Black Obsidian Tumblestone 10-20mm China Crystal Single Stone Display Decor Collectible Gift

Description

Black Obsidian Tumblestone

This listing is for a single Black Obsidian tumblestone from China, supplied as one individual stone. The average size is 10-20mm, making it a compact specimen for mineral collections, crystal displays, decorative arrangements and thoughtful gifts. Its tumbled form gives the stone a smooth, rounded presentation while retaining the naturally distinctive character associated with black obsidian.

The photograph shows a representative example; the specimen supplied may vary naturally in colour, shape, size and detail.

Mineral and Geological Information

Obsidian is a naturally occurring volcanic glass formed when lava cools rapidly, preventing the growth of large, visible mineral crystals. Black obsidian is recognised for its deep dark appearance and glassy composition. As a volcanic material, each piece reflects the geological processes that produced it, making obsidian an accessible and attractive addition to a rocks and minerals collection.

The supplied specimen is identified as Black Obsidian and has a China origin as stated in the product information. The tumbled finish provides a small, tactile format that is easy to arrange alongside other mineral specimens, geological samples and decorative stones. Because obsidian is glass-like, its surface can show individual variations in sheen, contours and small natural details from one stone to another.

Size and Individual Variation

This is a SINGLE STONE only. The stated average size is 10-20mm. Full sizing is shown in the photographs. Please use the photographs as a visual guide to the scale and presentation of the item, while allowing for the natural variation expected in a one-of-a-kind geological specimen. The supplied stone may differ from the representative photograph in exact outline, surface detail and tonal appearance.

Collecting and Display

A Black Obsidian tumblestone is well suited to beginner and established mineral collections because its compact size allows it to be displayed in specimen trays, small cabinets, desk arrangements or decorative bowls. It can also be used as an educational example when exploring volcanic glass, rapid cooling and the differences between glassy geological materials and visibly crystalline minerals.

Its simple black colouring works well with lighter minerals, colourful crystals and mixed natural history displays. The individual format also makes it suitable for gifting to collectors, geology enthusiasts, students and anyone interested in distinctive rocks and minerals. Display it as a standalone specimen or combine it with other tumblestones to create a varied collection of shapes, colours and geological materials.

Authenticity

This Crystal is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.

The certificate wording accompanies the item as a generic authenticity card. As with all natural geological specimens, the supplied stone has its own visual character and may not be identical to the example shown in the listing photographs.