Elastic bracelet with 17–20 12mm volcanic basalt beads, strung on high-strength elastic cord. Lava stone —basalt solidified during volcanic eruptions— has a natural porous texture that makes it a portable essential oil diffuser: one or two drops applied to the beads are retained in the micropores and release the aroma gradually throughout the day. The deep black color and 12mm size provide visual presence without excessive weight.
Product Details
| Mineral |
Volcanic Basalt (solidified lava stone) |
| Bead size |
12 mm diameter (±0.5 mm) |
| Number of beads |
17–20 units depending on wrist size |
| Finish |
Natural porous surface, slightly matte |
| Hardness |
5–6 Mohs |
| Clasp |
No clasp — adjustable elastic cord |
| Origin |
Material acquired from a lapidary wholesale market |
| Treatment |
No treatment |
| Aromatic use |
Suitable for essential oils — apply 1-2 drops onto the beads |
The beads in detail
The 12mm beads have a surface texture with micropores of varying sizes, a direct result of the volcanic solidification process. Touching the surface reveals a slight roughness, different from the perfectly smooth finish of harder stones like quartz or garnet. The specific gravity of basalt (around 2.8–3.0 g/cm³) is moderate: despite the 12mm size, the bracelet is not heavy on the wrist.
The black color remains uniform across practically all beads, with very subtle variations in the texture of the micropores — some beads show pores more concentrated in specific areas, creating a slightly different visual effect from bead to bead. This microstructural irregularity is characteristic of natural basalt and confirms its mineral origin.
How lava stone is formed
Basalt is a fine-grained volcanic igneous rock that forms when lava ejected during an eruption cools rapidly upon contact with air or water. Rapid cooling prevents the crystallization of large minerals (unlike granite, which crystallizes slowly at depth), and gases dissolved in the lava form bubbles that become trapped in the rock as it solidifies — leading to the characteristic porous texture. The black color comes from the high concentration of iron and magnesium-rich minerals (pyroxenes, olivine, magnetite).
Volcanic stone in lapidary tradition
Basalt has been used by volcanic civilizations throughout history: Mesoamerican peoples carved metates and sculptures from basalt, and Polynesians used volcanic rock in construction and rituals linked to fire deities. In Iceland and the Azores, lava stone has been a vernacular building material for centuries. The association between volcanic stone and the strength of the earth — solidified fire — is present in cultures across all continents.
In crystal tradition, lava stone is associated with grounding, stability, and transformation — the transition from fire to solid as a metaphor for change that settles. This is shared as a cultural reference, not as medical advice.
How to recognize genuine lava stone
Genuine basalt has an irregularly porous surface texture that is clearly perceptible to the touch and under magnification. The color is deep black, not perfectly uniform — slight gray variations can be seen in areas with different mineral concentrations. It is significantly heavier than black plastic or synthetic ceramic foam. When wetting the beads with water, the pores absorb moisture visibly — porous ceramic manufactured to imitate basalt does the same, but its pores are usually more uniform and regular.
Frequently asked questions
How are these beads used as an aromatic diffuser?
Apply 1–2 drops of essential oil directly onto 2–3 beads of the bracelet. The basalt's micropores absorb the oil and release it slowly for 3–6 hours, depending on the oil's volatility and ambient temperature. To change scents, wait for the previous oil to evaporate completely before applying another.
Does essential oil stain the bracelet?
Essential oils are absorbed by the pores and do not leave a visible stain on black basalt. However, oils with intense natural colorants (such as tea tree oil with chlorophyll) may leave a slight discoloration in very open pores. The elastic cord can become rancid over time if repeatedly soaked: apply the oil to the beads, not the cord.
Is this bracelet treated?
No detectable treatment. The black color comes from the original mineral composition of basalt (pyroxenes, magnetite), without dyeing or coating. Statement based on lapidary observation.
Is the bracelet one size fits all?
Yes. The elastic cord adapts to most wrist sizes (16–21 cm circumference). The number of beads varies between 17 and 20 units; the diameter of each bead is 12 mm ±0.5 mm.
Can the bracelet get wet?
Basalt withstands contact with water without issue. The elastic cord may deteriorate with prolonged or repeated immersion. We recommend removing the bracelet when swimming or showering.
How to clean the beads between aromatic uses?
To clean oil residues, rub the beads with a dry cloth or leave them outdoors in a sunny spot for several hours. The sun's heat accelerates the evaporation of residual oils.
See also: mineral bracelets collection · tumbled and natural stones.
