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Siderite after Calcite
New
Specimen: #102409
Dimensions: 6 × 4.5 × 3.5 cm
Locality: Turt Mine, Turt, Satu Mare County, Romania
Manganocalcite (Highly Fluorescent)
New
Specimen: #924049
Dimensions: 8 × 3.8 × 3.8 cm
Locality: Casapalca Mine, Casapalca, Huarochiri Province, Lima, Peru
Fluorite and Calcite
New
Specimen: #924174
Dimensions: 5 × 4.3 × 3.5 cm
Locality: Minerva Mine, Cave-in-Rock District, Hardin County, Illinois
Calcite over Fluorite
New
Specimen: #923168
Dimensions: 6.2 × 5 × 4.5 cm
Locality: Yaogangxian Mine, Chenzhou Prefecture, Hunan Province, China
Calcite on Dolomite
New
Specimen: #923063A
Dimensions: 5.5 × 4 × 3.6 cm
Locality: Corydon Crushed Stone Quarry, 2 mi. NW of Corydon, Harrison Co., Illinois
Calcite (Fluorescent)
New
Specimen: #913017
Dimensions: 5.5 × 3.5 × 3.5 cm
Locality: San Sebastian Mine, Charcas, San Luis Potosi, Mexico
Calcite
New
Specimen: #RCL01047
Dimensions: 6.5 × 3.5 × 3 cm
Locality: Rosilcare Level Cross-Cut Orebody, Minerva #1 Mine, Ozark-Mahoning Company, Cave-in-Rock District, S. Illinois
Calcite
New
Specimen: #224100
Dimensions: 4 × 4 × 3 cm
Locality: Irai, Rio Grande do Sul, Brazil
Calcite
New
Specimen: #923054
Dimensions: 4.3 × 3 × 2.8 cm
Locality: Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Calcite
Specimen: #924119
Dimensions: 10 × 7 × 2.5 cm
Locality: Concepcion del Oro, Zacatecas, Mexico
Green Calcite
Specimen: #924135
Dimensions: 3.5 × 2 × 5.5 cm
Locality: Ahmadnagar Dist., Maharashra State, India
Calcite on Basalt
Specimen: #218086
Dimensions: 2.3 × 2 × 1.5 cm
Locality: Grabiszyce Basalt Quarry, Lesna, Lesna Commune, Luban Dist., Lower Silesia, Poland
Kutnohorite and Manganocalcite
Specimen: #924176
Dimensions: 5.2 × 3.7 × 2.7 cm
Locality: Wessels Mine, KMF, north Cape, South Africa
Calcite with Dolomite, Chalcopyrite
Specimen: #924055
Dimensions: 8 × 6 × 4 cm
Locality: Sweetwater Mine, Ellington, Reynolds County, Missouri
Kolwezite ps. after Cuprite on Cobaltocalcite
Specimen: #224204
Dimensions: 6 × 4.8 × 2.3 cm
Locality: Kakanda Mine, Katanga, De. Republic of Congo
Smithsonite ps. Calcite
Specimen: #924053
Dimensions: 8 × 5 × 3.4 cm
Locality: San Antonio Mine, East Camp, Santa Eulalia, Aquiles Serdan, Chihuahua, Mexico
Calcite var. Manganoan
Specimen: #724007
Dimensions: 10.5 × 9 × 3.5 cm
Locality: Krushev dol Mine, Madan Ore Field, Smolyan Province, Bulgaria
Calcite on Dolomite
Specimen: #923058
Dimensions: 3.7 × 3.6 × 3 cm
Locality: Ben Hogan Quarry (Black Rock Qy.), Lawrence County, Arkansas
Amethyst on Calcite
Specimen: #923061
Dimensions: 8 × 4.8 × 3.5 cm
Locality: Minas Gerais, Brazil
Calcite on Basalt
Specimen: #724010
Dimensions: 8 × 7 × 4 cm
Locality: Campomorto Quarry, Viterbo Province, Lazio, Italy
Apophyllite on Calcite
Specimen: #923098
Dimensions: 12.5 × 4.2 × 3.5 cm
Locality: Aurangabad, India
Calcite
Specimen: #224217
Dimensions: 5.5 × 2 × 2 cm
Locality: Damupada, Mumbai, India
Calcite
Specimen: #923170
Dimensions: 9 × 5 × 4.5 cm
