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Quick answer: sunstone is a feldspar gemstone that shows a glittering, metallic sparkle called aventurescence, caused by tiny platelets of copper or iron-oxide minerals inside the crystal. Oregon sunstone, a labradorite feldspar with native copper inclusions, is the state gemstone of Oregon. Sunstone rates about 6 to 6.5 on the Mohs scale and has cleavage, so it needs gentle care. In crystal tradition it is linked with warmth, optimism and confidence; these are beliefs, not proven effects. The most common imitation is goldstone, a man-made glass.
Sunstone gets its name from the warm, glinting flashes that seem to move across its surface as it turns in the light. It belongs to the same mineral group as moonstone and labradorite, and like them it owes its beauty to the way light interacts with structures inside the crystal.
This guide covers what sunstone is, where it comes from, the difference between Oregon sunstone and other types, what it means in crystal tradition, how to care for it and how to spot imitations and treated stones. For a broader overview of crystal meanings and care, see our complete guide to crystal meanings, care and spotting fakes.
Sources: Gemological Institute of America (GIA), gem encyclopedia entries for sunstone and feldspar, and GIA research on andesine and copper diffusion; Oregon State Legislature (state gemstone designation, 1987); U.S. Bureau of Land Management (BLM), Sunstone Public Collection Area; Oregon Department of Geology and Mineral Industries (DOGAMI); Mindat.org mineral database. Crystal meanings reflect tradition and belief, not proven effects. Checked October 2026.
What Sunstone Is
Sunstone is not a single mineral. The name describes feldspar gems that show aventurescence, a sparkling effect caused by light reflecting off tiny, flat inclusions aligned inside the stone. Feldspars are among the most common minerals in Earth’s crust, but gem-quality sunstone is far less common.
According to GIA, most sunstone falls into one of two broad groups:
- Oligoclase and other plagioclase sunstones, where the sparkle usually comes from platelets of hematite or goethite (iron oxides). These stones tend to be orange to reddish brown, and notable sources include India, Norway, Tanzania and Russia.
- Oregon sunstone, a labradorite feldspar where the sparkle comes from tiny platelets of native copper. Oregon sunstone can be colorless, pale yellow, orange, red, green or even bicolored.
Some orthoclase feldspar can also show aventurescence and is occasionally sold as sunstone.
Physical properties
| Property | Detail |
|---|---|
| Mineral group | Feldspar (mainly plagioclase: oligoclase or labradorite) |
| Colors | Colorless, yellow, orange, red, brown; Oregon material also green and bicolor |
| Mohs hardness | About 6 to 6.5 |
| Cleavage | Two directions of cleavage |
| Optical effect | Aventurescence (glittery “schiller”) |
| Notable sources | Oregon (USA), India, Norway, Tanzania, Russia |
Why Sunstone Sparkles
Aventurescence happens when light strikes many tiny reflective plates inside a stone, all lined up in roughly the same direction. As the stone moves, the plates catch the light together, producing a glitter that looks like it lies just beneath the surface. GIA notes that in Oregon sunstone, the effect is caused by copper platelets, while in many other sunstones hematite or goethite platelets are responsible.
The size and density of the inclusions affect the look. Large, well-spaced platelets give bold flashes, while very fine, dense platelets produce a soft glow. In some Oregon stones the copper also colors the stone itself, giving red and green body colors.
Sunstone, moonstone and labradorite
All three are feldspars, and all three show optical effects:
| Stone | Effect | Cause |
|---|---|---|
| Sunstone | Aventurescence (glitter) | Reflective mineral platelets |
| Moonstone | Adularescence (soft floating glow) | Thin alternating feldspar layers scatter light |
| Labradorite | Labradorescence (colorful flash) | Light interference in fine layers |
Our guides to moonstone and labradorite explain those effects in more detail.
Oregon Sunstone
Oregon sunstone is found in lava flows in south central and southeastern Oregon. The Oregon Legislature designated it the official state gemstone in 1987.
