogo sapphires are typically cornflower blue, a result of trace amounts of iron and titanium.
Why are Montana sapphires special?
Strict guidelines for mining in the states means that Montana sapphires have much less of an impact on the Earth than stones from nearly anywhere else. Mostly found in the western half of the state, these gorgeous gems are famous for their rich and unusual colors.
Are Montana sapphires real?
There are no named varieties or species of Montana sapphire. There are rare star sapphires found in the Montana deposits, and the sapphires from Yogo Gulch are so famous that they are often referred to as “Yogo Sapphires.”
What is teal Montana sapphire?
Color. Teal Montana Sapphire: This captivating jewel is a type of ‘fancy sapphire’ and can be found in different shades ranging from medium blue to green. Currently, the rarest and most desired ones are those with an equal mix of blue and green.
What jewelry is Montana known for?
Perhaps one of the most popular and well known American Gemstones is Montana Sapphire. This is for good reason, too – Montana, known as the “Treasure State,” produces nearly all of the sapphire mined in North America.
Do Montana sapphires sparkle?
The ring turned out even more beautiful than we could have imagined. The way Jeff cuts their stones gives them more brilliance than you can find in most places. We’ve never seen a sapphire sparkle this much.
Are Montana sapphires heat treated?
The heat treatment process is done to not only improve the clarity but also to “develop” the color of the stone. … The process of heating the rutile causes the titanium of the rutile crystal to diffuse into the sapphire crystal lattice, and in the presence of trace amounts of iron a beautiful blue color will develop.
When were Montana sapphires discovered?
Sapphires were first found in Montana in 1865 by early gold prospectors mining the Missouri river near Helena. These sapphires were the first sapphires found in the United States that were of gem-quality.
What is cornflower blue sapphire?
Cornflower Blue Sapphire is the highly sought after color variety of Sapphire that bears pure blue hue similar to the color of a cornflower. Western astrology prescribes this gem to be worn as September Birthstone.
What are Montana diamonds?
Montana “Diamonds” Quartz Crystals for Rockhounds! Dead center in the great wide state of Montana, a deposit of quartz crystals can be found. Typically double terminated, squat crystals with very short c-axis, these come in clear, milky and smoky and available for people of all ages to find!