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Mineral

Cesiokenopyrochlore

cesiokenopyrochlore

Formula
☐ Nb2(O,OH)6Cs1-x
Polished section of the three very rare tantalum minerals: cesplumtantite, lithiotantite and calciotantite, in an specimen that was analyzed by the former owner of the specimen (the Vandenbroucke Museum), associated to cassiterite, after the label. From: Manono-Kitotolo Mine, Tanganyika, DR Congo. Type locality for the first of them, cesplumtantite, that it is also a cesium mineral. Cesium minerals are extremely rare in Nature. Ex Vandenbroucke Museum collection from Waregem, Belgium Mineral

Cesplumtantite

cesplumtantite

Formula
(Cs,Na)2(Pb,Sb³⁺)3Ta8O24
Hemimorphite with Cesàrolite Locality : Germs sur Oussouet, Lourdes, Hautes-Pyrénées, Midi-Pyrénées, France Size : view 1.5cm Mineral

Cesàrolite

cesàrolite

Mohs
4.5
Cetineite Locality: Le Cetine di Cotorniano Mine (Le Cetine Mine; Cetine Mine; Rosia), Chiusdino, Siena Province, Tuscany, Italy Picture width 0.8 mm. Collection and photograph Christian Rewitzer Mineral

Cetineite

cetineite

Formula
NaK5Sb14S6O18·6H2O
Mohs
3.5
Chabazite-Ca Locality : Bloomington, Nova Scotia, Canada Size : 96x55x31 mm Mineral

Chabazite-Ca

chabazite-Ca

Formula
Ca2[Al4Si8O24]·13H2O
Agregados incoloros de cristales tabulares de chabazita-K (RM3153), junto con agregados globulares más blancos de phillipsita-K (RM3154). Provenientes del volcán de la Crosa de Sant Dalmai (Girona, Catalunya). Mineral

Chabazite-K

chabazite-K

Formula
(K2NaCa0.5)[Al4Si8O24]·11H2O
Mineral

Chabazite-Mg

chabazite-Mg

Formula
(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24]·10H2O
Herschelite (Chabazite-Na) and Phillipsite Locality : Rupe di Aci Castello, Aci Castello, Etna Volcanic Complex, Catania Province, Sicily, Italy. Deposit topotype. Size : View 21mm Mineral

Chabazite-Na

chabazite-Na

Formula
(Na3K)[Al4Si8O24]·11H2O
A very rare zeolite, bought in 2015 at the Liège mineral show from zeolite specialist Zelimir Gabelica; ex Christian Rewitzer collection ex Dr. Hartel collection. Collection and photo Erik Vercammen. From: Seidozeritovyi pegmatite #1, Suoluaiv Mt, Lovozersky District, Murmansk Oblast, Russia. Mineral

Chabazite-Sr

chabazite-Sr

Formula
(Sr,Ca)2[Al4Si8O24]·11H2O
Black, stellar aggregates of chabournéite on dolomite. Field of view 1.2 mm. From Lengenbach quarry. Mineral

Chabournéite

chabournéite

Formula
Tl4Pb2(Sb,As)20S34
Colour
black
Mineral

Chadwickite

chadwickite

Formula
(UO2)HAsO3
Mineral

Chaidamuite

chaidamuite

Formula
ZnFe³⁺(SO4)2(OH)·4H2O
Streak color of Chalcanthite: White Mineral

Chalcanthite

chalcanthite

Formula
CuSO4·5H2O
Mohs
2.5
Chalcoalumite Locality: Grand View Mine (Last Chance Mine; No. 1 Pat claim 3591; No. 5 Pat claim 3592a; No. 4 Pat claim 3592a; Canyon Copper Mine; Grand Canyon Mine), Cape Royal, Horseshoe Mesa, Grand Canyon National Park, Grandview District, Coconino County, Arizona, USA (Locality at mindat.org) Size: 2.7 x 2.2 x 1.4 cm. An EXCELLENT and SHOWY thumbnail of bright, botryoidal, powder-blue chalcoalumite richly covering contrasting gossan matrix on this fine piece from the famous Grandview Mine of Arizona, which is actually in the Grand Canyon National Park and you cannot collect from today. Chalcoalumite is a RARE copper sulfate and this is a good one from the Carl Davis Collection. Mineral