The BLM Sunstone Public Collection Area
The U.S. Bureau of Land Management manages the Sunstone Public Collection Area north of Plush, Oregon, where members of the public can collect sunstones for personal, non-commercial use, according to the BLM. The area is remote, with no services, and road and weather conditions can change quickly. The BLM advises visitors to bring plenty of water, fuel and supplies and to check current conditions before going. Private, fee-based mines in the region also offer digging.
Because collecting rules and access can change, check the BLM’s current page before planning a trip.
Why Oregon sunstone is special
Most sunstone sources produce orange and brown stones. Oregon material is unusual for its range of colors, its copper inclusions and the large, clean pieces that can be faceted. Some stones show color changes depending on viewing direction, an effect called pleochroism.
The Andesine Controversy
In the mid-2000s, red and green feldspar sold as “andesine” or “Asian sunstone” became popular in jewelry. Gemologists, including researchers at GIA, later found that much of this material was pale feldspar that had been artificially colored by copper diffusion, a high-temperature treatment, and that it was often sold without disclosure.
The lesson for buyers is that brightly colored red or green sunstone, particularly when sold cheaply or without a clear origin, may be treated. Natural Oregon sunstone with these colors exists, but reputable sellers will state its origin and treatment status. GIA and other labs can test stones when the value justifies it.
Sunstone Meaning in Crystal Tradition
The meanings in this section come from modern crystal practice. They describe symbolism and intention, not proven effects, and are not a substitute for professional care.
Warmth and optimism
With its sun-colored sparkle, sunstone is associated in crystal tradition with warmth, joy and optimism. Some people keep it nearby during dark winter months or periods of low mood as a symbolic reminder of light. If low mood persists, talk to a healthcare professional.
Confidence and leadership
Sunstone is often described in crystal books as a stone of confidence, personal power and leadership. Practitioners may carry it before presentations or interviews.
Sacral and solar plexus chakras
Its orange and gold colors link sunstone with the sacral and solar plexus chakras in chakra practice. It is frequently paired with moonstone to represent balance between sun and moon.
Zodiac associations
Sunstone is commonly linked with Leo and sometimes with Libra and Sagittarius. These pairings differ between sources; our zodiac crystals guide explains how such lists are compiled.
Choosing Sunstone by Color and Sparkle
Color and schiller are the two features that matter most when you compare sunstones. Body color ranges from nearly colorless and pale champagne through orange and peach to deep red. Oregon material also comes in green and in bicolor stones that shift between red and green as you turn them.
Schiller, the sparkle, varies just as widely. A stone with dense, fine platelets looks like it holds a soft golden haze. One with fewer, larger platelets shows bold flashes that switch on and off as the stone tilts. Neither is better in every case; it comes down to personal taste and the type of jewelry.
Cutters often orient faceted Oregon stones so the copper schiller shows through the top of the gem, while cabochons tend to suit densely included material. If you are comparing several stones, look at them under the same light, ideally daylight and then a single spotlight, and rotate each one slowly.
Clarity matters too. Visible cracks, especially ones that reach the surface, can weaken a stone that already has cleavage. For a ring, choose a stone with as few fractures as possible and a protective setting.
How People Use Sunstone
Sunstone appears in several roles beyond jewelry. Some people keep a tumbled stone in a pocket or on a desk as a symbolic reminder of warmth and confidence. Others place sunstone and moonstone together on a shelf or altar to represent balance. Rough Oregon sunstone, especially stones collected personally, is often kept as a souvenir of a trip to the high desert. Wire-wrapped pendants are a popular way to show off rough pieces without cutting them.
Caring for Sunstone
Sunstone is reasonably durable for occasional wear, but its cleavage means a hard knock can split it.
Cleaning
- Warm, soapy water and a soft brush are the safest way to clean sunstone. Rinse well and dry with a soft cloth.
- Avoid ultrasonic and steam cleaners. GIA advises against them for feldspars because vibration and heat can worsen fractures or cleavage.
- Avoid harsh chemicals, which can damage the polish and metal settings.
For more on which stones tolerate water, see our guide to which crystals cannot go in water.
Wearing and storage
- Rings take the most knocks; protective settings such as bezels help.
