Short answer: in all practicality, you can't. Long answer: The stuff is glass, easily and abundantly faked. Examining material collected by an expert might give you an eye for the real stuff. Museums occasionally have identification days where they answer the public's questions. Sending it to a meteorite expert, or a lab for analysis, might provide an answer, assuming there's something unique about the stuff that will clearly point to it's meteoritic impact origin. The cost of analysis will greatly exceed the value of the moldavite. All of the above keeps me shy of moldavite, it's just too dodgy.
There is a lot of FAKE MOLDAVITE going around, often handcrafted in China, so you have to be careful. REAL MOLDAVITE (that is, authentic moldovite) is imported from Europe. It's important to go to a reputable supplier, which more often than not will be a rock shop or mineral store that specializes in the sale of crystals and minerals, One of the best sources for MOLDAVITE in NYC is called ROCK STAR CRYSTALS, a mineral dealer located in Manhattan. They have a hugh selection of moldovite and mooldavite jewelry in a wide range of prices.
A Moldavite is a rare crystal that many individuals seek. In order to shop for one, it would be best to go to an authentic dealer such as Kay Jewelers. Other websites like Amazon and eBay sell them as well, but those should be a last resort as the sale is done online.
The authentic burberry scarf has its own tags.
Emerald and moldavite are my two favorites. I'm not too sure on any others off-hand, but emerald is a more vibrant true green, and moldavite is an olive tinted medium green.
Have it certified by an expert.
The best way is to find out for yourself by touching moldavite. You can find it often at a crystal shop or metaphysical store. It is sold by the gram, and is kind of expensive, and it is often made into jewelry. If you happen to be in NYC, the largest selection of moldavite in NYC can be found at ROCK STAR CRYSTALS, the only gemstone metaphysical store that specializes in crystals for healing in NYC.
There are many places one may purchase moldavite rings for women online. One may look on the Kay Jeweler website, Zales, Amazon, or even HSN (Home Shopping Network).
An individual would be able to tell if an autographed football is authentic by reading the signature, as well as going and taking it to a specialist of which is involved in reading such things.
if it says '''jimi Hendrix was here'''
No one fakes Andrew Marc.
there should be patent number inside the coach purse.. also, by the design you can tell if its authentic but sometimes knockoffs can really resemble it.
http://blog.chasenantiques.com/2009/07/29/how-can-you-tell-an-etching-is-authentic/I hope this helps