Activity for Paul Harder‭

Type	On...	Excerpt	Status	Date
Answer	—	A: How can I use horsetail as a "indicator plant" to find gold while gold pannig? That doesn't necessarily mean that Equisetum arvense is a poor indicator of gold. It simply means that the plant does not take up enough gold in mineral rich areas to be significant (gold is a noble metal and as such it doesn't "like" to be ionic and I thing most plants use an ions charge in conjunc... (more)	—	about 7 years ago