Anyone know of

[Curt_in_W.Mass]

A printable page online that gives vdi ranges for different coins and jewelry,...im still perplexed that silver necklace i found, rings in as zinc penny..and common rule is to dig everything but seems most zinc pennies are half rotted away so ive have passed on lots of those "zinc penny" readings...thanks ..Curt

 

[Nancy-IL]

My theory is that since the necklace is so open and large piece of silver it will not have the VDI expected. Take one of the links off and you'll get a good hit. Even when Larry found the infamous 14KT 108 diamond beautiful bracelet (that fits on my wrist perfectly), it didn't show on the VDI positive numbers. I'm sure Larry can explain it in tech terms. Have I confused you? Sorry if so. HH, Nancy

 

[Larry (IL)]

Are you sure it is silver and not silver plated? Just because it might be stamped .925 does not mean it is pure silver. It is fairly common to get silver plated copper jewelry from Mexico stamped 925. Most segmented (real) jewelry, necklaces, bracelets in gold and silver will VDI in the lower VDI range.

This chart might help http://www.findmall.com/read.php?25,1125009,1125340#msg-1125340

Just noticed this chart is coins only, but use SEARCH for VDI chart for more of them.

 

[Curt_in_W.Mass]

Necklace is marked 925 from Italy with company name Livior,and is fairly heavy so dont believe its copper..way to heavy for copper...anyway did air test and maybe one out of five passes will come in with low vdi number..rest bounces around 55 to the dreaded zinc penny,the further away from coil more likely to ring low.Tried taking off a link..no luck..kinda solid looking but not likely..thanks for input...and thanks Larry for that link...Curt

 

[Rob (IL)]

VDI Range Some Possible Targets found in this VDI Range:
-95 to - 20 Antique iron relics, Iron nails, rusty iron junk, hot rocks
-20 to 0 Small gold nuggets, gold earrings, gold chains, small bits of iron, gum wrappers, small bits of foil
0 to 15 Platinum rings, smallest gold rings, gold earrings, gold nuggets, sterling chains, larger foil pieces, gum wrappers, bits of chopped aluminum cans
15 to 30 Most gold rings, Gold nuggets, Gold $1, Nickels, oval pull tabs, bent tabs, bits of chopped aluminum cans, zipper tabs
30 to 45 Largest gold rings, larger gold nuggets, Gold $2.50, Copper Nickel cents (1856 to 1864), Silver War Nickels, most square pull tabs, iron bottle caps, small aluminum screw caps, Costume jewelry
45 to 60 Gold $5, Corroded zinc cents, 3 cent silver, zinc pot metal junk, costume jewelry, brass keys, small aluminum screw caps
60 to 70 Indian Head Cents, small sterling earrings, zinc cents, hot wheels cars, larger aluminum screw caps
70 to 78 Gold $10, modern copper cents, half cents, two cent pieces, small sterling rings and sterling jewelry, hot wheels cars
79 to 81 Gold $20, sterling silver rings, clad or silver dimes
82 to 88 Clad or silver quarters, heavy sterling silver rings, Sacajewea