Penn Minerals! - Classic Minerals and More from Pennsylvania

Welcome to Penn Minerals!

Our Mission:

  • To offer you the finest in Rocks, Minerals and Fossils from the Great State of Pennsylvania!
  • To keep you updated on productive collecting sites that are accessible to the general public.
  • To maintain a complete list of Rock and Mineral Clubs in PA to help you enjoy Rockhounding!


Mineral Galleries!

Galleries Updated February 23, 2023
Our Galleries are updated with new mineral specimens from the Joseph and Jeannie Dague Collection, and other notable collectors including C. Carter Rich, Martin L. Anne, J. Roger Mitchell, Robert Weaver, Jesse Jay Lininger, and William Lorah.

131 - Stilbite
Featured Historic Specimen
Frankford, Philadelphia
Philadelphia County, PA
4" x 3.1" (102mm x 78mm)
ex. Lucien W. Stilwell Collection, Deadwood,
Dakota Territories, circa 1884-1889

ex. University of Chicago Collection #2260

Pennsylvania Rock Clubs!

  • Visit the Club Page for an extensive listings of a Rock, Mineral, Lapidary or Pale-ontological Club Near You!
  •  Not Listed on our Rock Clubs Page?  Please visit the Club Page and fill out the information form provided!  We are waiting to hear from You!


Call for Pennsylvania Minerals

We are in need of Pennsylvania Mineral Specimens!  We will buy or trade individual specimens or entire collections.  If you have minerals from Pennsylvania that you wish to trade or sell please contact us.



Enter the Pennsylvania
Mineral Museum Here!

Fluorapatite, Actinolite - Keystone Trap Rock Quarry, Cornog, PA

Shows! Shows! Shows!

March 4-5, 2023 Wilmington, Delaware
59th Annual Earth Science Gem and Mineral Show 
Delaware Mineralogical Society
Double Tree by Hilton, 4727 Concord Pike (Rt. 202)Wilmington, DE 19803
Saturday 10:00–5:00, Sunday 11:00–5:00
March 10-11, 2023 Richboro, PA
47th Annual Micromount Symposium
by Leidy Microscopical Society
Advent Lutheran Church, 45 Worthington Mill Rd., Richboro PA 18954 Friday Noon-6:00, Saturday 9:00-6:00
March 25-26, 2023 Wysox, PA
Che-Hanna Rock and Mineral Club
Wysox Vol. Fire Hall, 111 Lake Rd., Wysox, PA 18854
Saturday 9:00-5:00, Sunday 10:00-4:00.
March 25-26, 2023 Chambersburg, PA
43rd Annual Show Franklin County Rock and Mineral Club
New Location: Eugene C. Clarke Jr Community Center
235 S Third St., Chambersburg PA 17201
Saturday 10:00-5:00, Sunday 10:00-4:00.
March 25-26, 2023 Plymouth Meeting, PA
Mineral Treasures and Fossil Fair 2023
Philadelphia Mineralogical Society
LuLu Temple, 5140 Butler Pike, Plymouth Meeting, PA
Saturday 10:00-5:00, Sunday 10:00-4:00.



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We are very pleased to offer MATRIX, Volume 1 through Volume 12, Number 1.
Single Issue Price Volumes
One and Two - $5.00 plus postage. 
Single Issue Price Volumes Three through Twelve - $7.50 plus postage


Volume 5 Number 1, Summer 1997 - South Carolina Issue
Volume 10 Number 2, Summer 2002 - South Dakota Part One
Digital Download Now Available!

Click Here for a complete listing of all issues including
a table of contents for each issue

Click Here to go directly to the ORDER MATRIX page
with a complete list including prices



Digital Download Now Available!

Penn Minerals and MATRIX are pleased to announce
The Field Collecting Diaries of
Peter Samuelson

is now available in PDF format!

Price - $15.00




Minerals, Localities, and Mineralogy
by Arthur Montgomery
Great companion book to
MATRIX Volume 8 Number 2
82 Pages with a Preface by Allen V. Heyl
Price - $20.00 plus postage


Click HERE to order "Reminiscences of a Mineralogist"

Here's What's in the Library!


The Rebersburg Fulgurite!

The Rebersburg Fulgurite was discovered near Rebersburg, Miles Township, Centre County, Pennsylvania in November 2015. The result of a massive lightning strike, the fulgurite formed what can only be described as an obsidian tree, wide at the base with a diminishing diameter farther from the initial strike, with bifurcating branches along the main trunk. It extended approximately 16 feet in length, with at least five branches, each up to 4 feet long. The base of the fulgurite trunk is over eight inches in diameter and comprised of a solid black glass core with a vesicular rim. Specimens from the fulgurite range in size and composition from the site of the impact to the ends of the branches. The largest intact piece is solid glass, approximately sixteen inches long and weighs nearly twenty-five pounds. Along with two other adjacent pieces, they form an impressive specimen nearly twenty-two inches long that weighs over forty-five pounds. Most pieces are between two to five inches, comprised mostly of vesiculated glass with embedded rock on the exterior. Some contain extremely rare iron silicide nodules up to 1cm in diameter. Analysis on the silcides is ongoing. The extremely rare mineral Gupeiite, previously thought only to occur from extraterrestrial sources, has already been confirmed. This is the largest fulgurite ever discovered in Pennsylvania and it may well be one of the largest fulgurites discovered in modern times. Its historical value is without question.

Visit The Rebersburg Fulgurite Website