Augelite is a rare aluminum-phosphate mineral that usually forms colorless, white, pale yellow or apple-green crystals. It belongs to the phosphate mineral class and is especially recognizable in fine specimens as lustrous green crystals positioned on contrasting white quartz.
Augelite at a Glance
| Property | Augelite |
|---|---|
| Mineral group | Phosphate |
| Composition | Aluminum phosphate hydroxide, Al₂(PO₄)(OH)₃ |
| Colors | Colorless, white, pale yellow, light green, rarely blue or pink |
| Crystal system | Monoclinic |
| Habit | Tabular, prismatic, blocky, bladed and compact |
| Luster | Vitreous, sub-vitreous, resinous or pearly on cleavage surfaces |
| Transparency | Transparent to translucent |
| Mohs hardness | 4.5–5 |
| Cleavage | Perfect in one direction, with additional distinct cleavage |
| Tenacity | Brittle |
| Common use | Mineral specimens, micromounts and exceptionally rare faceted collector gems |
| Main care concern | Cleavage, edge chipping, scratching and detachment from matrix |
What Is Augelite?
Augelite consists of aluminum, phosphate groups and hydroxyl. Its ideal formula distinguishes it from better-known phosphate minerals such as apatite, variscite and wavellite.
The mineral’s name refers to the bright or shining appearance of its cleavage surfaces. Well-formed crystals can show unusually strong luster for a pale-colored phosphate, particularly when transparent green crystals are viewed against white quartz.
Augelite is not an industrial aluminum or phosphate ore. Its occurrence is too limited, and its crystals are valued primarily by mineral collectors.
The more widespread calcium-phosphate family is covered in the Apatite guide.
How Augelite Forms
Augelite forms in phosphate-rich geological environments where aluminum-bearing rocks interact with hydrothermal fluids or undergo metamorphism.
It occurs in several distinct settings:
- Hydrothermal tungsten and polymetallic deposits.
- Metamorphosed phosphate-bearing iron deposits.
- Phosphate-rich veins and fracture systems.
- Rare pegmatitic or metamorphic mineral assemblages.
The host environment influences crystal form. Peruvian material often develops as glassy green crystals associated with quartz, while Canadian occurrences may contain augelite with lazulite, siderite and other phosphates.
Augelite’s rarity does not mean it forms through one unique process. It indicates that the required combination of aluminum, phosphorus, fluid chemistry, pressure and temperature is uncommon.
Augelite Meaning and Symbolism
In modern crystal traditions, augelite is associated with careful observation, intellectual honesty and recognizing the essential part of a complicated issue.
Its pale green color is sometimes used symbolically to represent gradual improvement rather than sudden change. Its bright cleavage luster may also suggest uncovering useful information beneath an ordinary surface.
A collector may use augelite as a visual reminder to verify details, revise an assumption or approach a technical problem methodically.
Augelite Colors
Green Augelite
Apple-green and yellow-green crystals are the most desirable in the specimen market. The finest examples are transparent to translucent, strongly lustrous and sharply separated from their quartz matrix.
Green saturation varies considerably. Some crystals appear almost colorless in transmitted light but develop a stronger green impression against a white background.
A vivid natural crystal should still show realistic variation in tone. Uniform neon-green material with an artificial surface gloss deserves examination for coating, image editing or misidentification.
Colorless and White Augelite
Colorless crystals may be exceptionally transparent but are less visually obvious on quartz matrix. Their value depends heavily on crystal size, sharpness, luster and locality.
White or cloudy material can form compact masses, blocky crystals or altered surfaces. An opaque white piece is difficult to identify without a documented geological context or analytical testing.
Yellow, Pink and Blue Augelite
Pale yellow augelite is documented more frequently than pink or blue material. These unusual colors are generally collector specimens rather than established commercial gem varieties.
A rare color should not be accepted from photography alone. Associated minerals, coatings and lighting can create misleading color impressions.
Important Augelite Localities
Västanå Iron Mine, Sweden
The Västanå Iron Mine in Skåne County, Sweden, is the type locality. Augelite was described from this phosphate-rich iron deposit during the nineteenth century.
