Maryland Minerals

/Maryland is home to a surprising variety of minerals, reflecting the state’s complex geological history. This section highlights minerals found throughout Maryland, with special attention to specimens and localities in Harford County and the surrounding region. Along with photographs, you’ll find information about mineral properties, how they formed, and the geology that makes each occurrence unique.

Harford County Minerals

Actinolite Harford County. Specimen c/o MMNS
Mine fields are in Harford County, MD. Specimen c/o MMNS
Broad Creek, Harford County. Specimen c/o MMNS
Botryoidal Quartz, Harford County. Specimen c/o MMNS
Bysolite, Pylesville Harford County. Specimen c/o MMNS
Epidote, Harford County Specimen c/o MMNS