- Pendants and earrings are lower-risk ways to wear sunstone daily.
- Store separately in a soft pouch, away from harder gems such as quartz, topaz and sapphire.
- Avoid sudden temperature changes, which can stress feldspar.
Cleansing in crystal practice
If you cleanse crystals, gentle methods such as sound, smoke or moonlight suit sunstone better than long soaks or salt. Our article on how to cleanse crystals compares the options.
How to Spot Fake Sunstone
Goldstone
The most common sunstone imitation is goldstone, a man-made glass containing tiny copper crystals. It is attractive in its own right, but it is not sunstone. Goldstone usually looks like this:
- Very uniform glitter, with sparkles of similar size spread evenly through the stone
- Glitter visible from all directions, rather than flashing at certain angles
- Reddish brown body color, also made in blue and green versions
- Possible round gas bubbles under magnification
Natural sunstone tends to have uneven, directional flashes that appear and disappear as you tilt the stone, and its body color varies.
Treated and misrepresented stones
| Issue | What to look for |
|---|---|
| Copper-diffused feldspar (“andesine”) | Very saturated red or green at a low price; vague origin |
| Dyed or coated feldspar | Color concentrated in cracks or at the surface |
| Glass | Bubbles, swirls, uniform color, mold marks |
| Mislabeled “sunstone” | Orange calcite or carnelian sold under the name, without any sparkle |
Checks you can do
- Tilt the stone under a single light. Real aventurescence flashes in directions as the stone moves.
- Use a 10x loupe. Look for platelet inclusions in natural stones; look for bubbles in glass.
- Ask about origin and treatment. Reputable sellers disclose whether stones are natural Oregon sunstone, other natural sunstone or treated material.
- Get valuable stones tested. For expensive red or green stones, an independent lab report is worth the cost.
Buying Sunstone
- Rough and tumbled stones are affordable and show natural color variation.
- Faceted Oregon sunstone commands higher prices, especially red, green and bicolor stones with strong copper schiller.
- Cabochons suit stones with dense glitter.
- Bracelets and beads are popular, but goldstone and treated feldspar appear often. Buy from sellers who name the material and its origin.
Common Mistakes With Sunstone
- Buying goldstone as sunstone. Check for uniform, non-directional sparkle.
- Using an ultrasonic cleaner. Feldspar’s cleavage makes this risky.
- Wearing it during heavy work. A hard knock can split the stone along cleavage planes.
- Assuming all red or green sunstone is from Oregon. Ask for origin and treatment disclosure.
- Collecting without checking rules. Public collection areas have limits and are for personal use only, according to the BLM.
Sunstone at a Glance
| Property | Detail |
|---|---|
| Mineral | Feldspar (oligoclase, labradorite and others) |
| Effect | Aventurescence |
| Mohs hardness | About 6 to 6.5 |
| Special note | Oregon state gemstone since 1987 |
| Main imitation | Goldstone (glass) |
| Traditional associations | Warmth, optimism, confidence (belief) |
| Care | Warm soapy water; no ultrasonic or steam |
Frequently Asked Questions
What is sunstone good for?
In crystal tradition, sunstone is associated with warmth, optimism and confidence. These are beliefs, not proven effects. As a gem, it is prized for its sparkling aventurescence.
Is goldstone the same as sunstone?
No. Goldstone is man-made glass with copper crystals. Sunstone is a natural feldspar with mineral platelets inside.
Where does Oregon sunstone come from?
Oregon sunstone comes from lava flows in south central and southeastern Oregon, including the BLM’s Sunstone Public Collection Area near Plush. It has been Oregon’s state gemstone since 1987.
Can sunstone get wet?
Brief contact with water is fine, and warm, soapy water is the recommended cleaning method. Avoid long soaks, ultrasonic cleaners and steam.
How hard is sunstone?
Sunstone rates about 6 to 6.5 on the Mohs scale and has cleavage, so it can split if struck hard.
What is the difference between sunstone and moonstone?
Both are feldspars. Sunstone shows a glittery sparkle from reflective inclusions, while moonstone shows a soft, floating glow from layered feldspar structures.
