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Minerals

6323 results

Clinoclase (FOV: 1.8 mm) Locality: Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK Mineral

Clinoclase

clinoclase

Formula
Cu3AsO4(OH)3
Mineral

Clinoenstatite

clinoenstatite

Formula
MgSiO3
Mineral

Clinofergusonite-(Ce)

clinofergusonite-(Ce)

Formula
CeNbO4
Mineral

Clinofergusonite-(Nd)

clinofergusonite-(Nd)

Formula
NdNbO4
Mineral

Clinofergusonite-(Y)

clinofergusonite-(Y)

Formula
YNbO4
Clinoferrosilite Field of view: 0.4 mm high crystal Locality: Sant'Antioco, South Sardinia Province, Sardinia, Italy Mineral

Clinoferrosilite

clinoferrosilite

Formula
Fe²⁺SiO3
clinohedrite coating hardystonite, with franklinite surrounded by willemite reaction rims. Orange fluorescence under 9 Watt / 12 Volt short wave (254 nm) UV light. Franklin, New Jersey Mineral

Clinohedrite

clinohedrite

Formula
CaZn(SiO4) * H2O
Clinohumite Locality: Gem spinel deposit, Kukh-i-Lal (Kukhilal; Kuhi-lal), Pyandzh River Valley, Pamir Mts, Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni), Tajikistan (Locality at mindat.org) Size: thumbnail, 1.0 x 0.9 x 0.6 cm (specimen) and 5 x 5 Clinohumite cut and rough set Stunning crystal, of total gem quality, and a relatively large cut stone cut from this unusual and fiery orange clinohumite that is widely considered to be the worlds best of species. This crystal actually is pretty good on its own complete on top termination and just a nick in the bottom-left. It is very gemmy and bright, just like the matching gem!. Mineral

Clinohumite

clinohumite

Formula
Mg9(SiO4)4F2
Mohs
6
An outstanding and complex specimen formed by an intimate mixture of clinojimthompsonite, jimthompsonite, chesterite and anthophyllite, the first three from the type locality in Carlton Quarry (Carlton Quarry, Chester, Windsor County, Vermont, United States of America). As described in Mindat : "Jimthompsonite, clinojimthompsonite, chesterite, an unnamed monoclinic analog of chesterite, and anthophyllite occur with fibrous talc, cummingtonite, actinolite, and magnetite in a metamorphic retrograde assemblage in which anthophyllite is being replaced by jimthompsonite, clinojimthompsonite, chesterite and its analog. Visually indistinguishable, transparent, colorless to very light pink brown, they occur as parallel intergrowths along anthophyllite (010) as fibrous aggregates and radiating sprays of prismatic crystals. The monoclinic forms (clinojimthompsonite, chesterite analog) occur as thin lamellae. A combination of optical and chemical analysis and electron microscopy is needed to tell all of these apart, although XRD or even cleavage angles can be used if observable" Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Clinojimthompsonite

clinojimthompsonite

Formula
(Mg,Fe)5Si6O16(OH)2
Outstanding colorless platy crystals of the extremely rare mineral clinokurchatovite from the type locality (Sayak, Karaganda Oblast, Kazakhstan) and only one of the two known localities worldwide. Holotype material. Ex.Dr.Hartel collection. Mineral

Clinokurchatovite

clinokurchatovite

Formula
Ca(Mg,Fe²⁺,Mn²⁺)[B2O5]
Mineral

Clinometaborite

clinometaborite

Formula
HBO2
Clinophosinaite Locality: Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia (Locality at mindat.org) Pink/light violet Clinophosinaite. Field of view; 12 mm. Depth of field is achieved with CombineZM. Mineral

Clinophosinaite

clinophosinaite

Formula
Na12(Ca,Sr)4(Si4O12)(PO4)4
Clinoptilolite-Ca Locality: Cape Lookout, Tillamook Co., Oregon, USA Original description:The aggregate at top spans ~1¼ mm. Thanks to Ralph Thomas. MOB coll. Mineral

