Topaz, elbaite, quartz, and albite from California on display in Hillman Hall of Minerals and Gems
Hillman Hall
Pyromorphite
This pyromorphite from Chester County in Pennsylvania is on display in Hillman Hall of Minerals and Gems.
Goethite found in Pennsylvania
Goethite found in Pennsylvania, displayed in Hillman Hall of Minerals and Gems
Smithsonite and gypsum
Smithsonite and gypsum in Hillman Hall of Minerals and Gems.
(photo by Hayley Pontia)
The great pegmatites of Minas Gerais in Brazil
The great pegmatites of Minas Gerais in Brazil are famous for producing the widest variety of colors in tourmaline gemstones. Carnegie Museum of Natural History has a wide variety of them on display in Hillman Hall of Minerals and Gems.
(photo by Hayley Pontia)
Calcite, sometimes referred to as “heart twin”
Calcite, sometimes referred to as “heart twin” on display in Hillman Hall of Minerals and Gems. Contact twins occur
when two or more crystals grow in contact with each other.
(Photo by Hayley Pontia)
