Galena, Maryland the lead ore known as galena. There is, however, no geological evidence for galena deposits on Maryland's eastern shore, and the story is likely apocryphal. Galena is home to a variety of small businesses for its size. Along with many antique shops, there is a diner, confectionery shop, convenience store and deli, organic and healthfoods market, pizza parlor, and recording studio, and wedding videography studio. As of the census of 2010, there were 612 people, 271 households, and 169 families residing in the town. The population density was . There were 284 housing units at an average density of .
Mineral Rock forming minerals – typically silicates or occasionally carbonates – have a specific gravity of 2.5–3.5. High specific gravity is a diagnostic property of a mineral. A variation in chemistry (and consequently, mineral class) correlates to a change in specific gravity. Among more common minerals, oxides and sulfides tend to have a higher specific gravity as they include elements with higher atomic mass. A generalization is that minerals with metallic or adamantine lustre tend to have higher specific gravities than those having a non-metallic to dull lustre. For example, hematite, FeO, has a specific gravity of 5.26 while galena, PbS,