a Minerals

Heulandite-Ca with Mordenite from Aurangabad, Maharashtra, India

Heulandite-Ca with Mordenite from Rat's Nest Claim, near Challis, Custer County, Idaho

Heulandite-Ca with Mordenite from Rat's Nest Claim, near Challis, Custer County, Idaho

Heulandite-Ca with Natrolite from DjupifjorOur, Iceland

Heulandite-Ca with Natrolite from DjupifjorOur, Iceland

Heulandite-Ca with Natrolite from DjupifjorOur, Iceland

Heulandite-Ca with Quartz from Garrawilla Station, near Gunnedah, New South Wales, Australia

Heulandite-Ca with Quartz from BerufjörOur, Iceland

Heulandite-Ca with Quartz casts after Anhydrite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca with Scolecite from Val Giuv, Switzerland

Heulandite-Ca with Stilbite and Quartz from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca with Stilbite, Quartz, Babingtonite, Laumontite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca with Stilbite-Ca from Shakur, Maharashtra, India

Heulandite-Ca with Stilbite-Ca from Pune District, Maharashtra, India

Heulandite-Ca with Stilbite-Ca from Pune District, Maharashtra, India

Heulandite-Ca with Stilbite-Ca on Quartz from Wadzira Mine, Nashik District, Maharashtra, India

Heulandite-Ca, Calcite Laumontite, Datolite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Calcite, Datolite from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Calcite, Laumontite from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Calcite, Laumontite, Quartz from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Calcite, Stilbite from Weldon Materials Watchung Quarry, Plainfield, Somerset County, New Jersey

Heulandite-Ca, Calcite, Stilpnomelane from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Chabazite from Skookumchuck Dam, Tenino, Washington

Heulandite-Ca, Chabazite, Calcite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Chabazite-Ca, Quartz, Datolite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Datolite, Prehnite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Datolite, Quartz from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Laumontite, Calcite, Gmelinite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Laumontite, Celadonite from Paterson (New Street Quarry), Passaic County, New Jersey

Heulandite-Ca, Laumontite, Datolite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Laumontite, Datolite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Laumontite, Prehnite from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Laumontite, Prehnite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, on Quartz with Prehnite from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Pectolite, Stilbite from Braen's Quarry, Haledon, Passaic County, New Jersey

Heulandite-Ca, Prehnite, Albite, Quartz from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Prehnite, Calcite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Prehnite, Laumontite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Prehnite, Laumontite, Quartz from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Prehnite, Quartz from Great Notch, Passaic County, New Jersey

Heulandite-Ca, Quartz, Calcite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Quartz, Calcite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Sphalerite, Quartz, Chabazite from New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Stilbite, Apophyllite from Jalgaon, Maharashtra, India

Heulandite-Ca, Stilbite, Calcite from Braen's Quarry, Haledon, Passaic County, New Jersey

Heulandite-Ca, Stilbite, Quartz, Albite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Heulandite-Ca, Stilbite-Ca, Prehnite, Babingtonite, Laumontite, Quartz from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Ca, Stilbite-Ca, Quartz, Calcite from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Heulandite-Sr with Quartz from Touch Reservoir Dam, SW of Stirling, Touch Hills, Stirlingshire, Scotland

Heulandite-Sr with Stilbite and Calcite from Touch Reservoir Dam, SW of Stirling, Touch Hills, Stirlingshire, Scotland

Heulandite-Sr, Calcite, Stilbite from Touch Reservoir Dam, SW of Stirling, Touch Hills, Stirlingshire, Scotland

Hidalgoite on Crocoite from Red Lead Mine, Dundas, Tasmania, Australia

Hilairite with Aegirine from Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada (Type Locality for Hilairite)

Hinsdalite pseudomorphs after Pyromorphite from Sylvester Mine, Zeehan District, Tasmania, Australia

Hinsdalite pseudomorphs after Pyromorphite from Sylvester Mine, Zeehan District, Tasmania, Australia

Hiortdahlite I from Langodden, Aroyskjærene, Langesundsfjorden, Larvik, Norway (Type Locality for Hiortdahlite I)

Hocartite in Franckeite from Chocaya-Animas Mine, Atocha-Quechisla District, Bolivia (Type Locality for Hocartite and Franckeite)

Hodgkinsonite and Franklinite from Franklin Mining District, Sussex County, New Jersey (Type Locality for Hodgkinsonite and Franklinite)

Hodgkinsonite, Franklinite, Willemite, Andradite and Zincite from Franklin, Sussex County, New Jersey (Type Locality for Hodgkinsonite, Franklinite and Zincite)

Hodgkinsonite, Franklinite, Willemite, Andradite and Zincite from Parker Mine dumps, Franklin, Sussex County, New Jersey (Type Locality for Hodgkinsonite, Franklinite and Zincite)

