Here's a more detailed description:

* Size: They are approximately 0.5-1mm in diameter.

* Shape: Oval or slightly elongated.

* Color: Brownish-black, sometimes with a slightly reddish hue.

* Surface: Smooth or slightly textured.

* Weight: Extremely light, almost like dust.

To give you a better visual: Imagine a tiny, dark brown grain of sand, but much lighter.

Because of their small size, gerbera seeds are usually sold in bulk and often mixed with a filler material like sand or vermiculite to make them easier to handle.