Maryland Counties and their Gems - Minerals - Stones
ProspectorPete.com
Maryland Gem and Mineral Locations by County
Gem Locations in the US
Allegheny - barite crystal, quartz crystal, siderite
Baltimore - antigorite, calcite crystal, garnet, jasper, quartz, serpentine, smoky quartz, Tourmaline
Calvert - jasper
Carroll - azurite, garnet, malachite
Cecil - onyx, serpentine, williamsite
Frederick - onyx, malachite
Garrett - picrolite, serpentine, williamsite
Hartford - jasper, serpentine
Montgomery - beryl, opal, serpentine
Washington - cuprite, onyx
Disclaimer: This is a list of known previous locations of Gems or Minerals found either recently or in the past. It is recommended you research further to find exact locations or mining properties to give you a better idea of where to start your search. As we get more information, we will post it here. Please check our online blog or join our Treasure Buddy Network (coming soon) for local information.
