A quick note on how much copper is in a penny in Slug Necklace

» Jump to the end

By Bonehead
May 26, 2014

Pennies glued to a cardboard collar, to deter both slugs and weeds.

[View the item]

Xeramtheum

May 26, 2014 6:48 AM CST

Thread OP

Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!

This is an awesome idea but you want to use pennies made in 1981 and older. Those pennies are 95% copper. Pennies made after 1981 are only 2.5% copper and 95.5% zinc.

Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams

| @Xeramtheum | Post #623003 (1)

Horntoad

May 26, 2014 1:43 PM CST

Name: Jay
Nederland, Texas (Zone 9a)

Xeramtheum said:This is an awesome idea but you want to use pennies made in 1981 and older. Those pennies are 95% copper. Pennies made after 1981 are only 2.5% copper and 95.5% zinc.

Even though they are only 2.5% copper, it is a pure copper plating around a zinc core. So any slug crawling across a modern penny is still coming in contact with pure copper and it will have the same affect as an older copper coin.

wildflowersoftexas.com

| @Horntoad | Post #623337 (2)

Xeramtheum

May 26, 2014 1:57 PM CST

Thread OP

Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!

Ahh .. I did not know that. Thanks for the heads up!

Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
Douglas Adams

| @Xeramtheum | Post #623355 (3)

Bonehead

May 29, 2014 11:33 AM CST

Name: Deb
Planet Earth (Zone 8b)

I didn't take the time to sort out the vintage of pennies -- just slapped them on willy-nilly. It was a very quick project - glue, slap, glue, slap. A child would enjoy this one.

I want to live in a world where the chicken can cross the road without its motives being questioned.

| @Bonehead | Post #626109 (4)