Elastic bracelet with 18–22 10 mm rainbow fluorite beads, sourced from Brazil. Rainbow fluorite combines several color zones — violet, green, blue, and white/transparent — in a single stone, distributed in bands or spots along each bead.
Item Specifications
| Mineral |
Fluorite (CaF₂ — calcium fluoride) |
| Variety |
Rainbow — natural multicolored zoning |
| Bead size |
10 mm diameter (±0.5 mm) |
| Number of beads |
18–22 units depending on wrist size |
| Finish |
Mirror polish — vitreous luster |
| Hardness |
4 Mohs — handle with care |
| Clasp |
No clasp — adjustable elastic thread |
| Origin |
Brazil |
| Treatment |
Untreated |
Beads in Detail
The multicolored zoning of rainbow fluorite is the result of variations in the mineral's chemical composition during its crystal growth: each color band corresponds to a distinct crystallization phase with different trace amounts of rare earth elements (yttrium, cerium) or color centers induced by natural radiation.
Fluorite has a lively vitreous luster and a transparency ranging from semi-transparent to translucent, allowing light to partially pass through each bead, amplifying the saturation of the colors. In direct natural light, the violet and green tones of the bracelet gain intensity and depth.
How Rainbow Fluorite Forms
Fluorite (CaF₂) is a halide that crystallizes in the cubic system from fluorine-rich hydrothermal fluids in vein deposits and skarn zones. The coloration originates from color centers: rare earth impurities (Y³⁺, Ce³⁺) replace calcium in the structure and selectively absorb certain wavelengths of light.
Fluorite in Lapidary Tradition
Fluorite was used in Europe since antiquity under the Latin name "fluorspar." The Romans valued it for carving vessels (the famous "vasa murrina" were probably partly fluorite) and in the 18th century, Saxon miners called it "miner's ore" due to its frequent presence alongside metallic veins.
In crystal tradition, fluorite is associated with mental clarity, concentration, and order — qualities projected onto its perfect cubic structure and orderly color zoning. This is shared as a cultural reference, not as medical advice.
How to Recognize Genuine Fluorite
Genuine fluorite has a clear vitreous luster and variable translucency that allows light to pass through in lighter-toned beads. A Mohs hardness of 4 is the most direct test: a steel key (Mohs 5.5) can easily scratch the surface of fluorite — if it cannot, it is not fluorite.
Frequently Asked Questions
Is this fluorite treated?
No detectable treatment. The violet, green, and blue colors are natural, produced by trace rare earth elements and naturally occurring color centers in the CaF₂ structure. Statement based on lapidary observation.
Is the bracelet fragile due to fluorite's low hardness?
With Mohs 4, fluorite can be scratched by coins (Mohs 3.5) and steel blades (Mohs 5.5). The beads are more vulnerable than those of garnet or tourmaline. We recommend not mixing them in the same bag with harder stones and avoiding direct impacts. This bracelet is more suitable for occasions than for intensive daily wear.
Does each bracelet have the same color distribution?
No. Each bead has a different color distribution, and the order in which they are strung determines the final ensemble. No two rainbow fluorite bracelets are exactly alike: the zoning is geologically unique in each mineral fragment.
Is the bracelet one size fits all?
Yes. The elastic thread adapts to most wrist sizes. The number of beads varies between 18 and 22 units; the diameter of each bead is 10 mm ±0.5 mm.
Can the bracelet get wet?
Fluorite can withstand occasional contact with water. The elastic thread may deteriorate with prolonged immersion. We recommend removing the bracelet when swimming or showering.
Does fluorite fluoresce?
Yes. Many varieties of fluorite show intense blue-violet fluorescence under ultraviolet (UV) light. Brazilian varieties are particularly known for this effect. You can check this with a 365 nm UV flashlight: beads with violet and blue zones often fluoresce clearly.
See also: mineral bracelets collection · faceted gemstones.
