GeoGallery | Smithsonian National Museum of Natural History

The National Zoo and Smithsonian museums in the Washington, DC, area are closed on Tuesday, Jan. 27, due to inclement weather.

Smithsonian Institution

Smithsonian National Museum of Natural History

Abee (USNM 2096)::1001040

Abee

Acasta Gneiss (NMNH 116542-1)::10246659

Acasta Gneiss

NMNH 17101::1000978

Actinolite

Adamite (NMNH 121125)::1000961

Adamite

NMNH 171560::1000977

Aegirine with orthoclase

NMNH R19826::1000976

Afghanite with calcite

African Gems (NMNH G10160, G10162, G10182)::11031104

African Gems

Agate (NMNH 136385)::10246565

Agate

Ahumada (USNM 436)::1001041

Ahumada

Albite Moonstone (NMNH G3171)::10246086

Albite (var. moonstone)

Alexandrite Butterfly (NMNH G11815)::16905385

Alexandrite Butterfly

Alexandrites (NMNH G2042, G3407, G10065)::11064991

Alexandrites

Almandine-bearing schist (NMNH 93666)::10954903

Almandine schist

Amazonite (NMNH G4092-00)::10480252

Amazonite

Amblygonite (NMNH G10652)::12960595

Amblygonite

Amethyst Brooch (NMNH G5273)::10245913

Amethyst Heart Brooch

Garnet schist (NMNH 116658-14)::10954715

Amphibole-rock

NMNH 162534::1000979

Anatase

Andalusite in quartz vein (NMNH C3014)::10953763

Andalusite with quartz, muscovite, and biotite

Andesite lava (NMNH 116619-48)::10954809

Andesite

Andradite (var. demantoid) (NMNH G11402-00)::11028377

Andradite (var. demantoid)

Demantoid Garnets (NMNH G2150, G2175, G3627)::11064993

Andradite (var. demantoid)

Demantoid (NMNH G11479)::12960612

Andradite (var. demantoid)

Demantoid (NMNH G11480)::12960611

Andradite (var. demantoid)

Fluorapatite (NMNH G10091)::10447687

Apatite

Apatite (NMNH G11507)::13085268

Apatite

Apatite (NMNH G10571)::13085269

Apatite

NMNH 166780::1000969

Apatite with microcline

Apophyllite and prehnite (NMNH R9128)::10954304

Apophyllite with prehnite

Aquamarine and platinum ring (NMNH G11636)::13069319

Aquamarine ring

Aragonite (NMNH R12457)::10246475

Aragonite (var. flos ferri)

Sandstone (NMNH 116619-6)::10954345

Arkose

Attaway Ametrine (NMNH G10392)::11029277

Attaway Ametrine

Augen gneiss cube (NMNH 116619-2)::10953908

Augen gneiss block

NMNH 87824-1::1000962

Aurichalcite with hemimorphite

Azurite (NMNH 177311)::13851713

Azurite