kyynelkivi
Kyynelkivi (Finnish for "tear stone") is a term used in the Finnish language with several overlapping, non-scientific meanings. Most often it denotes a stone or mineral that has a teardrop-like appearance or that is associated in folklore with tears. It is not a formal mineralogical or geological category; thus its exact definition varies by region and context.
Usage and contexts: In everyday speech, kyynelkivi may describe teardrop-shaped crystals or nodules—often quartz, calcite, chalcedony,
Distribution and notes: The term is primarily used in Finnish-language sources and regional dialects; there is