Stromatolite

Stromatolite means from the Greek flowing stone
Stromatolite is mostly found in the USA and Bolivia

Mineral class
Mixture of carbonates
(especially calcite, CaC03), oxides (quartz,
SiO2, and limonite, FeOOH) and layered silicates
(Clay minerals like kaolinite, formula:
Al4[(OH)8/Si4O10])

Mohs hardness: 3,5
Mohs hardness: 3
density: 2.7 - 2.9
fissility: none, uneven fracture
Line colour: white
Transparency: opaque

Healing Effects
Adaptability, promotes yieldingness, helps to process experiences