actinoliite
ACTINOLITE
from the Dyer Gibraltar Quarry, Robeson Township, Berks County.
Steve Carter (Pennminerals.com) collection. Ron Sloto photograph.

agate
AGATE
from the Dyer Gibraltar Quarry, Robeson Township, Berks County.
Ron Sloto collection and photograph.

amethyst
QUARTZ, var. AMETHYST
from the Wheatfield Mine, Spring Township, Berks County.
Reading Public Museum collection. Ron Sloto photograph

andradite
ANDRADITE
from the Grace Mine, New Morgan, Berks County.
Ron Sloto collection and photograph.


ANDRADITE
from the Route 222 Road Cut Locality, Cumru Township, Berks County.
Ron Sloto collection and photograph.

apophyllite
APOPHYLLITE
from the Grace Mine, New Morgan, Berks County.
Ron Sloto collection and photograph.

aragonite
ARGONITE
from the Jones Mine, Caernarvon Township, Berks County.
Carnegie Museum of Natural History Jefferis collection. Ron Sloto photograph.


ARAGONITE
Ohnmacht Cave
Blue Marsh Lake,
State Hill, Berks County, Pennsylvania


ARAGONITE, MAGNETITE, PYRITE, CHALCOPYRITE, CCALCITE
Jones Mine
Berks County, Pennsylvania

aragonite
ARAGONITE
from the Jones Mine, Caernarvon Township, Berks County.
Bryn Mawr College Vaux collection. Ron Sloto photograph.

azurite
AZURITE
from the Fritz Island Mine, Cumru Township, Berks County.
Reading Public Museum collection. Ron Sloto photograph.

brucite
BRUCITE
from the Fritz Island Mine, Cumru Township, Berks County.
Bryn Mawr College Vaux collection. Ron Sloto photograph.

calcite
CALCITE
from the Eastern Industries Quarry, Oley Township, Berks County.
Ron Sloto collection and photograph.


CALCITE
from the Dyer Trap Rock Quarry, Birdsboro, Berks County.
Ron Sloto collection and photograph.

chabazite
CHABAZITE
from the Fritz Island Mine, Cumru Township, Berks County.
Reading Public Museum collection. Ron Sloto photograph.


QUARTZ, var. CHALCEDONY
from Flint Hill, Richmond Township, Berks County.
Carnegie Museum of Natural History Philadelphia Academy collection. Ron Sloto photograph.

copper
COPPER
from the Boyertown mines, Boyertown, Berks County.
Reading Public Museum collection. Ron Sloto photograph.

copper and card
COPPER
from the Jones Mine, Caernarvon Township, Berks County.
Reading Public Museum collection. Ron Sloto photograph.

datolite
DATOLITE
from the Grace Mine, New Morgan, Berks County.
Steve Carter (Pennminerals.com) collection. Ron Sloto photograph.

fluorite
FLUORITE
from the Eastern Industries Quarry, Oley Township, Berks County.
Bryn Mawr College Quickel collection. Ron Sloto photograph.


GISMONDINE

 from the Fritz Island Mine, Cumru Township, Berks County. Carnegie Museum of Natural History collection. Ron Sloto photograph.


GOETHITE
Udree Mine
Berks County, Pennsylvania


LIMONITE
from Fleetwood, Richmond Township, Berks County.
Reading Public Museum collection. Ron Sloto photograph.


LIMONITE
from the Seitzinger mine, Wyomissing, Berks County.
Reading Public Museum collection. Ron Sloto photograph.


MAGNETITE
from the Grace Mine, New Morgan, Berks County.
Steve Carter (Pennminerals.com) collection.
Ron Sloto photograph.


MAGNETITE
from the Grace Mine, New Morgan, Berks County.
Ron Sloto collection and photograph.


MALACHITE
from the Jones Mine, Caernarvon Township, Berks County.
Carnegie Museum of Natural History Brookmeyer collection.
Ron Sloto photograph.


MALACHITE
from the Jones Mine, Caernarvon Township, Berks County.
Carnegie Museum of Natural History Brookmeyer collection.
Ron Sloto photograph.


MESOLITE
from the Fritz Island Mine, Cumru Township, Berks County.
Carnegie Museum of Natural History Philadelphia Academy collection.
Ron Sloto photograph.


