Jump to content

How do I preserve a sand dollar fossil found at a beach?


Recommended Posts

We found a couple of sand dollar fossils in a hard matrix. From what I have read today I can’t get the  hard matrix off without some special air tools. What should I do to preserve the specimens? 

E51C7043-19BE-47F0-82AB-AAC4EE5CDC1C.jpeg

Link to post
Share on other sites

I have several sand dollars from near Daly City. They are quite stable and need no preservation. They also can be further prepped by grinding and polishing the cemented sand and outer layer of the echinoid.  

  • I found this Informative 1
Link to post
Share on other sites

Heavens no! Do not put it in a tumbler, that would destroy it.

It should be possible to sand it down with wet/dry sandpaper.

Start with a coarse grit (120) and work down to a fine grit (600+). The finer grit You use the better it will look.

You can polish it after sanding.

 

 

 

PS Welcome to TFF! and nice piece.

Link to post
Share on other sites

I was going to guess that that is Dendraster excentricus, but I think its Scuttilaster major?  I would buy an n exspensive dremel and grind down the rock parts using some type of grinding wheel and then some sanding barrels of different grits and then polish it.   I use a white ruge stick for metal to polish mine.

 

RB

MVC-025S.JPG

foredomhand.JPG

Toolcabinet.JPG

Dollar.jpg

IMG_0390.JPG

  • I found this Informative 1
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...