Locality: Santa Eulalia, Chihuahua, Mexico
Adamite with Calcite (Fluorescent)
Specimen: #224191
Dimensions: 10 × 7 × 4 cm
Locality: Ojuela Mine, Mapimi, Durango, Mexico
Geode with Calcite and Quartz
Specimen: #224503
Dimensions: 6 × 5.5 × 3.8 cm
Locality: Malad, Mumbai, India
Calcite (Fluorescent)
Specimen: #923046
Dimensions: 8 × 6.5 × 4.3 cm
Locality: Manashan Mine, Dongpo Ore Field, Suxian Dist., Chenzhou Pref., Hunan Prov. China
Muscovite in Calcite
Specimen: #224091
Dimensions: 4.9 × 3 × 2.8 cm
Locality: Mogok, Burma
Adamite (Fluorescent) with Calcite
Specimen: #120226
Dimensions: 10.3 × 8.3 × 3.5 cm
Locality: Ojuela Mine, Mapimi, Durango, Mexico
Calcite (Fluorescent)
Specimen: #923047
Dimensions: 6.5 × 5.5 × 4 cm
Locality: DalNegorsk, DalNegorsk Urban District, Primorskiy Krai, Russia
Calcite
Specimen: #120505
Dimensions: 4.8 × 4 × 4 cm
Locality: Sokolovskoe Iron Mine, Rudny, Kostanay Region, Kazakhstan
Dogtooth Calcite
Specimen: #223099
Dimensions: 13.5 × 7 × 3.5 cm
Locality: Santa Eulalia, Chihuahua, Mexico
Manganocalcite with Fluorite and Quartz (Fluorescent)
Specimen: #919036
Dimensions: 6.5 × 4 × 4 cm
Locality: Vtoroy Soviestskiy Mine, DalNegorsk, Primorskiy Kray, Far East Russia
Arsenopyrite with Calcite
Specimen: #915090
Dimensions: 7 × 5.5 × 2.3 cm
Locality: Trepca Complex, Trepca Valley, Kosovska, Mitrovica, Kosovo
Manganocalcite (Fluorescent) with Galena and Pyrite
Specimen: #223079
Dimensions: 5.6 × 4.5 × 3 cm
Locality: Gibraltar Mine, Naica, Chihuahua, Mun. de Saucillo, Mexico
Calcite
Specimen: #923103
Dimensions: 17 × 11 × 7 cm
Locality: Pugh Quarry (Custar Quarry), Weston, Wood County, Ohio
Mimetite and Calcite
Specimen: #221116
Dimensions: 6.5 × 5 × 2.5 cm
Locality: Level 10, El Potosi Mine, Santa Eulalia, Chihuahua, Mexico
Calcite on Quartz
Specimen: #224215
Dimensions: 6.5 × 4.5 × 2.5 cm
Locality: Damupada, Mumbai, India
Leaf-Calcite on Heulandite with Apophyllite
Specimen: #224501
Dimensions: 7.5 × 5 × 3.5 cm
Locality: Mirzapur, Maharashtra, India
Calcite
Specimen: #921060
Dimensions: 5.5 × 3.2 × 2 cm
Locality: Daye Mine, Hubei Province, China
Calcite (var. Manganoan), Fluorescent
Specimen: #217054
Dimensions: 7 × 6.5 × 5 cm
Locality: Second Sovietskiy Mine, DalNegorsk, Primorskiy Krai, Russia
Calcite with Iridescent Pyrite
Specimen: #224500
Dimensions: 7 × 5.5 × 4.5 cm
Locality: Sweetwater Mine, Ellington, Reynolds County, Missouri
Calcite on Quartz
Specimen: #224211
Dimensions: 7 × 6.2 × 3.5 cm
Locality: Damupada, Mumbai, India
Calcite with Hematite
Specimen: #224189
Dimensions: 11 × 7.5 × 3.5 cm
Locality: Santa Eulalia, Chuhuahua, Mun. de Aquiles Serdan, Mexico
Quartz on Calcite
Specimen: #224195
Dimensions: 13 × 8.5 × 7 cm
Locality: Irai, Rio Grande do Sul, Brazil
Calcite (Twin)
Specimen: #224148
Dimensions: 3.2 × 2.3 × 1.3 cm
Locality: Berry Materials Quarry, North Vernon, Indiana
Cobaltocalcite with Malachite
Specimen: #224112
Dimensions: 6 × 6.5 × 3.5 cm
Locality: Mashamba West Mine, Shaba Province, Zaire