MOLYBDENITE
Antietam Dam,
Reading, Berks County, Pennsylvania


NATROLITE
from the Dyer Trap Rock Quarry, Birdsboro, Berks County.
Ron Sloto collection and photograph.


OPAL
from the Dyer Gibraltar Quarry, Robeson Township, Berks County.
Ron Sloto collection and photograph.


PREHNITE
from the Dyer Gibraltar Quarry, Robeson Township, Berks County.
Carnegie Museum of Natural History Brookmeyer collection.
Ron Sloto photograph.


PREHNITE
from the Dyer Gibraltar Quarry, Robeson Township, Berks County.
Ron Sloto collection and photograph.


PYRITE
from the Boyertown mines, Boyertown, Berks County.
Ron Sloto collection and photograph.

References, Guides & More

The book by Ron Sloto is also available on amazon. Reference books are just as important in rock / mineral / fossil hobby as the rock specimens themselves. They offer insight on the history of the location as well as other specimens found in the area. The Berks Mineralogical Society uses these guides for researching locations and identifying rocks, mineral, etc. If the club is to visit a site mentioned in the books, the club makes sure that it has proper permission to visit that site. The following section shows reference resources that have the latest information and are available online and through bookstores.

ROCKHOUNDING DELAWARE, MARYLAND AND THE WASHINGTON, DC METRO AREA

“With this informative guide, you can explore the mineral-rich areas’ of Delaware, Maryland, and Washington D.C., from the beaches to the mountains. It describes the areas’ best rockhounding sites and covers popular and commercial sites as well as numerous little-known areas. This handy guide also describes how to collect specimens, includes maps and directions to each site, and lists rockhound clubs. Rockhounding Delaware, Maryland, and Washington D.C. offers a complete introduction to this many-faceted hobby and is an invaluable sourcebook.”

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MINERAL COLLECTING IN PENNSYLVANIA

“This book was written with both the novice and the more advanced collector in mind. Localities were selected on the basis of abundance and variety of minerals that can be found there today. In addition, emphasis was placed on including as many different types of occurrences as possible so as to give the collector both geographic and geologic diversity. Brief geological summaries are given for each locality which provide useful information concerning the variety of rock types present, the origin of the various minerals and even some clues as to possible additional minerals which may be present but have not been recognized from that specific locality.”

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THE MINERALOGY OF PENNSYLVANIA

“This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.”

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FOSSIL COLLECTING IN PENNSYLVANIA

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THE MINES AND MINERALS OF BERKS COUNTY, PENNSYLVANIA

“Berks County, Pennsylvania, is the home of many famous and world-class mineral localities — the Jones Mine, Fritz Island Mine, and Grace Mine — to name just a few. This new book pulls together over 200 years of mining and mineral history under one cover. It is richly illustrated with 653 figures — old and new photographs, old maps, mine surface plans and cross sections, and photographs of minerals from museum, university, and private collections. Many of the old photographs have never been published before. An extensive bibliography is included. The Mines and Minerals of Berks County, Pennsylvania describes over 500 mines, quarries, and mineral localities. It includes the known history of each mine and locality and a list of reported minerals. Their locations are shown on a set of USGS topographic maps. Because many of the mines had several names over the course of their history, a comprehensive cross-index is provided.”

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ROUCKHOUNDING PENNSYLVANIA AND NEW JERSEY

“With this informative guide, you can explore the mineral-rich regions of Pennsylvania and New Jersey, from the beaches to the mountains. It describes the states’ best rockhounding sites and covers popular and commercial sites as well as numerous little-known areas. This handy guide also describes how to collect specimens, includes maps and directions to each site, and lists rockhound clubs in each the state. Rockhounding Pennsylvania and New Jersey offers a complete introduction to this many-faceted hobby and is an invaluable sourcebook.”

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GEM TRAILS OF PENNSYLVANIA AND NEW JERSEY

“Revised and updated, Gem Trails of Pennsylvania and New Jersey is the essential guide for veteran and new collectors alike. Follow gem trails to beautiful agate, jasper, galena, pyrite, quartz crystals, fossils, and much more! The authors become your personal guides to unearthing the beautiful geologic treasures found Throughout the best sites in Pennsylvania and New Jersey. Sites are presented with directions, rockhounding tips, descriptive text, maps, and numerous black and white photos. Rocks, minerals, and fossils found at the ends of the gem trails are pictured in full-color to aid in identification”

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