Chalcoalumite

chalcoalumite

Formula
CuAl4(SO4)(OH)12 * 3H2O
Calcite, Chalcocite Locality: Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA (Locality at mindat.org) Size: miniature, 3.9 x 3.5 x 3.0 cm Chalcocite on Calcite Extremely sharp chalcocites to 1 cm perched o ncntrasting calcite matrix make this a very special, unique miniature for the famous locality, mined actively during the Civil War era. Such specimens are few and far between now, and this is a very choice piece, aesthetically. Mineral

Chalcocite

chalcocite

Formula
Cu2S
Mohs
2.75
Many whitish crystal aggregates of the rare Cu mineral chalcocyanite from the type locality in Mount Vesuvius, Italy in a capsule. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Chalcocyanite

chalcocyanite

Formula
CuSO4
Mohs
3.5
Chalcomenite Locality: El Dragón mine, Antonio Quijarro Province, Potosí Department, Bolivia (Locality at mindat.org) Picture width 4 mm. Collection and photograph Christian Rewitzer Mineral

Chalcomenite

chalcomenite

Formula
CuSe⁴⁺O3·2H2O
Chalconatronite Locality: Bastenberg Mine, Ramsbeck, Meschede, Sauerland, North Rhine-Westphalia, Germany (Locality at mindat.org) Light blue transparent crystals of Chalconatronite. Collected in 1986. Field of view 4 mm. Specimen and photo Leon Hupperichs. Mineral

Chalconatronite

chalconatronite

Formula
Na2Cu(CO3)2 * 3H2O
Several clusters of Chalcophanite plates (image width: 4 mm) Locality: Mohawk Mine (Clark Station Mine; Pactolus Mine; Wilshire prospect), Mohawk Hill, Pactolus, Clark Mountain District, Clark Mts (Clark Mountain Range), San Bernardino County, California, USA Mineral

Chalcophanite

chalcophanite

Formula
ZnMn⁴⁺3O7·3H2O
Mohs
2.5
Chalcophyllite Locality: Piesky, Špania Dolina (Urvölgy; Herrengrund), Špania Dolina ore belt, Starohorské Mts, Banská Bystrica Region, Slovakia Picture width 1 mm. Collection and photograph Christian Rewitzer Mineral

Chalcophyllite

chalcophyllite

Formula
Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O
Mohs
2
Crystals of chalcopyrite, druse of 9,5 cm. From Dal'negorsk, Russia. Mineral

Chalcopyrite

chalcopyrite

Formula
CuFeS2
Mohs
3.5
Chalcosiderite Locality: Cornwall, England, UK (Locality at mindat.org) Size: 6.8 x 6.1 x 4.8 cm his is a beautiful chalcosiderite specimen, with an intense sparkle and glistening surface, as the thousands of small crystals drape a 3-dimensional matrix plate. The heyday of the mining here was in the mid to late 1800s. From the collection of E.R. Chadbourn, (1855-1920s). See Min Record archives here: http://www.minrec.org/labels.asp?colid=1289. Mineral

Chalcosiderite

chalcosiderite

Formula
CuFe³⁺6(PO4)4(OH)8·4H2O
Chalcostibite, Siderite Locality: St Pons, Val d'Ubaye, Barcelonette Mts, France Size: thumbnail, 2.6 x 1.7 x 1 cm Chalcostibite on Siderite A superb thumbnail of this rare species, from THE major find in the mid-1980s at this classic locality. The main crystal, perched nicely on matrix, is 1 cm 2.6 x 1.7 x 1 cm Mineral

Chalcostibite

chalcostibite

Formula
CuSbS2
Black microcrystals of the extremely rare thallium mineral chalcothallite from the type (Ilímaussaq, Narsaq, Kujalleq, Greenland) and only one of the few known localities, all of them in Greenland. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Chalcothallite

chalcothallite

Formula
Tl2(Cu,Fe)6SbS4