Raw Black Obsidian - 575g to 600g

Raw Black Obsidian

This striking raw black obsidian features deep jet-black colouring, glossy glass-like surfaces and dramatic angular edges. Broad, smooth fracture faces contrast with rippled textures and rougher areas, catching the light and revealing the character of this volcanic glass. A substantial addition to a mineral collection or a bold natural accent for a display shelf.

Physical Properties

Obsidian is a naturally occurring volcanic glass, composed mainly of silica. Unlike crystalline minerals, it has an amorphous structure. It typically measures around 5–5.5 on the Mohs hardness scale and breaks with curved, shell-like fractures, visible here in the sweeping surfaces and sharp ridges.

Geology & Formation

Obsidian forms when silica-rich lava cools rapidly, leaving little time for crystals to develop. This rapid cooling creates its distinctive glassy texture. The glossy faces shown in the photographs are characteristic fracture surfaces, rather than evidence of polishing.

Properties

In crystal traditions, black obsidian is associated with grounding, protection and self-reflection. It is often chosen as a symbolic companion for meditation, setting intentions and exploring personal patterns. These associations are spiritual beliefs rather than scientifically established effects.

Product Details

• Material: black obsidian.
• Form: raw / rough.
• Weight: 575g to 600g.
• Appearance: deep black with a glassy lustre, angular edges and curved fracture patterns.

Handle carefully, as raw obsidian can have very sharp edges. Dust gently with a soft cloth and protect it from knocks.

As a natural material, each piece may vary in shape, surface texture and appearance. Colour and shine may look slightly different under different lighting conditions.