Clinoptilolite-Ca

clinoptilolite-Ca

Formula
Ca3(Si30Al6)O72*20H2O
Clinoptilolite-K (FOV 1.5 x 1.3 mm) Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada Original description: From the only confirmed find of clinoptilolite-K at MSH. Thanks to Ralph Thomas and Dick Tillett (the original finder) MOB coll. Mineral

Clinoptilolite-K

clinoptilolite-K

Formula
K6(Si30Al6)O72*20H2O
Clinoptilolite-Na Locality: Rodalquilar, Níjar, Almería, Andalusia, Spain Picture width 2.5 mm. Collection and photograph Christian Rewitzer Mineral

Clinoptilolite-Na

clinoptilolite-Na

Formula
Na6(Si30Al6)O72*20H2O
Clinosafflorite Locality: Schlema, Schlema-Hartenstein District, Erzgebirge, Saxony, Germany (Locality at mindat.org) Size: 5.5 x 4.6 x 3.6 cm. This is a solid, hefty specimen composed of large and sharp bismuth crystals to over 1 cm, completely covered by a druse of secondary bismuth. On them, are perched silvery-bright crystals of Clinosafflorite. Mineral

Clinosafflorite

clinosafflorite

Formula
CoAs2
Mineral

Clinosulphur

clinosulphur

Formula
S
Mineral

Clinotobermorite

clinotobermorite

Formula
Ca4Si6O17(H2O)2·(Ca·3H2O)
Clinotyrolite Locality: Lovelock Mine, Bolivia, Cottonwood Canyon, Table Mountain District, Churchill County, Nevada, USA (Locality at mindat.org) Field of view 4 mm. Specimen and photo Leon Hupperichs. Mineral

Clinotyrolite

clinotyrolite
Yellow crystals of the very rare sulphate mineral clinoungemachite from the type locality in Chuquicamata, Chile. Probable monoclinic dimorph of ungemachite. Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium. Mineral

Clinoungemachite

clinoungemachite

Formula
(Na, K, Fe, SO4)
Clinozoisite, Amphibole Group - Locality: Mt Belvidere Quarries (Vermont Asbestos Group mine; VAG mine; Ruberoid Asbestos mine; Eden Mills quarries), Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA - Tallest crystal about 1 cm. Found May 1994. At the time this was collected the fibrous stuff was being called palygorskite. But according to Van King palygorskite has not yet been ID from here. Possibly an amphibole - but not a true asbestos species Mineral

Clinozoisite

clinozoisite

Formula
Ca2Al3(Si2O7)(SiO4)O(OH)
Clintonite, Spinel Locality: Amity, Town of Warwick, Orange County, New York, USA (Locality at mindat.org) Size: 9.3 x 5.7 x 3.8 cm. Clintonite is a rare Mica Group mineral species. This fine, old-time specimen is from the New York Type Locality of Amity and features a large, well-placed, pearlescent, brown plate of clintonite set in orthoclase-rich matrix. A bonus on this classic specimen are the two broken, octahedral spinel crystals embedded in the side of the matrix. Ex. Mullane Collection. Mineral

Clintonite

clintonite

Formula
CaAlMg2(SiAl3)O10(OH)2
(a) Reflected light image of clogauite lamella on which all analytical data was collected. Mineral

Clogauite

clogauite

Formula
PbBi4Te4S3
Cloncurryite Locality: Great Australia Mine, Cloncurry, Cloncurry District, Mt Isa - Cloncurry area, Queensland, Australia Cloncurryite (IMA2005-060) from the Type Locality. Field of view 3 mm. I acquired this specimen from Volker Hoppe, the discoverer of this new and very rare mineral. Mineral

Cloncurryite

cloncurryite

Formula
Cu0.5(VO)0.5Al2(PO4)2F2·5H2O