For more than thirty
years Excalibur Mineral Corp. has been providing private collectors,
researchers, major universities and museums throughout the world
with reliably identified, rare and unusual mineral samples for science
Mineral News, The Mineral
is published monthly and is filled with timely articles about field
collecting, descriptive mineralogy and new mineral finds.
The Hudson Institute
of Mineralogy is dedicated to the discovery, study and preservation
of rare mineral species, and to increasing public awareness and
appreciation of the mineral kingdom through outreach and education.