Ism
Hero Member
- Jun 17, 2009
- 677
- 252
- Detector(s) used
- Tesoro Vaquero
Whites TDI
Minelab Sovereign GT
XP Deus
- Primary Interest:
- All Treasure Hunting
I hunt mostly sports fields during the summer months when farm fields are off limits. I'm very careful not to damage the turf and one can hardly tell I was even cutting plugs.
In sports fields I don't go deep, 4-5 inches is my max as I'm looking for jewelry and coins.
At any rate... My comment is an observation I have from digging hundreds of zinc pennies at these sites (small 925 silver jewelry has a VDI in the same range).
I live in Michigan, so this probably doesn't pertain to some areas of the country like TX, FL, AZ, etc. but I've noticed that almost always the zinc penny will be surrounded by a cluster of dirt and fine roots that I have to break apart to reveal the penny. At first, I thought the zinc was acting like a nutrient for the grass roots, but now I'm leaning towards the soil treating it as a foreign body and creates an abscess around it.
Has anybody else noticed this and what do you think about my hypothesis?
In sports fields I don't go deep, 4-5 inches is my max as I'm looking for jewelry and coins.
At any rate... My comment is an observation I have from digging hundreds of zinc pennies at these sites (small 925 silver jewelry has a VDI in the same range).
I live in Michigan, so this probably doesn't pertain to some areas of the country like TX, FL, AZ, etc. but I've noticed that almost always the zinc penny will be surrounded by a cluster of dirt and fine roots that I have to break apart to reveal the penny. At first, I thought the zinc was acting like a nutrient for the grass roots, but now I'm leaning towards the soil treating it as a foreign body and creates an abscess around it.
Has anybody else noticed this and what do you think about my hypothesis?
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