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STONE TYPES

RHYOLITE (METARHYOLITE)
Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD.

Aphanitic Metarhyolite
Catoctin Mountain, MD

Aphanitic Metarhyolite
Catoctin Mountain, MD

 Aphanitic Metarhyolite
Catoctin Mountain, MD		 Aphanitic Metarhyolite
Catoctin Mountain, MD		 Aphanitic Metarhyolite
Catoctin Mountain, MD
  Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite, Morrow Mountain, NC. Aphanitic Metarhyolite, South Mountain, MD.  
  Aphanitic Metarhyolite
Catoctin Mountain, MD		 Aphanitic Metarhyolite
Morrow Mountain, NC		 Aphanitic Metarhyolite
South Mountain, MD		  
Banded Metarhyolite, Catoctin Mountain, MD. Banded Metarhyolite, Catoctin Mountain, MD. Banded Metarhyolite, Catoctin Mountain, MD. Banded Metarhyolite, Frederick Co., MD, M. Stewart Collection. Banded Metarhyolite, Frederick Co., MD.
Banded Metarhyolite
Catoctin Mountain, MD
 Banded Metarhyolite
Catoctin Mountain, MD

 Banded Metarhyolite
Catoctin Mountain, MD

 Banded Metarhyolite
Frederick County, MD
R. Michael Stewart Collection		 Banded Metarhyolite
Frederick County, MD
Mottled Metarhyolite. Mottled Metarhyolite. Mottled Metarhyolite-Pennsylvania-Carol Ebright Collection. Mottled Metarhyolite, Pennsylvania, M. Stewart Collection. Mottled Metarhyolite, Pennsylvania, M. Stewart Collection.
Mottled Metarhyolite Mottled Metarhyolite Mottled Metarhyolite
Pennsylvania
Carol Ebright Collection		 Mottled Metarhyolite
Pennsylvania
R. Michael Stewart Collection

 Mottled Metarhyolite
Pennsylvania
R. Michael Stewart Collection
Porphyritic Metarhyolite, Catoctin Mountain, MD. Porphyritic Metarhyolite, Catoctin Mountain, MD.   Porphyritic Metarhyolite, Catoctin Mountain, MD. Porphyritic Metarhyolite, South Mountain, MD.
Porphyritic Metarhyolite
Catoctin Mountain, MD		 Porphyritic Metarhyolite
Catoctin Mountain, MD		   Porphyritic Metarhyolite
Catoctin Mountain, MD		 Porphyritic Metarhyolite
South Mountain, MD
  Porphyritic Metarhyolite, North Carolina.   Porphyritic Metarhyolite, Franklin County, PA.  
  Porphyritic Metarhyolite
North Carolina		   Porphyritic Metarhyolite
Franklin County, PA		  
Red Metarhyolite. Red Metarhyolite, M. Stewart Collection.   Red Metarhyolite, South Mountain, MD. Red Porphyritic Metarhyolite-Frederick-Washington County Line-Carol Ebright Coll
Red Metarhyolite Red Metarhyolite
R. Michael Stewart Collection		   Red Metarhyolite
South Mountain, MD		 Red Porphyritic Metarhyolite
Frederick/Washington County Maryland
Carol Ebright Collection
  Green Metarhyolite-18FR93.   Carolina Slate-Quarry Sample.  
  Green Banded Metarhyolite
18FR93
Frederick County, MD		   Carolina Slate
Quarry Sample		  


Copyright © 2012 by Maryland Archaeological Conservation Lab
Updated: 4/30/14

Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite-Catoctin Mountain, MD. Aphanitic Metarhyolite, Morrow Mountain, NC. Aphanitic Metarhyolite, South Mountain, MD. Banded Metarhyolite, Catoctin Mountain, MD. Banded Metarhyolite, Catoctin Mountain, MD. Banded Metarhyolite, Catoctin Mountain, MD. Banded Metarhyolite, Frederick Co., MD, M. Stewart Collection. Banded Metarhyolite, Frederick Co., MD. Mottled Metarhyolite. Mottled Metarhyolite. Mottled Metarhyolite-Pennsylvania-Carol Ebright Collection. Mottled Metarhyolite, Pennsylvania, M. Stewart Collection. Mottled Metarhyolite, Pennsylvania, M. Stewart Collection. Porphyritic Metarhyolite, Catoctin Mountain, MD. Porphyritic Metarhyolite, Catoctin Mountain, MD. Porphyritic Metarhyolite, Catoctin Mountain, MD. Porphyritic Metarhyolite, South Mountain, MD. Porphyritic Metarhyolite, North Carolina. Porphyritic Metarhyolite, Franklin County, PA. Red Metarhyolite. Red Metarhyolite, M. Stewart Collection. Red Metarhyolite, South Mountain, MD. Red Porphyritic Metarhyolite-Frederick-Washington County Line-Carol Ebright Coll Green Metarhyolite-18FR93. Carolina Slate-Quarry Sample.