Hodgkinsonite, Hetaerolite, Willemite, Franklinite, Zincite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey (Type Locality for Hetaerolite, Zincite and Franklinite)

Hodgkinsonite, Willemite and Franklinite from Parker Shaft, Franklin, Sussex County, New Jersey (Type Locality for Hodgkinsonite and Franklinite)

Hodgkinsonite, Willemite, Franklinite from Hamburg Mine, Franklin Orebody, West Vein, Franklin, Sussex County, New Jersey (Type Locality for Hodgkinsonite and Franklinite)

Hodgkinsonite, Zincite, Barite from Franklin Mining District, Sussex County, New Jersey (Type Locality for Hodgkinsonite and Zincite)

Hodrushite, Chalcopyrite, Hematite, Siderite, Quartz from Hodrusa-Hámre, Banská Stiavnica, Slovak Republic (Slovakia) (Type Locality for Hodrushite)

Hogtuvaite from Hogtuva, Mo i Rana, Nordland, Norway (Type Locality for Hogtuvaite)

Holdenite, Willemite, Franklinite from Sterling Mine, Ogdensburg, Sterling Hill, Sussex County, New Jersey

Holfertite on Topaz from Starvation Canyon (Searles Canyon), Thomas Range, Juab County, Utah (Type Locality for Holfertite)

Hollandite from Luis Lopez manganese district, Socorro County, New Mexico

Hollandite in Quartz from Anketsaketsa, Ambatofinandrahana, Madagascar

Hollandite pseudomorphs after Manganite on Quartz from Albany County, Wyoming

Holtstamite (IMA 2003-047) included in Henritermierite from Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Holtstamite)

Honessite in Quartz Geode from US Route 27 road cut, Halls Gap, Lincoln County, Kentucky

Honessite in Quartz Geode from US Route 27 road cut, Halls Gap, Lincoln County, Kentucky

Honessite in Quartz Geode from US Route 27 road cut, Halls Gap, Lincoln County, Kentucky

Honessite in Quartz Geode from US Route 27 road cut, Halls Gap, Lincoln County, Kentucky

Honessite with Pyrite in Quartz Geode from US Route 27 road cut, Halls Gap, Lincoln County, Kentucky

Hopeite and Parahopeite from Broken Hill Mine, No. 2 Kopje open Cut, Kabwe, 140 km north of Lusaka, Zambia (Type Locality for Parahopeite)

Hoploscaphites Cheyennensis and Sphenodiscus Lenticularis Fossil from Fox Hills Formation, Pennington County, South Dakota

Hoploscaphites Fossil from Cretaceous - 100 million years old, Pierre Formation, Montana

Hoploscaphites Fossil from Fox Hills, South Dakota

Hoploscaphites Fossil from Fox Hills, South Dakota

Hoploscaphites Fossil from Fox Hills Formation, Pennington County, South Dakota

Hoploscaphites Fossil from Pierre Formation, Dawson County, Montana

Hoploscaphites Nicoletti Fossil from Fox Hills, South Dakota

Hornblende (3 crystals) from Edenville, Orange County, New York

Hornblende crystals on Quartz from Vesuvius, Italy

Hornblende in Quartz from Fresno County, California

Hornblende in Quartz from Cumberland, north of Pawtucket, Providence County, Rhode Island

Hornblende with Actinolite-Tremolite from Bear Lake, near Tory Hill, Bancroft District, Ontario, Canada

Hornblende with Fluorapatite and Fluorite from Glamorgan Township, Ontario, Canada

Hornblende, Franklinite, Calcite from Franklin, Sussex County, New Jersey (Type Locality for Franklinite)

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Hornblende-Pargasite in marble from Lime Crest Quarry (Limecrest), Sussex Mills, 4.5 km northwest of Sparta, Sussex County, New Jersey

Horvathite-(Y) and Sabinaite from Mont Saint-Hilaire, Québec, Canada (Type Locality for Horvathite-(Y))

Hubeite and Inesite from Fengjiashan Mine, Daye District, Huangshi, Hubei Province, China (Type Locality for Hubeite)

Hubeite on Quartz from Fengjiashan Mine, Daye District, Huangshi, Hubei Province, China (Type Locality for Hubeite)

Hubeite with Apophyllite from Daye, Huangshi, Hubei, China (Type Locality for Hubeite)

Hubeite with Apophyllite from Daye, Huangshi, Hubei, China (Type Locality for Hubeite)

Hubeite, Apophyllite, Inesite on Quartz from Fengjiashan Mine, Daye District, Huangshi, Hubei Province, China (Type Locality for Hubeite)

Hubeite, Inesite, Apophyllite, Quartz from Fengjiashan Mine, Daye District, Huangshi, Hubei Province, China (Type Locality for Hubeite)