Calcite on Fluorite
New
Specimen: #224103
Dimensions: 12 × 7 × 2.5 cm
Locality: Shangbao Mine, Leiyang Co., Hunan Province, China
Mimetite and Calcite
Specimen: #224017
Dimensions: 9 × 6.5 × 3 cm
Locality: Level 8, Potosi Mine, Francisco Portillo, W. Camp, Santa Eulalia Dist., Chihuahua, Mexico
Cobaltocalcite
Specimen: #224075
Dimensions: 8.5 × 7.5 × 2.5 cm
Locality: Bou Azzer, Ouarzazate Province, Morocco
Anhydrite and Calcite
Specimen: #224071
Dimensions: 9.7 × 4.7 × 3.2 cm
Locality: Gibralter Mine, Naica, Chihuahua, Mexico
Calcite (Fluorescent) with Sphalerite
Specimen: #224178
Dimensions: 9 × 5.5 × 4.5 cm
Locality: Naica Mine, Chihuahua, Mexico
Sphalerite on Dolomite with Calcite
Specimen: #224181
Dimensions: 9.5 × 4 × 2 cm
Locality: Elmwood Mine, Carthage, Smith County, Tennessee
Calcite in Mercenaria Shell (Fluorescent)
Specimen: #112001
Dimensions: 10.5 × 7 × 4.5 cm
Locality: Rucks Pit, Okeechobee County, Florida
Calcite in Mercenaria Shell (Fluorescent)
Specimen: #112004
Dimensions: 10 × 6 × 4 cm
Locality: Rucks Pit, Okeechobee County, Florida
Calcite with Hematite
Specimen: #921284
Dimensions: 5 × 4.5 × 3.7 cm
Locality: Tonglushan Mine, Daye Co., Huangshi Prefecture, Hubei Province, China
Calcite with Hematite
Specimen: #921285
Dimensions: 6 × 5 × 3.5 cm
Locality: Tonglushan Mine, Daye Co., Huangshi Prefecture, Hubei Province, China
Calcite
Specimen: #919125
Dimensions: 12 × 8.5 × 4.5 cm
Locality: Santa Eulalia, Mun. de Aquiles Serdan, Chihuahua, Mexico
Calcite var. Manganoan
Specimen: #922032
Dimensions: 6 × 5 × 4.5 cm
Locality: DalNegorsk, Primorskiy Krai, Russia
Calcite
Specimen: #923002
Dimensions: 7.5 × 4.5 × 3.5 cm
Locality: Sylvania, Ohio
Calcite on Dolomite
Specimen: #923040
Dimensions: 9 × 7.5 × 6.5 cm
Locality: Ping Wu, Sichuan, China
Calcite on Fluorite
Specimen: #923041
Dimensions: 9.5 × 7 × 5.5 cm
Locality: Annabel Lee Mine, Harris Creek Sub-District, Hardin County, Illinois
Calcite
Specimen: #923071
Dimensions: 11 × 10 × 4 cm
Locality: Sweetwater Mine, Ellington, Reynolds County, Missouri
Calcite
Specimen: #923107
Dimensions: 7 × 5.5 × 4 cm
Locality: Picher Field, Tri-State District, Oklahoma
Mimetite with Calcite
Specimen: #923071A
Dimensions: 12 × 6.5 × 4.5 cm
Locality: Level 8, Potosi Mine, Francisco Portillo, W. Camp, Santa Eulalia Dist., Chihuahua, Mexico
Sphalerite with Calcite
Specimen: #923137
Dimensions: 7.2 × 4.8 × 3.2 cm
Locality: Elmwood Mine, Carthage, Smith County, Tennessee
Calcite
Specimen: #923013A
Dimensions: 7.5 × 5.5 × 3 cm
Locality: Santa Eulalia, Chihuahua, Meixco
Calcite and Chalcopyrite
Specimen: #222020
Dimensions: 6 × 3.5 × 2.5 cm
Locality: Sweetwater Mine, Ellington, Reynolds County, Missouri
Wulfenite and Calcite
Specimen: #223157
Dimensions: 3.5 × 3 × 1.7 cm
Locality: Defiance Mine, Gleeson, Cochise County, Arizona
Calcite Stalactite
Specimen: #923033
Dimensions: 6.6 × 1.8 × 0.8 cm
Locality: Wenshan Mine, Yunnan Province, China
Fluorite with Calcite
Specimen: #923179
Dimensions: 7 × 6.5 × 3.5 cm
