Ice Minerals

Andalusite var. Chiastolite (set of 4 slices) from Lancaster, Worcester County, Massachusetts

Calcite var. Iceland Spar from Iceland

Calcite var. Iceland Spar from Iceland

Calcite var. Iceland Spar from Iceland

Calcite var. Iceland Spar from Helgustadir Mine, Reyoarfjörour, Iceland (Type Locality for Iceland Spar)

Calcite var. Iceland Spar from Helgustadur Mine, near Budarey, Iceland (Type Locality for Iceland Spar)

Calcite var. Iceland Spar from Helgustadir Mine, Reydarfjördur, Iceland (Type Locality for Iceland Spar)

Calcite var. Iceland Spar from Helgustadir Mine, Eskifjord, Iceland (Type Locality for Iceland Spar)

Diamond (9.97 carat cubic crystal with 2.57 carat sawn slice showing the gem diamond center) from Mbuji-Mayi (Miba), 300 km east of Tshikapa, Democratic Republic of the Congo (Zaire)

Elbaite Tourmaline var. Watermelon Tourmaline (matched pair of polished slices) from Dunton Quarry, Plumbago Mountain, Hall's Ridge, Newry, Oxford County, Maine

Elbaite var. Rubellite Tourmaline (matched sawn slices) from Malchanskoye (Malkhan) pegmatite field, Chitinskaya Oblast', Transbaikalia, Siberia, Russia

Ellestadite and Monticellite from Crestmore Quarry, Crestmore, Riverside County, California

Harkerite, Monticellite, Chalcocite from Camas Malag, Broadford, Isle of Skye, Scotland (Type Locality for Harkerite)

Harkerite, Monticellite, Chalcocite from Camas Malag, Torrin, near Broadford, Isle of Skye, Scotland (Type Locality for Harkerite)

Heulandite-Ca on Quartz-Opal var. Siliceous Sinter from Swan's Creek, Nova Scotia, Canada

Liddicoatite Tourmaline (set of 3 polished slices from a single crystal) from Alakamisy Itenina, south of Antsirabé, Fianarantsoa, Haute Matsiatra, Madagascar (Type Locality for Liddicoatite)

Liddicoatite Tourmaline (set of 5 polished slices from a single crystal) from Alakamisy Itenina, south of Antsirabé, Fianarantsoa, Haute Matsiatra, Madagascar (Type Locality for Liddicoatite)

Liddicoatite Tourmaline (set of 7 polished slices from a single crystal) from Alakamisy Itenina, south of Antsirabé, Fianarantsoa, Haute Matsiatra, Madagascar (Type Locality for Liddicoatite)

Magnetite with siliceous banding (Taconite formation) from Mesabi Range, Minnesota

Magnetite with siliceous banding (Taconite formation) from Mesabi Range, Minnesota

Magnetite with siliceous banding (Taconite formation) from Mesabi Range, Minnesota

Magnetite with siliceous banding (Taconite formation) from Mesabi Range, Minnesota

Merwinite in Monticellite-Spurrite from Crestmore Quarry, Riverside County, California (Type Locality for Merwinite)

Monticellite with Fluorellestadite var. Wilkeite from Crestmore Quarry, Riverside County, California

Priceite from Tick Canyon, Los Angeles County, California

Quartz var. Agate (polished slice of an agate nodule) from Rio Grande do Sul, Brazil

Quartz var. Agate (polished slice of an agate nodule) from Rio Grande do Sul, Brazil

Quartz var. Agate (polished slice of an agate nodule) from Rio Grande do Sul, Brazil

Quartz var. Agate (polished slice of an agate nodule) from Rio Grande do Sul, Brazil

Quartz var. Agate (polished slice of an agate nodule) from Rio Grande do Sul, Brazil

Quartz var. Agate (polished slice of an agate nodule) from Rio Grande do Sul, Brazil

Quartz var. Agate (polished slice of an agate nodule) from Rio Grande do Sul, Brazil

Quartz-Opal var. Siliceous Sinter from McKay's Head, Nova Scotia, Canada

Vesuvianite in Monticellite and Cuspidine var. Custerite from Crestmore Quarry, Riverside County, California

Vesuvianite in Monticellite and Cuspidine var. Custerite from Crestmore Quarry, Riverside County, California

Vesuvianite in Monticellite and Cuspidine var. Custerite from Crestmore Quarry, Riverside County, California

Vesuvianite in Monticellite and Cuspidine var. Custerite from Crestmore Quarry, Riverside County, California

Vesuvianite in Monticellite and Cuspidine var. Custerite from Crestmore Quarry, Riverside County, California

Vesuvianite in Monticellite and Cuspidine var. Custerite from Crestmore Quarry, Riverside County, California

Vesuvianite in Monticellite and Cuspidine var. Custerite from Crestmore Quarry, Riverside County, California