Historic Swedish specimens are generally collected for locality and scientific significance rather than large gemmy crystals. Original labels can substantially increase their collector value.
Mundo Nuevo, Peru
The Mundo Nuevo mining area near Huamachuco in La Libertad is the best-known modern source of high-quality augelite.
The district has produced sharp, transparent apple-green crystals positioned on white quartz. Some crystals reach several centimeters, which is exceptional for the species.
The most valuable specimens combine:
- One dominant undamaged augelite crystal.
- Smaller supporting crystals.
- Bright white or colorless quartz.
- Strong green contrast.
- Balanced composition without reconstructed matrix.
The nearby Ortega and Tamboras workings are also associated with notable material. Exact mine attribution should remain attached to the original specimen label.
Pasto Bueno, Peru
Pasto Bueno in Ancash has produced augelite within complex tungsten-bearing mineral assemblages. Specimens may be associated with quartz and other hydrothermal minerals.
Mundo Nuevo material tends to dominate the premium display market, but a well-documented Pasto Bueno specimen can carry important locality value.
Rapid Creek, Yukon
The Rapid Creek area in Canada is a classic phosphate-mineral locality. Augelite occurs there with lazulite, siderite and related minerals in iron-rich sedimentary and metamorphic environments.
Rapid Creek specimens generally have a different appearance from Peruvian quartz combinations. Collectors value them for phosphate associations and locality rather than vivid green display crystals.
The related blue phosphate is covered in the Lazulite guide.
Champion Mine, California
The Champion Mine in the White Mountains of California produced transparent material suitable for faceting. Historic facet-grade rough from this source is scarce, and modern availability is limited.
Faceted stones attributed to the Champion Mine should include provenance because colorless and pale augelite cannot be assigned to this locality visually.
Augelite vs. Variscite
Augelite and variscite are both aluminum phosphates, but their formulas and appearances differ.
Augelite is a crystalline aluminum phosphate hydroxide that can form transparent green crystals. Variscite contains structural water and is commonly found as opaque green nodules, veins and massive material used for cabochons.
Variscite is a more established ornamental gemstone. Augelite is primarily a mineral specimen and rare species gem.
Augelite vs. Wavellite
Wavellite is a hydrated aluminum phosphate that commonly forms radiating spheres, crusts and circular sprays. Augelite more often develops as individual tabular, prismatic or blocky crystals.
The two can occur in broadly phosphate-rich environments, but their crystal habits are usually very different.
Explore the radiating mineral in the Wavellite guide.
Is Augelite a Gemstone?
Transparent augelite can be faceted, but it is one of the least commercially available collector gemstones.
Most crystals are unsuitable for cutting because they are:
- Too small to produce a finished stone.
- Attached to valuable matrix.
- Cleaved or internally fractured.
- More desirable in natural crystal form.
- Too soft for ordinary jewelry use.
Known faceted stones are often below two carats. Cushion, rectangular and step cuts are practical because they can fit thin or blocky crystal sections while minimizing weight loss.
A current pale-green Peruvian example weighs 0.76 carat, illustrating the small size of most marketable augelite gems. Historic examples from California generally fall within a similar collector-oriented size range.
Augelite is unsuitable for an exposed daily-wear ring. A rare finished gem is better kept in a species collection or mounted in a protected pendant that is worn occasionally.
How Augelite Is Sold
Most augelite enters the market in one of four forms.
| Commercial form | Typical characteristics |
|---|---|
| Micromount | Tiny crystal requiring magnification |
| Thumbnail | One or several crystals on a small matrix |
| Miniature or cabinet specimen | Green augelite prominently positioned on quartz |
| Faceted species gem | Usually under two carats and purchased by rare-gem collectors |
Loose cutting rough is rarely offered. A transparent natural crystal may be worth more as a mineral specimen than the smaller faceted stone it would yield.
Repairs are not unusual in high-end matrix pieces because long crystals can detach during mining or preparation. Reattachment should be disclosed and reflected in the price.