Locality: Yaogangxian Mine, Chenzhou Prefecture, Hunan Province, China
Calcite with Duftite
Specimen: #923016
Dimensions: 7.5 × 7 × 4.5 cm
Locality: Tsumeb Mine, Tsumeb, Namibia
Vanadinite and Calcite
Specimen: #923018
Dimensions: 8 × 5.5 × 3 cm
Locality: San Carlos Mine, Mun. de Manuel Benavidez, Chihuahua, Mexico
Dogtooth Calcite
Specimen: #223174
Dimensions: 13.5 × 9.5 × 5 cm
Locality: Santa Eulalia, Chihuahua, Meixco
Chalcopyrite on Calcite
Specimen: #222077
Dimensions: 12 × 8 × 3 cm
Locality: Sweetwater Mine, Ellington, Reynolds County, Missouri
Calcite and Chalcopyrite with Dolomite
Specimen: #922123
Dimensions: 8 × 5 × 3 cm
Locality: Sweetwater Mine, Reynolds County, Missouri
Calcite
Specimen: #921024
Dimensions: 7 × 7 × 3 cm
Locality: El Potosi Mine, Santa Eulalia, Chihuahua, Mexico
Sphalerite on Calcite
Specimen: #909070
Dimensions: 9 × 5.5 × 4 cm
Locality: Elmwood Mine, Carthage, Smith County, Tennessee
Calcite
Specimen: #918153
Dimensions: 8.5 × 6.5 × 2 cm
Locality: Upper Cretaceous, Elk Creek, South Dakota
Calcite (Fluorescent)
Specimen: #221021
Dimensions: 9.5 × 5 × 3.5 cm
Locality: DalNegorsk, Primorskiy Kray, Russia
Calcite
Specimen: #219083
Dimensions: 13.5 × 10.5 × 4 cm
Locality: Krushev dol Mine, Madan Ore Field, Smolyan Province, Bulgaria
Fluorite with Calcite
Specimen: #223103
Dimensions: 7 × 5.5 × 3.5 cm
Locality: Moscona Mine, Solis, Corvera de Asturias, Asturias, Spain
Dogtooth Calcite
Specimen: #223100
Dimensions: 12 × 8.5 × 5 cm
Locality: Santa Eulalia, Chihuahua, Meixco
Cobaltoan Calcite
Specimen: #905240
Dimensions: 6.5 × 4.2 × 4 cm
Locality: Bou Azzer, Morocco
Vanadinite and Calcite
Specimen: #919137
Dimensions: 5 × 3.5 × 2.5 cm
Locality: San Carlos Mine, Mun. de Manuel Benavidez, Chihuahua, Mexico
Calcite
Specimen: #213142
Dimensions: 5.5 × 4.5 × 4 cm
Locality: Thomasville, Pennsylvania
Calcite
Specimen: #921312
Dimensions: 4.5 × 3 × 3 cm
Locality: Paul Frank Quarry, North Vernon, Jennings County, Indiana
Calcite with Malachite
Specimen: #223095
Dimensions: 8 × 6.5 × 2.5 cm
Locality: Tsumeb Mine, Tsumeb, Namibia
Calcite on Fluorite
Specimen: #223052
Dimensions: 9 × 6.3 × 5.6 cm
Locality: Elmwood Mine, Carthage, Smith County, Tennessee
Calcite and Apophyllite
Specimen: #215140
Dimensions: 4.5 × 3 × 2.7 cm
Locality: Mirzapur, Gangapur District, India
Fluorite and Calcite
Specimen: #221158
Dimensions: 11.3 × 5.8 × 2 cm
Locality: Moscona Mine, Silis, Corvera de Asturias, Asturias, Spain
Calcite
Specimen: #922030
Dimensions: 5.5 × 5.5 × 5 cm
Locality: Berry Materials Quarry, North Vernon, Indiana
Wulfenite and Calcite
Specimen: #222224
Dimensions: 3.2 × 2.7 × 1.8 cm
Locality: Apex Mine, San Carlos, Manuel Benavides Mun., Chihuahua, Mexico
Calcite (Fluorescent) Dolomite
Specimen: #922175
Dimensions: 11.5 × 7 × 4.5 cm
Locality: Droujba Mine, Djurkovo Complex, Laki Mun, Plovdiv Province, Bulgaria
Calcite with Chalcopyrite and Dolomite
Specimen: #922211
Dimensions: 14.5 × 10.5 × 5.7 cm
Locality: Sweetwater Mine, Reynolds County, Missouri
