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Girasol Quartz
Girasol Quartz is silicate (microcrystalline-included quartz), SiO₂ with micro-inclusions. In the hand, it rates 7 on the Mohs scale, and it runs misty white-blue and foggy colorless with blue shimmer. Foggy 'moonlit' quartz with a soft blue-white inner glow that follows the light source, misty like opal, hard like quartz. Commercial material overwhelmingly from Madagascar; similar 'girasol' quartz from Brazil.
The geology.
Girasol Quartz carries the formula SiO₂ with micro-inclusions. It belongs to the trigonal system. Its listing category is silicate (microcrystalline-included quartz).
It sits at 7 on the Mohs scale. The surface reads vitreous with internal opalescent glow. Light behaviour is translucent, misty. Specific gravity runs 2.65. The streak is white. It breaks with conchoidal fracture, no cleavage.
Foggy 'moonlit' quartz with a soft blue-white inner glow that follows the light source, misty like opal, hard like quartz.
It turns up mostly as spheres, palm stones, towers or freeforms.
The origins.
Commercial material overwhelmingly from Madagascar; similar 'girasol' quartz from Brazil.
On value, the database notes: mid-range.
Traditional associations.
In energy work traditions, associated with gentle clarity and soft-spoken truth.
This is lore, and we label it as lore. The measurable facts are further up the page.
Spotting the real thing.
Foggy 'moonlit' quartz with a soft blue-white inner glow that follows the light source, misty like opal, hard like quartz.
Frequently confused with opalite glass in shops, the backlight color flip is the instant separator.
| Looks like | How to tell them apart |
|---|---|
| Opalite | Opalite is glass: orange flash when backlit, bubbles inside; girasol stays blue-white and bubble-free |
| Moonstone | Moonstone's glow rolls off cleavage layers and it shows flat flashes; girasol's mist is even throughout |
| Common opal | Opal is far lighter (SG ~2.1) and softer |
At-home tests.
A loupe and a window seat settle most questions about girasol quartz. No workshop required.
| Test | What you should see |
|---|---|
| Scratch check | Scratches glass (Mohs 7) |
| By eye | No orange backlight flash (vs opalite) |
| Under UV | Glow follows the light source around the stone |
Anything that scratches, burns or dissolves the piece is a lab job. Get it appraised rather than testing it apart.
Care & handling.
At 7 on the Mohs scale it stands up to everyday wear. It will still chip on a hard knock, so treat edges and points with respect.
It breaks with conchoidal fracture, no cleavage, which is worth knowing before you set it or drop it.
Warm water and a soft cloth clean almost everything. Ultrasonic tanks, steamers and household cleaners are where pieces get ruined.
A deeper look.
Extended detail on composition, sourcing, authentication and market value.
The physical record
The formula on record is SiO₂ with micro-inclusions. Crystal system: Trigonal. Specific gravity: 2.65. Streak: White. Cleavage and fracture: Conchoidal fracture, no cleavage.
How it reaches the market
Commercial material overwhelmingly from Madagascar; similar 'girasol' quartz from Brazil.
What it gets confused with
Opalite: Opalite is glass: orange flash when backlit, bubbles inside; girasol stays blue-white and bubble-free. Moonstone: Moonstone's glow rolls off cleavage layers and it shows flat flashes; girasol's mist is even throughout. Common opal: Opal is far lighter (SG ~2.1) and softer.
What it is worth
Mid-range.
Where buyers get caught
Frequently confused with opalite glass in shops, the backlight color flip is the instant separator.
One more thing
'Girasol' means sunflower in Spanish, the floating glow turns to follow light the way sunflowers track the sun.
An education-first guide.
No product links here. We do not sell girasol quartz, and a guide that only covers our own shelves would not be much of a guide.
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