Augelite Price and Value
Indicative July 2026 retail asking-price ranges are:
| Augelite form | Approximate retail range |
|---|---|
| Small micromount or ordinary thumbnail | $20–$100 |
| Attractive locality miniature | $100–$500 |
| Fine green augelite on quartz | $500–$2,000 |
| Exceptional Mundo Nuevo display specimen | $2,000–$6,000+ |
| Small transparent facet-grade crystal | $75–$300 per piece |
| Faceted augelite below one carat | About $150–$400 per stone |
| Fine faceted stone around one carat | About $250–$700+ per stone |
These ranges are broad because specimen composition matters more than weight. A small but perfectly positioned green crystal may be worth more than a larger cluster with damage, poor contrast or repairs.
The faceted market is especially thin. A 0.76-carat pale-green Peruvian stone has recently been listed near £175, demonstrating the premium associated with confirmed transparent material.
How to Identify Augelite
Possible identification clues include pale green or colorless crystals, vitreous-to-pearly luster, moderate hardness and strong cleavage.
Augelite can resemble:
- Apatite.
- Brazilianite.
- Herderite.
- Topaz.
- Pale beryl.
- Transparent variscite-related material.
- Several rare phosphate species.
Color and shape are not sufficient for confirmation. Refractive-index testing, Raman spectroscopy or X-ray diffraction may be needed, especially for faceted stones without matrix.
Begin with the observation-based process in How to Identify Crystals.
Augelite Hardness and Durability
Augelite has a Mohs hardness of approximately 4.5–5. It can be scratched by feldspar, quartz and most mainstream jewelry gemstones.
Cleavage creates an additional weakness. A sharp impact can separate a crystal along a smooth structural plane even when the surface remains relatively unscratched.
Its position among common materials appears in the Gemstone Hardness Chart.
Can Augelite Go in Water?
A brief rinse may be acceptable for a stable crystal on water-safe matrix, but routine soaking is unnecessary.
Water can enter cleavage fractures, loosen repairs or affect associated minerals. A valuable Mundo Nuevo specimen should be cleaned according to the entire mineral assemblage rather than augelite alone.
Avoid acids, strong alkaline cleaners and prolonged immersion.
How to Clean Augelite
Dust a specimen with a soft artist’s brush while supporting the matrix. Do not apply sideways pressure to projecting crystals.
A brief lukewarm rinse may be used for an unrepaired, stable quartz specimen. Dry it naturally without rubbing the augelite faces.
Avoid ultrasonic cleaners, steam, acids, abrasives and compressed air. Vibration and air pressure can detach crystals from matrix.
Buying Augelite
Ask for close photographs of crystal terminations, contact points and the underside of the matrix.
The seller should disclose:
- Exact locality and mine.
- Repairs or reattached crystals.
- Matrix reconstruction.
- Surface coatings.
- Damage hidden behind supporting crystals.
- Laboratory identification for a faceted stone.
A rare-species label is not enough for an expensive gem. Confirmed identity and provenance are central parts of augelite’s value.
Frequently Asked Questions
Is augelite rare?
Yes. The mineral occurs at a limited number of notable localities, and transparent crystals large enough for display or faceting are particularly scarce.
What color is augelite?
It is commonly colorless, white, pale yellow or light green. Blue and pink examples are rare.
Is augelite an apatite?
No. Both are phosphate minerals, but they have different chemical compositions and structures.
Can augelite be faceted?
Yes, although most cut stones are small and collected for mineral rarity rather than practical jewelry use.
Where does the best augelite come from?
The Mundo Nuevo mining area in Peru is particularly known for transparent apple-green crystals on white quartz.
Is augelite suitable for rings?
No. Its moderate hardness, brittleness and cleavage make it unsuitable for exposed daily-wear jewelry.
Find more rare A minerals through Crystals That Start With A or browse the Gemstone Guides collection.
Disclaimer: Augelite’s symbolic meanings are based on traditional spiritual interpretations, not scientifically proven emotional or medical effects. Do not ingest mineral material or use it as a substitute for professional healthcare.