Celestine on Calcite
Specimen: #921168
Dimensions: 5.5 × 3.5 × 3 cm
Locality: Mojina Mine, Mun. de Ahumada, Chihuahua, Mexico
Quartz Cast after Calcite
Specimen: #922129
Dimensions: 12.5 × 9.5 × 3.5 cm
Locality: Djurkovo Mine, Djurkovo Complex, Laki, Laki Mun., Plovdiv Prov., Bulgaria
Calcite and Chalcopyrite with Dolomite
Specimen: #922257
Dimensions: 12.5 × 7 × 2 cm
Locality: Sweetwater Mine, Reynolds County, Missouri
Dolomite with Calcite on Quartz
Specimen: #922252
Dimensions: 10.5 × 9 × 5.5 cm
Locality: Yaogangxian Mine, Chenshou Prefecture, Hunan Province, China
Dolomite with Chalcopyrite and Calcite
Specimen: #922218
Dimensions: 11 × 6 × 3 cm
Locality: Sweetwater Mine, Reynolds County, Missouri
Calcite and Prehnite
Specimen: #922037
Dimensions: 7 × 4 × 4 cm
Locality: O&G Quarry, Woodbury, Litchfield, Connecticut
Wulfenite on Calcite
Specimen: #922033
Dimensions: 8 × 6 × 4 cm
Locality: Ahumada Mine, Los Lamentos, Chihuahua, Mexico
Calcite with Duftite
Specimen: #922121
Dimensions: 7.5 × 6 × 3 cm
Locality: Tsumeb Mine, Tsumeb, Namibia
Calcite
Specimen: #922075
Dimensions: 9 × 6 × 3 cm
Locality: Xiayang Mine, Fujian Province, China
Chalcedony on Calcite
Specimen: #222012
Dimensions: 6.5 × 6.5 × 4 cm
Locality: Jalgoan, india
Siderite and Sphalerite epimorph over Calcite
Specimen: #908124
Dimensions: 7.2 × 5.5 × 3.7 cm
Locality: Aggenys Pb-Zn Mine, Northwest Province, South Africa
Calcite (Fluorescent) with Sphalerite and Chalcopyrite
Specimen: #222116
Dimensions: 5.5 × 5.5 × 3 cm
Locality: Huanzala Mine, Huallanca Dist., Bolognesi Province, Ancash, Peru
Calcite
Specimen: #921276
Dimensions: 8.8 × 6 × 5.5 cm
Locality: Santa Eulalia, Chihuahua, Mexico
Calcite
Specimen: #921273
Dimensions: 12 × 11 × 6.5 cm
Locality: Tonglushan Mine, Daye Co., Huangshi Prefecture, Hubei Province, China
Rhodochrosite with Calcite
Specimen: #322506
Dimensions: 8.2 × 6.6 × 4.8 cm
Locality: Trepca, Trepca Valley, Kosovska Mitrovica, Kosovo
Calcite (Fluorescent)
Specimen: #322613
Dimensions: 8.2 × 7.3 × 6 cm
Locality: Dal?negorsk, Primorskiy Kray, Russia
Manganoan Calcite twinned crystals
Specimen: #322523
Dimensions: 8.1 × 6.1 × 5.5 cm
Locality: Huanggang Mine, Hexigten, Chifeng Prefecture, Inner Mongolia, China
Cobaltoan Calcite
Specimen: #322568
Dimensions: 7.6 × 5.2 × 3 cm
Locality: Agoudal, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco
Sphalerite with Calcite
Specimen: #322628
Dimensions: 7.5 × 4.5 × 4.3 cm
Locality: Santa Eulalia District, Chihuahua, Mexico
Pyrite after Pyrrhotite with Calcite
Specimen: #322649
Dimensions: 7.5 × 5.5 × 3 cm
Locality: Santa Eulalia District, Mun. de Aquiles Serdan, Chihuahua, Mexico
Calcite (Fluoresent)
Specimen: #322561
Dimensions: 6 × 6 × 5.5 cm
Locality: Irai, Alto Uruguai Region, Rio Grande do Sul, Brazil
Carrollite on Calcite
Specimen: #322639
Dimensions: 3.5 × 3.5 × 2.5 cm
Locality: Kamoya South II Mine, Kamoya, near Kambove, Katanga, Democratic Republic of the Congo
Marcasite on Calcite
Specimen: #322602
