Black Obsidian Rough Large I (8.4Kg)

Black Obsidian Rough Large I (8.4Kg) – Natural Rough Volcanic Glass

Deep black, naturally rugged and satisfyingly substantial, the Black Obsidian Rough Large I (8.4kg) is an individual unpolished piece measuring approximately 27×16cm. Its broad, compact proportions put plenty of raw surface on display, from irregular edges and fractured faces to the subtle changes in sheen that make rough Obsidian so interesting under different light.

Product Details

• Stone: Black Obsidian
• Material: Natural volcanic glass
• Form: Large rough piece
• Weight: Approx. 8.7kg
• Size: Approx. 28x17cm
• Finish: Rough / unpolished
• Colour: Deep black
• Piece: Large I
• Natural variations in shape, texture, markings and edges are part of the individual piece

Black Obsidian Rough Large – Broad, Compact & Naturally Unpolished

No polishing has been used to make the exterior uniform. The changing faces, natural breaks and irregular outline are part of what you are collecting. Browse more substantial natural specimens in our Rough Crystal Pieces – Large collection.

How Does Black Obsidian Form?

Black Obsidian begins with silica-rich molten rock that cools extremely quickly. The rapid cooling prevents an orderly crystal structure from developing, creating natural volcanic glass instead of a crystalline mineral.

This gives Obsidian a geological identity quite different from quartz, calcite and many of the other materials commonly found in crystal collections. Browse stones by type in our Crystal Names collection.

Did You Know? Obsidian Has Been Used as a Natural Mirror

Obsidian is famous for sharp tools, but highly polished pieces have also been used as mirrors. Archaeological examples of polished Obsidian mirrors are known from ancient cultures, where the naturally dark glass could be worked into a reflective surface.

It is a fascinating contrast to a rough specimen like this one: the same volcanic material can appear rugged and irregular in its raw form, yet remarkably smooth and reflective once carefully polished.

Why Rough Black Obsidian Isn’t Visually Flat

Its colour may be predominantly black, but that does not mean the surface lacks variation. Rough faces can reflect light differently depending on their angle, while fresh fractures may appear smoother or glossier than more textured sections.

Moving the piece or changing the direction of the light can reveal those differences, giving the dark surface more depth than may be obvious at first glance.

Black Obsidian Meaning & Modern Crystal Traditions

Within modern crystal traditions, Black Obsidian is commonly associated with grounding, protection, strength and self-reflection. Its intense dark colour and volcanic origins have helped make it especially popular in contemporary metaphysical collections.

These are traditional and metaphysical associations rather than scientifically established effects. Explore more forms of this distinctive stone in our Black Obsidian collection.

How to Display Large Rough Black Obsidian

The approximately 13 x 11cm proportions make this piece useful when you want a substantial natural specimen without requiring a particularly long shelf. Its dark colour creates strong contrast beside pale or brightly coloured stones, while the raw exterior adds texture among polished shapes.

Because Obsidian can fracture to very fine edges, handle rough specimens carefully. Place this approximately 740g piece on a stable surface and avoid dragging its irregular edges across delicate furniture.

Frequently Asked Questions

How much does Black Obsidian Rough Large I weigh?

It weighs approximately 740g.

What size is the rough Black Obsidian?

It measures approximately 13 x 11cm.

Is Black Obsidian a mineral crystal?

No. Geologically, Obsidian is natural volcanic glass rather than a crystalline mineral, although it is commonly collected and sold alongside crystals.

Is this piece polished?

No. It is a rough, unpolished piece, retaining its natural irregular surfaces and edges.

Can rough Black Obsidian have sharp edges?

Yes. Obsidian can fracture to extremely fine edges, so rough specimens should be handled with care.

What is Black Obsidian traditionally associated with?

Within modern crystal traditions, Black Obsidian is commonly associated with grounding, protection, strength and self-reflection. These are traditional beliefs rather than scientifically established effects.

Is this listing for the individual piece shown?

Yes. This listing is for the individual Black Obsidian Rough Large I, weighing approximately 740g and measuring approximately 13 x 11cm.

Perfect For

• Black Obsidian collectors
• Large rough stone displays
• Volcanic glass collections
• Natural mineral displays
• Dark crystal collections
• Unpolished stone lovers
• Compact statement pieces

Beautifully raw.