Smithsonian museums continue to be closed to support the effort to contain the spread of COVID-19. Read a message from our director, and check our website and social media for updates.

Madstone - stone of halloysite

Madstone - stone of halloysite

<< >>
Usage conditions apply
Downloads
Location
Currently not on view
Object Name
Madstone
charm
madstone, halloysite
Physical Description
stone (overall material)
Measurements
overall: 1 3/8 in x 2 1/4 in x 1 5/8 in; 3.4925 cm x 5.715 cm x 4.1275 cm
ID Number
MG.143103
catalog number
143103
See more items in
Medicine and Science: Medicine
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Comments

Add a comment about this object