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Mineralati

Minerals

6323 results

Mineral

Debattistiite

debattistiite

Formula
Ag9Hg0.5As6S12Te2
Mineral

Decagonite

decagonite

Formula
Al71Ni24Fe5
Near perfect formation of (blue) Decrespignyite-(Y) crystals creating botryoidal type formations with a small amount of (grey) Kamphaugite-(Y) Mineral

Decrespignyite-(Y)

decrespignyite-(Y)

Formula
Y4Cu(CO3)4Cl(OH)5·2H2O
A mass of radiating black crystals of deerite on and on matrix. JSS specimen and photo. From: Laytonville Quarry, Laytonville, Coastal Range, Mendocino Co., California, USA. Mineral

Deerite

deerite

Formula
(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Defernite from Güneyce-Ikizdere, Rize Province, Turkey. Mineral

Defernite

defernite

Formula
Ca6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x<0.5)
Outstanding metallic big crystal (about 2-3 mm) of the new mineral of the sartorite group, dekatriasartorite (IMA 2017-071) from the type and only known locality worldwide, the Lengenbach quarry. Analyzed specimen by SEM-EDS, analysis performed by Dr.Topa of the Natural History Museum Wien. Dekatriasartorite is the latest member of the sartorite group, just approved by the IMA at the end of 2017. Almost all six members of sartorite group are very rare (enneasartorite, heptasartorite, incomsartorite, hendekasartorite, sartorite, dekatriasartorite) but probably dekatriasartorite is the rarest of them. Mineral

Dekatriasartorite

dekatriasartorite

Formula
TlPb58As97S204
Needle like sprays of delafossite (SEM-EDS). From: San Miguel Mine, Vall de Ribes mining district, Ribes de Freser, Girona, Catalonia, Spain. Mineral

Delafossite

delafossite

Formula
Cu¹⁺Fe³⁺O2
Delchiaroite, light-yellow acicular crystals, with light-blue lavendulan and green zincolivenite on calcite. La Piana quarry, Colonnata basin, Carrara, Massa-Carrara Province, Tuscany, Italy. Holotype specimen, Natural History Museum of the University of Pisa. Catalogue no. 20083. Photo by Cristian Biagioni. Mineral

Delchiaroite

delchiaroite

Formula
Cu3I(CH3S)2
Outstanding grey crystals of the rare mineral delhayelite from a Russian locality (Rasvumtchorr, Khibiny, Kola, Russian Federation). Mineral

Delhayelite

delhayelite

Formula
K7Na3Ca5Al2Si14O38F4Cl2
Mineral

Delhuyarite-(Ce)

delhuyarite-(Ce)

Formula
Ce4Mg(Fe³⁺2W)☐(Si2O7)2O6(OH)2
Mineral

Deliensite

deliensite

Formula
Fe²⁺(UO2)2(SO4)2(OH)2·7H2O
Delindeite Locality: Yukspor Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia Original description: About 1.5 mm long prismatic delindeite crystal in a vug in a border zone of nepheline sienitic pegmatite. Collected by A.P. Khomyakov before 1998. Pavel M. Kartashov collection and photo. Mineral

Delindeite

delindeite

Formula
Ba2Ti2(Na2☐)Ti(Si2O7)2(OH)2(H2O)2O2
Outstanding sharp green crystals of the mineral dellagiustaite (IMA 2017-101) approved in 2018, from the type locality in Argentina (Sierra de Comechingones, San Luis Province, Argentina) and only one of the two known localities worldwide. Dellagiustaite is a vanadium mineral. It is said that this material contains native vanadium. Associated minerals are grossite and hibonite. Mineral

Dellagiustaite

dellagiustaite

Formula
V²⁺Al2O4
Mineral

Dellaite

dellaite

Formula
Ca6(Si2O7)(SiO4)(OH)2
Greenish and yellowish crystals of the rare REE mineral deloneite from the type and only known locality worldwide in Kola peninsula, Russia (Koashva Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation). Ex. Erich Laskowski collection (USA). Mineral

Deloneite

deloneite

Formula
(Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5
Mineral

Deloryite

deloryite

Formula
Cu4(UO2)Mo2O8(OH)6
Mineral

Delrioite

delrioite

Formula
Sr(V⁵⁺O3)2·4H2O
Mineral

Deltalumite

deltalumite

Formula
(Al0.67☐0.33)Al2O4
Mineral

Deltanitrogen

deltanitrogen

Formula
N
Compact nodule of this rare iron phosphate. Brilliant, with visible conchoid fracture. With yellow earthy jarosite-limonite. Bruguers area is well know for rare phosphate species. Collected: 03/2017 (Cal Gairal street outcrops, Bruguers, Gavà, Baix Llobregat, Barcelona, Catalonia). Outcrop in a construction works, nowadays desapeared under building. Mineral

Delvauxite

delvauxite

Formula
CaFe³⁺4(PO4)2(OH)8·4-5H2O (?)
Mineral

Demagistrisite

demagistrisite

Formula
BaCa2Mn³⁺4(Si3O10)(Si2O7)(OH)4·3H2O
Mineral

Demartinite

demartinite

Formula
K2SiF6
Mohs
3
Demesmaekerite, Uranophane - alpha Locality: Musonoi Mine, Kolwezi, Western area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) (Locality at mindat.org) Size: miniature, 4.3 x 3.9 x 2.9 cm Demesmaekerite with Uranophane (??) Superb, unusually large Demesmaekerite crystals with micro-crystalline yellow mineral in association. (6 mm crystal). At a guess, the micro-sized acicular yellow crystals are almost certainly Uranophane but this has not been analyzed to prove it and they may be somethign more rare Mineral

Demesmaekerite

demesmaekerite

Formula
Pb2Cu5(UO2)2(Se⁴⁺O3)6(OH)6·2H2O
Exceptional and very rich sample of the extremely rare mineral (IMA 2007-022) demicheleite-(Br) in well formed metallic deep red crystals. The mineral is found only in this locality worldwide ( La Fossa Crater, Vulcano Island, Messina Province, Sicily, Italy) and it has an unusual chemistry, as it is a bismuth sulphide bromide (BiSBr). Analyzed by SEM/EDS. Mineral

Demicheleite-(Br)

demicheleite-(Br)

Formula
BiSBr