Description
6mm Mahogany Obsidian Bead Bracelet – Genuine Volcanic Glass Specimen
This 6mm Mahogany Obsidian Bead Bracelet is crafted from genuine mahogany obsidian, selected for its rich dark brown to black base colour accented by deep reddish patches. The bracelet features evenly sized 6mm round beads, creating a refined and versatile gemstone design suitable for everyday wear or inclusion within a mineral collection. The photograph provided shows the actual bracelet you will receive. Full sizing please see photo for accurate bead dimensions and overall proportions.
This genuine specimen includes a Certificate of Authenticity lifetime guarantee generic card, confirming the authenticity of the mahogany obsidian used.
Material Identification – Mahogany Obsidian (Volcanic Glass)
Mahogany obsidian is a naturally occurring volcanic glass formed from rapidly cooled silica-rich lava. Unlike crystalline minerals such as quartz, obsidian lacks a defined crystal structure due to its rapid cooling, classifying it as an amorphous igneous rock rather than a mineral species.
The primary composition of obsidian is silicon dioxide (SiO₂), typically exceeding 70 percent. The characteristic reddish-brown patches seen in mahogany obsidian are caused by iron oxide inclusions dispersed within the black volcanic glass matrix. These iron-rich areas create the distinctive mottled appearance that differentiates mahogany obsidian from pure black varieties.
Obsidian has a hardness of approximately 5 to 5.5 on the Mohs scale. When polished, it exhibits a bright vitreous lustre and smooth surface, making it well suited for bead carving and jewellery.
Geological Formation and Volcanic Origin
Obsidian forms in volcanic environments when felsic lava, rich in silica, erupts and cools so rapidly that atoms do not have time to arrange into a crystalline structure. This rapid quenching process produces natural glass with sharp fracture patterns known as conchoidal fractures.
Mahogany obsidian specifically forms when iron-rich components become concentrated within portions of the cooling lava flow. As the molten material solidifies, these iron inclusions create contrasting red-brown patches against the darker glass background.
Significant deposits of mahogany obsidian are found in volcanic regions such as the United States, Mexico and parts of Central and South America. The material used in this bracelet has been shaped and polished from natural volcanic glass, preserving its inherent colour variations and natural formation features.
Bead Craftsmanship and Bracelet Design
Each 6mm bead has been precisely shaped into a smooth sphere to ensure uniformity and comfortable wear. The smaller bead size offers a subtle and elegant look while clearly displaying the contrasting patterns of black and mahogany tones.
The high polish enhances the glassy lustre of the obsidian, allowing light to reflect sharply from the surface. The distribution of red-brown inclusions varies naturally from bead to bead, making each bracelet unique.
The bracelet’s balanced design allows the earthy colour contrasts to flow seamlessly around the wrist, suitable for stacking or standalone wear.
Geological and Collecting Interest
Mahogany obsidian is valued by collectors for its volcanic origin and distinctive coloration. As a natural volcanic glass, it provides an example of rapid igneous processes and silica-rich lava solidification.
Historically, obsidian has been used for tools and ornamental objects due to its sharp fracture properties and glossy finish. In polished bead form, it offers both geological significance and decorative appeal.
Authenticity and Presentation
This 6mm Mahogany Obsidian Bead Bracelet is a genuine volcanic glass specimen. The photograph shows the exact bracelet you will receive. Full sizing please refer to the photo for accurate scale and bead measurements.
Each bracelet includes a Certificate of Authenticity lifetime guarantee generic card, providing assurance of the authenticity of the mahogany obsidian used.
A striking and geologically fascinating bracelet, this 6mm mahogany obsidian bead piece combines natural volcanic formation with polished craftsmanship, making it a distinctive addition to any jewellery collection or mineral display.




