Stromatolite slices

Stromatolite slices:
In this special shape, the extraordinary veining of this gemstone can be seen particularly well.
The banding of the different layers of rock, the lines of different brown and black shades can be seen wonderfully.
The stromatolite gemstone has been left largely natural, only the edge has been slightly rounded to avoid sharp edges and the surface has been polished.

Stromatolites are fascinating gemstones that have a long geological history. Here are some quick facts about them:

1. 1. Evolution: Stromatolites are formed by the growth and metabolism of microorganisms in bodies of water. They trap sediments and form characteristic layered structures.

   2. Oldest fossils: The oldest known fossils are mostly stromatolites. They could give us insights into the development of life from simple to more complex forms.

   3. Present occurrences: Recent stromatolites can be observed in Shark Bay in Western Australia and in Lake Thetis .

   4. Special shapes: Some stromatolites resemble a cauliflower on the outside.

   Interestingly, stromatolites are also used as healing stones . They are said to boost the metabolism and stimulate detoxification processes.