Dimensions: 12.5 × 7.5 × 3 cm
Locality: Linwood Mine, Buffalo, Scott County, Iowa
Calcite on Calcite
Specimen: #322550
Dimensions: 11 × 6.9 × 5.4 cm
Locality: Santa Eulalia District, Chihuahua, Mexico
Calcite and Pyrite
Specimen: #921268
Dimensions: 8.5 × 7.5 × 5.5 cm
Locality: Sweetwater Mine, Viburnum Trend, Reynolds County, Missouri
Calcite
Specimen: #921263
Dimensions: 11 × 8 × 3 cm
Locality: Santa Eulalia, Chihuahua, Mexico
Calcite
Specimen: #921216
Dimensions: 6 × 4 × 2.8 cm
Locality: Tonglushan Mine, Daye County, Huangshi Prefecture, Hubei Province, China
Fluorite on Calcite
Specimen: #921097
Dimensions: 5.8 × 5.8 × 2.3 cm
Locality: Santa Eulalia, Chihuahua, Mexico
Calcite with Chalcopyrite
Specimen: #921157
Dimensions: 8.3 × 7 × 3.5 cm
Locality: Brushy Creek Mine, Viburnum Trend, Reynolds County, Missouri
Calcite (twinned) with Palygorskite and Romanechite
Specimen: #921230
Dimensions: 12 × 9.5 × 4.5 cm
Locality: Palmarejo Mine, Chihuahua, Mexico
Cobaltian Calcite
Specimen: #921238
Dimensions: 8.5 × 7 × 4 cm
Locality: Bou Azzer, Morocco
Quartz on Calcite
Specimen: #921109
Dimensions: 4 × 3 × 1.5 cm
Locality: Charcas, San Luis Potosi, Mexico
Calcite with Descloizite
Specimen: #921106
Dimensions: 12 × 6.5 × 3 cm
Locality: Santa Eulalia, Chihuahua, Mexico
Calcite on Calcite
Specimen: #921107
Dimensions: 10 × 10 × 4 cm
Locality: Naica, Chihuahua, Mexico
Wulfenite and Calcite
Specimen: #921119
Dimensions: 5.5 × 3.5 × 2.5 cm
Locality: Villa Ahumada, Los Lamentos, Chihuahua, Mexico
Mimetite and Calcite
Specimen: #221048
Dimensions: 6.3 × 4 × 3 cm
Locality: Level 10, El Potosi Mine, Santa Eulalia, Chihuahua, Mexico
Wulfenite with Calcite
Specimen: #221130
Dimensions: 5 × 3.5 × 2.5 cm
Locality: Mapimi, Durango, Mexico
Mimetite with Calcite on Limonite
Specimen: #221051
Dimensions: 5.3 × 4.5 × 2.5 cm
Locality: Level 10, El Potosi Mine, Santa Eulalia, Chihuahua, Mexico
Dolomite and Calcite
Specimen: #916117
Dimensions: 10.5 × 9.5 × 5.5 cm
Locality: Tsumeb Mine, Tsumeb, Namibia
Calcite
Specimen: #221106
Dimensions: 6.3 × 4 × 3 cm
Locality: Ahmednagar, Mahrashtra, India
Quartz, Calcite, Chalcopyrite, Dolomite
Specimen: #211300
Dimensions: 16 × 11 × 4 cm
Locality: Leiping Mine, Jiangxi Province, China
Calcite on Fluorite
Specimen: #220042
Dimensions: 4.2 × 3 × 1.5 cm
Locality: Moscona Mine, Solis, Corver de Asturias, Villabona Mining Area, Asturias, Spain
Dioptase with Calcite and Mimetite
Specimen: #122826
Dimensions: 6.5 × 6 × 1 cm
Locality: Ntola Mine, Mindouli, Kimbedi, Pool Department, Democratic Republic of Congo
Calcite
Specimen: #122836
Dimensions: 10.5 × 6 × 4.5 cm
Locality: York, Pennsylvania
Cobaltoan Calcite
Specimen: #905143
Dimensions: 11 × 7 × 4 cm
Locality: Bou Azzer, Morocco
Calcite with Hematite, Dolomite, and Pyrite
Specimen: #215084
Dimensions: 11 × 6 × 4.5 cm
Locality: Hunan Province, China
Calcite replacing Busycon (Whelk) shell
Specimen: #104800
Dimensions: 10 × 8 × 4 cm
Locality: Anastasia Formation, Pleistocene Epoch, St. Lucie County, Florida
