May 6, 2023 · Citrine

Discover the Beauty and Rarity of Oregon Sunstone: A Gem of the Pacific Northwest

Oregon Sunstone: A Gem of the Pacific Northwest

Oregon Sunstone, also known as “Oregon citrine,” is a unique gem that can only be found in the Pacific Northwestern region of the United States. This beautiful and rare stone has gained popularity among jewelry enthusiasts due to its stunning colors, rarity, and durability. In this article, we will explore what makes Oregon Sunstone so special and why it should be on your radar when considering fine jewelry.

What is Oregon Sunstone?

Oregon Sunstone is a type of feldspar mineral that gets its name from its origin in Oregon’s high desert region. The stone’s color ranges from clear to yellow, orange, or red-brown hues with copper shimmers that create an almost glittery effect – making it one of the few gems that display a natural play-of-color and a unique optical phenomenon called aventurescence.

Unlike other gemstones such as diamonds or sapphires which are mined underground, sunstones are found near the surface making them easier to extract through open-pit mining methods. While some commercial mines have been established in other parts of the world like Norway or Tanzania producing similar stones with varying quality, none come close to matching the beauty and uniqueness of those found in Eastern Oregon.

History & Origin

The first discovery of sunstone deposits dates back as early as 1908 when John Dyer discovered a cluster of sunstones while exploring Rabbit Basin – located about 14 miles east-southeast of Plush in Lake County. Later discoveries were made by Maynard Bixby who founded two claims near Warner Valley followed by other miners who set up their own claims across southeastern Oregon after World War II.

In 1987-88 Richard Tuthill Jr., an entrepreneur from Bend started marketing these stones under his brand “Spectrum” which brought international attention to this lesser-known variety. He was instrumental for starting an industry around them rather than being sold as a byproduct of other mining operations. Today, there are more than 20 active sunstone mines in Oregon that are operated by individuals or small family businesses.

Properties and Characteristics

The properties of Oregon Sunstones make them an excellent choice for jewelry making because they have a hardness rating of 6-7 on the Mohs scale which makes them durable enough to be worn daily without getting easily scratched or damaged. They also have a good refractive index (RI) ranging from 1.522 to 1.576, similar to those of quartz or topaz, which makes them perfect for faceting into gemstones.

Oregon Sunstones can vary greatly in color depending on their chemical composition, with some stones appearing crystal clear while others show varying degrees of yellow-orange-red hues and coppery glittery inclusions called schiller – due to the presence of copper nanoparticles inside the feldspar matrix. The more prominent this effect is, the higher its value will be among collectors and connoisseurs.

Types & Varieties

Oregon Sunstone comes in different types and varieties based on their color grades:

1. Champagne: This type has a pale yellowish tint that resembles champagne bubbles.

2. Classic: These stones have a bright yellow-orange hue with subtle copper shimmers.

3. Red: The rarest variety is found only at Dust Devil Mine near Plush Oregon; it has intense red tones with strong flashes especially when viewed under direct sunlight.

4. Bi-color/ Tri-color: These stones display two/three distinct colors separated by sharp lines – usually seen as orange-yellow-brown combinations – resulting from differing growth zones within the same crystal during formation.

Uses of Oregon Sunstone

Sunstones are mostly used for setting into fine jewelry like earrings, necklaces pendants or rings due to their durability and beauty but they also find use outside the realm of personal adornment such as art glass making, lapidary work or as collection specimens. The value of a sunstone depends on its size, clarity, cut and color intensity – the larger the stone with stronger schiller effect, the more expensive it will be.

Conclusion

Oregon Sunstone is a unique and beautiful gem that has become increasingly popular in recent years among jewelry collectors and connoisseurs. With its stunning colors and durability, it’s no wonder why this rare stone is making waves in the world of fine jewelry. If you’re looking for something special that not many people have seen before – look no further than Oregon Sunstone!

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