Maryland Minerals: S to Z

This is the  fourth and final part of our compendium for the Maryland Minerals website seeking to list all mineral species and varieties of species known to have occurred in Maryland. As in the previous three portions of that compenium, the name of any major mineral family and/or group to which a species or variety belongs appears in parenthesis next to the species/variety name. Duly noted on the list also are a relatively few questionable or unverified occurrences. Also included and similarly noted are the names of species that the I.M.A. has since discredited. Images of Maryland-collected specimens arranged by county for many of these species can be viewed at the website's Maryland-collected minerals slideshow.


For nearly all of information in this compendium, we are grateful to the following sources:

Minerals of Maryland by Charles Ostrander and Walter E. Price, Jr., Natural History Society of Maryland, 1940
Minerals of the Washington, D.C. Area by Lawrence R. Bernstein, Maryland Geological Survey, 1980
Smithsonian National Museum of Natural History Database.
Mindat

Continuing through the end of the alphabet, subsequent posts will cover the names of additional minerals that have been collected in Maryland.

Samarskite                                                                                
Saponite  ?
Scapolite (member of Scapolite Group)
Scheelite
Scolecite
Selenite (see Gypsum)
Sepiolite
Sericite (synonym for mucscovite)
Siderite
Siegenite (member Linnaeite Group)
Sillimanite
Silver
Smagardite (var. Actinolite, a member of Amphibole Group)
Smithsonite
Soapstone (see Talc)
Spessartine (Garnet Group)
Sphalerite
Spherosiderite

Sphene (synonym of Titanite, a member of Titanite Group) Spinel (Member of Spinel Group)
Staurolite
Stellerite
Stibiconite (Member of Romeite Group)
Stibnite
Stilbite (Member of Zeolite Group)
Stilpnomelane
Strengite
Strontianite
Strunzite (Member of Strunzite Group)
Succinite (synonym for Amber)
Sulfur
Talc
Tantalite (Discredited by IMA, see Columbite)
Tenorite
Tetradymite (Member of Tetradymite Group)
Tetrahedrite
Thulite (var. of Zoisite)
Thuringite  (a ferroan varitey of Chamosite)
Titanite (a member of Titanite Group)
Todorochite
Topaz
Torbernite
Tourmaline (synonymous with Tourmaline Group)
Tremolite (Member of Tremolite-Actinolite Series within Amphibole Group)
Turgite (a mixture of Goethite and Hematite-rejected by IMA)
Uralite
Uraninite (?)
Vermiculite (Alteration product of Mica that's a member of  Montmorillonite-Vermiculite Group)
Vesuvianite
Vivianite

Wad (Generic name for various manganese Oxides)
Water
Wavellite
Wernerite (a variety of Scapolite)
Williamsite (a variety of Antigorite a member of Serpentine Group)
Withamite (a variety of Epidote)
Wollastonite (a member of Wollastonite Group)
Wurtzite (Member of Wurtzite Group)
Xenotime
Xonotlite (Member of Xonotlite Group)
Zaratite
Zeolite Family
Zinnwaldite (Member of Mica Group)
Zircon
Zoisite