Home Fossils Buying Fossils


Unfortunately if you're going to find fossils yourself you won't find the most beautiful or most rare fossils immediately. Many collectors expand their collection by buying fossils. But there are some risks. The fossil you want to buy, Is it real? What's the right price?

Very nice are replica's of fossils, but the buyer should know they are replica's and not real fossils. For example the picture to the right is a replica. Unfortunately, they are often sold as real fossils.

It's very important that you know the exact location of the fossil. If you don't the fossil is worth much less.

If you're going to a shop in order to buy fossils, you can see what you get. In many places are fossil-shops. Totally different it becomes when you're going to buy fossils over the internet. the only thing you see there is a picture and some description. Below is a list of the most occuring fakes and some things you have to watch for when you want to buy fossils.

Lots of Chinese dinosaur-eggs are offered on eBay. There is not much chance that they are real fossils.

On the left you see a picture of some fake dinosaur-eggs, offered on ebay. Built of concrete and resin.

Casts

Casts are very common. usually concrete is mixed with grained stone and put in a mould. After the concrete has dried the fake fossil is sometimes painted in the desired color. If you take a closer look at these "fossils" you can see that they are not really in the stone and maybe you could see air bubbles from the casting process.

Casts of trilobites are often recognizable by the absence of the shell. The fake trilobite to the right is made of clay.

 

Real fakes

Mainly Maroccan trilobites are often faked using plastic parts. These are glued together and placed in parts of rocks. Often they are placed together in a stone in a way you will never see in nature. A good method to test these trilobites is using a hot needle. Plastic trilobites will melt!


© Photo: Ivo Verheyen

This fake trilobite from Morocco is made of a plastic cast mounted on top of a piece of stone. Underneath the cast there is usually a hollow space. There is also often a slight difference in coloration of the top and bottom piece of the stone.

Assembled and retouched fossils

Retouching of real fossils with parts of other real fossils does often occur, particularly by Moroccan trilobites. Several incomplete trilobites are then assembled together et voilą, a complete trilobite can be sold.

Sometimes sellers also try to make a fossil look even more beautiful by, for example, painting them so the look better on the matrix. For example the fossil fish in the picture. This fossil has been painted with acryl-paint by the seller and washed with acryl-remover by a customer.

Tips:

  • If you buy something on the internet, always check the feedback of the seller. If he has no (positive) feedback then be careful.
  • If much fossils looking all the same are offered, they are likely to be fake.
  • If many fossils are on one piece of stone and there is a regular distance in between them they could be assembled or totally fake. Also be sure that the specimens on the stone could have lived together.
  • Be careful when fossils are offered that should belong to a museum. Fossils from China and Morocco are always suspicious!


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