🌸 -10% discount as a welcome offer from 50€ of purchase (cumulative with promotions), + discounts offered to professionals and for group purchases, contact us to find out more!
Lava Stone/ Volcano Stone! Round beads of 4, 6, 8 or 10 mm. Sold in 38/39 cm bead strands, in 17 to 21 cm bracelets, in 45 cm necklaces or 60 cm long necklaces. AA to AAA quality, superb beads, beautiful purity, perfect!
Please note: The pearl threads do not have a clasp, but if you wish, ask us and you will receive a bracelet, necklace or sautoir made to your measurements, 'ready to wear'!
- "If you would like a specific model or individual beads, please send us a message, thank you."
- Sales options :
.In 38/39 cm threads, pearl size of 6, 8 or 10 millimeters
.In bracelets from 17 to 21 cm (High resistance elastic thread)
.In 45 cm necklaces (Silver, Silver tone or Gold finish)
.In 60 cm necklace (Silver, Silver tone or Gold finish)
Assembly by Gem & Zen guaranteed for 2 years
For information:
Number of beads on a 38 to 40 centimeter thread depending on arrivals:
10 mm = 38 to 39 beads
8 mm = 48 to 49 beads
6 mm = 63 to 65 beads
4 mm = 96 to 98 beads
📋 Mineralogical sheet:
Characteristic
Detail
Name
Lava Rock / Volcano Rock
Category
Volcanic rock (basalt or andesite depending on origin)
Chemical formula
Mixture of silicates and oxides (mainly SiO₂ and Al₂O₃)
Color
Black, dark gray, sometimes reddish
Crystal system
Amorphous to microcrystalline depending on formation
Habit
Porous, light, rough masses
Hardness (Mohs)
6
Density
2.3–3.0 g/cm³
Glow
Dull to slightly glassy
Transparency
Opaque
Cleavage
None
Optical properties
Complete light absorption, porous surface
Main deposits
Volcanic areas of the world: Iceland, Italy, Indonesia, Japan, United States
When you shop at Gem & Zen, part of your money goes to Nepal's artisans from the 'Help in Action' association. We value sustainable and responsible entrepreneurship, which we express, among other things, by making our business processes more sustainable. We therefore donate a percentage of our annual profits to charitable organizations.
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