Hubeite, Inesite, Apophyllite, Quartz from Fengjiashan Mine, Daye District, Huangshi, Hubei Province, China (Type Locality for Hubeite)

Hubeite, Inesite, Apophyllite, Quartz from Fengjiashan Mine, Daye District, Huangshi, Hubei Province, China (Type Locality for Hubeite)

Hubeite, Inesite, Apophyllite, Quartz from Fengjiashan Mine, Daye District, Huangshi, Hubei Province, China (Type Locality for Hubeite)

Huebnerite and Quartz from Pasto Bueno District, Pallasca Province, Ancash Department, Peru

Huebnerite and Quartz from Huallapon Mine, Pasto Bueno, Ancash Province, Peru

Huebnerite and Quartz from Huallapon Mine, Pasto Bueno, Ancash Province, Peru

Huebnerite and Quartz from Huallapon Mine, Pasto Bueno, Ancash Province, Peru

Huebnerite on Quartz from Sweet Home Mine, Alma, Colorado

Humite with Magnetite from Monte Somma, Napoli, Campania, Italy (Type Locality for Humite)

Hummerite with Carnotite from Hummer Mine, Paradox Valley, Montrose County, Colorado (Type Locality for Hummerite)

Hummerite with Carnotite from Hummer Mine, Paradox Valley, Montrose County, Colorado (Type Locality for Hummerite)

Hundholmenite-(Y), Allanite-(Ce), Fluorite var. Yttrofluorite from Mount Stetind, Hundholmen, Tysfjord, Nordland, Norway (Type Locality for Hundholmenite-(Y))

Huntite vein in Calcite from Crestmore Quarry, Crestmore, Riverside County, California

Hureaulite from Lavra do Criminoso, Sao Jose da Safira, Minas Gerais, Brazil

Hureaulite from Criminoso Mine, Minas Gerais, Brazil

Hureaulite and Rockbridgeite from Hagendorf, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany

Hureaulite with Barbosalite from Mangualde, Viseu District, Portugal

Hureaulite with Barbosalite from Mangualde, Viseu District, Portugal

Hureaulite with Barbosalite from Mangualde, Viseu District, Portugal

Hureaulite with Jahnsite from Tip Top Mine, Custer District, Custer County, South Dakota

Hureaulite with Reddingite from Jacao Mine, Galileia, Minas Gerais, Brazil

Hureaulite with Vivianite from Hagendorf, near Weiden, Bavaria, Germany

Hureaulite, Reddingite, Rockbridgeite from Jacao Mine, Galileia, Minas Gerais, Brazil

Hureaulite, Rockbridgeite and Vivianite from Lavra do Criminoso, Sao Jose da Safira, Minas Gerais, Brazil

Hutchinsonite and Baumhauerite from Lengenbach Quarry, Binntal, Wallis, Switzerland (Type Locality for Hutchinsonite and Baumhauerite)

Hutchinsonite and Orpiment from Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru

Hutchinsonite and Realgar from Lengenbach Quarry, Binntal, Wallis, Switzerland (Type Locality for Hutchinsonite)

Hutchinsonite, Orpiment and Barite on Pyrite from Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru

Hyalite Opal from Guanajuato, Mexico

Hyalite Opal on Albite from pegmatite prospect near Weymouth Pond, Oxford County, Maine

Hyalite Opal on Smoky Quartz from Erongo Mountains, 20 km north of Usakos, Damaraland, Namibia

Hyalite Opal on Smoky Quartz with Amethyst zones from Goboboseb Mountains, 43 km west of Brandberg Mountain, Erongo region, Namibia

Hyalite Opal on Topaz with Rutile inclusions from Durango, Mexico

Hyalophane from Zagradski Creek, near Busovaca, Central Bosnia Canton, Bosnia and Herzegovina

Hyalophane var. Manebach-twin from Zagradski Poptok Mine, Busovaca, 50 km northwest of Sarajevo, Bosnia-Herzegovina

Hübnerite (Hubnerite) with Quartz from Mina Huayllapon, Pasto Bueno District, Pallasca Province, Ancash Department, Peru

Hübnerite (Hubnerite) with Quartz from Black Pine Mine, Granite County, Montana

Hübnerite (Hubnerite) with Quartz from Black Pine Mine, Granite County, Montana

Hübnerite and Quartz from Pasto Bueno District, Pallasca Province, Ancash Department, Peru

Hübnerite and Quartz from Pasto Bueno District, Pallasca Province, Ancash Department, Peru

Hübnerite and Quartz from Pasto Bueno District, Pallasca Province, Ancash Department, Peru

Hübnerite and Quartz from Huallapon Mine, Pasto Bueno District, Ancash Province, Peru