Sativa
Member
- Joined
- May 17, 2018
- Messages
- 400
re egg shell niminer composition:
ideally, irganic eggs, and if applicable - don't use the bit of the shell with the ink stamp!
About 95% of the dry eggshell is calcium carbonate weighing 5.5 grams.
The average eggshell contains about .3% phosphorus and .3% magnesium and traces of sodium, potassium, zinc, manganese, iron & copper.
ideally, irganic eggs, and if applicable - don't use the bit of the shell with the ink stamp!