Anyone ever ask you how big a coin was relative to U.S. coinage? Here's a chart to answer such questions (If my math isn't off)
How many U.S. Coins in a pound if they were minted from :
Gold
|
Silver
|
Copper
|
Platinum
|
Electrum
(50/50 G&S)
|
70-g
30-c
|
|
Penny
|
50.375
|
92.857
|
108.625
|
45.219
|
65.316
|
60
|
Dime
|
65.468
|
120.678
|
141.17
|
58.768
|
84.885
|
78
|
Nickel
|
32.317
|
59.57
|
69.686
|
29
|
41.9
|
38.5
|
Quarter
|
27.525
|
50.737
|
59.353
|
24.7
|
35.68
|
32.8
|
K. Half Dollar
|
14.082
|
25.958
|
30.365
|
12.64
|
18.259
|
16.782
|
A quick look at the chart above tells you a classical 1/10th pound coin is big, or thick.
Here's a another chart giving you the weights of coins based on thin coins only 1 mm thick and in various diameters.
Weight of Coins by diameter and metal (in grams)
|
Diam.
|
Gold 1mm thick
|
Silver
1mm
thick
|
Copper
1mm
thick
|
Platinum 1mm thick
|
Electrum
50/50
S&G
|
70gld
30cpr
|
|
5mm
|
0.4
|
0.217
|
0.1855
|
0.4456
|
0.3085
|
0.33565
|
|
10mm
|
1.6
|
0.868
|
0.742
|
1.7824
|
1.234
|
1.3426
|
|
15mm
|
3.6
|
1.953
|
1.6695
|
4.0104
|
2.7765
|
3.02085
|
|
20mm
|
6.4
|
3.472
|
2.968
|
7.1295
|
4.936
|
5.3704
|
|
25mm
|
9.99999999
|
5.425
|
4.6375
|
11.14
|
7.7125
|
8.319125
|
|
30mm
|
14.4
|
7.812
|
6.67799
|
16.0416
|
11.106
|
12.0834
|
|
35mm
|
19.6
|
10.633
|
9.0895
|
21.8344
|
15.1165
|
16.44685
|
|
40mm
|
25.6
|
13.888
|
11.872
|
28.5184
|
19.744
|
21.4816
|
|
50mm
|
40.0
|
21.7
|
18.55
|
44.56
|
30.85
|
33.565
|
|
60mm
|
57.6
|
31.248
|
26.712
|
64.1664
|
44.424
|
48.3336
|
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