Corundum Case

Front view of corundum case.

 Sapphire - Ratnapura, Sri Lanka

 Ruby - Mogok, Burma

Top - Ruby - Mogok, Burma

Left - Ruby - Tanzania

Right - Ruby - Ampanihy, Madagascar

 Left - Ruby - Froland, Norway

Right - Ruby - Luc Yen Mine, Yen Bai, Vietnam

Ruby -  

 Sapphire - Bandelierskop, Transvaal, South Africa 

 Sapphire - Sri Lanka

 Sapphire with Spinel - Kenya

 Sapphire - Androy, Madagascar

Pyrite Case

Front view of pyrite case. 

Pyrite - Tasna, Potosi, Bolivia

Pyrite with Calcite - Santa Eulalia, Chihuahua, Mexico

Pyrite -  Huanzala Mine, Ancash, Peru

 Pyrite - Ambassaguas Mine, La Rioja, Spain

Pyrite - Rio Marina, Elba, Toscana, Italy 

 Pyrite - Navajun, La Rioja, Spain

 Pyrite - Huanzala Mine, Ancash, Peru

 Pyrite - Zacatecas, Mexico

 Pyrite with Quartz - Butte, Montana

 Pyrite with Quartz - Huanzala Mine, Ancash, Peru

Pyrite -  Peru

Calcite Case

Front view of calcite case.

Calcite - Stank Mine, Lancashire, England 

Calcite with Copper - Keweenaw Peninsula, Michigan

 Calcite - Pribram, Cechy, Czech Republic

 Calcite - Onyx Cave, Santa Rita Mountains, Arizona

 Calcite - Herja, Crisana-Maramures, Romania

 Calcite - Sardegna, Italy

 Calcite - Alston Moor, Cumbria, England

 Calcite with Quartz - Guanajuato, Mexico

Calcite - Santa Eulalia, Chihuahua, Mexico

 Calcite - Llanbarry Iron Mine, Pontyclun, Glamorganshire, Wales

 Calcite - Southwest Mine, Bisbee, Arizona

Calcite - Coahuila, Mexico

 Calcite - Tetjuche-Pristan, Primorskiy Kray, Russia

Calcite - Egremont, Cumbria, England 

 Calcite with Hematite - Stank Mine, Lancashire, England

 Calcite - Sweetwater Mine, Ellington, Missouri

Calcite - Schneeberg, Sachsen, Germany

 Calcite with Goethite - Faraday Uranium Mine, Bancroft, Ontario, Canada

 Calcite - Lawyers Mine, Treece, Kansas

 Calcite - Naica, Chihuahua, Mexico

 Calcite - Idarado Mine, Ouray, Colorado

 Calcite - York County, Pennsylvania

 Calcite - Stank Mine, Lancashire, England

 Calcite - Minerva Mine, Cave in Rock, Illinois

 Calcite - Bisbee, Arizona

Calcite - Copper Queen Mine, Bisbee, Arizona 

 Calcite with Galena - Andreasberg, Niedersachsen, Germany

 Calcite - Mahoning Mine, Cave in Rock, Illinois

Calcite - Charcas, San Luis Potosi, Mexico 

 Calcite - Irai, Rio Grande do Sul, Brazil

 Calcite - Rio Urique, Chihuahua, Mexico

 Calcite - Joplin, Missouri

 Calcite with Sphalerite - Charcas, San Luis Potosi, Mexico

Calcite - Santa Eulalia, Chihuahua, Mexico 

 Calcite with Galena - Ozark Lead Mine, Ellington, Missouri

Calcite - Tsumeb, Namibia 

 Calcite - Santa Eulalia, Chihuahua, Mexico

Left - Calcite - Charcas, San Luis Potosi, Mexico

Right - Calcite - Baranca de Cobre, Chihuahua, Mexico

 Calcite - Zacatecas, Mexico

Calcite - Nicolai Mine, Dal'negorsk, Primorskiy Kray, Russia

 Calcite with Sphalerite - Joplin, Missouri

Calcite - Guanajuato, Mexico

 Calcite - Egremont, Cumbria, England

 Calcite - Andreasberg, Niedersachsen, Germany

 Calcite - Cumbria, England

 Calcite - Cumbria, England

Calcite - Santa Eulalia, Chihuahua, Mexico

 Calcite - Tsumeb, Namibia

 Calcite - Frizington, Cumbria, England

 Calcite - Shullsburg, Wisconsin

Calcite - Keeweenaw Peninsula, Michigan

 Calcite - Brushy Creek Mine, Revnold County, Missouri

 Calcite - Joplin, Missouri

 Calcite - Joplin, Missouri

 Calcite - Taewha Mine, Chung Chong Buk Do, South Korea

 Calcite - Weardale, Durham, England

 Calcite with Fluorite - Weardale, Durham, England

 Calcite - Cumbria, England

 Calcite - York County, Pennsylvania

Calcite - Romania