According to Bong Tjin Fui tesis, Why the fruits could be process to be a stone/ fossil?
The Fruit that could be process as a fossil/ only the fruit who have a mutant genetics.
In the Evolution process the Fruits usually will be going to ripe (as a food chain) or as a circle of life.
To regenerate for the existing population of their species in the other side.
The fruit that having mutant genetics in their evulotion process become hard/ elastic (will be going to be Fossil).
This mutant fruit would be hard because it contain with alot of & heavy sticky consentrate.
The intercourse between the genetics factor with geology factor will trigger the preservative system works perfectly.
Geollogy factor, geography the accumulation of explosion from active mountain in high, medium and low scale.
The mud that come out from the earth crust in high, medium or low scale.
The calcify hill factor.