6x Large African Tumble Stone - Black Onyx

No. The size is approximate, and natural shape, density and polishing affect both dimensions and weight. Any estimated quantity per kilogram should therefore be treated as a guide rather than a guaranteed piece count.

They are primarily loose, undrilled stones and may be too large or heavy for conventional stringing. Customers can still use selected pieces in wire cages, macramé holders or bespoke settings, provided the finished item supports the stone securely.

State clearly that photographs are representative and that colour, pattern, shape and inclusions will vary. Showing several examples of the same stone type can set realistic expectations and reduce returns caused by natural variation.

As the range contains minerals with different properties, there is no universal deep-cleaning method. Dust with a soft cloth and, where needed, wipe gently with a slightly damp cloth before drying; avoid harsh chemicals, steam and ultrasonic cleaners unless the specific gemstone is known to tolerate them.

Use shallow bowls or divided trays and avoid letting stones repeatedly fall onto hard surfaces. Different gemstones have different hardness and toughness, so keeping varieties separated also helps protect the polished finish.