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Minerals

6323 results

Mineral

Jeankempite

jeankempite

Formula
Ca5(AsO4)2(AsO3OH)2(H2O)7
Mineral

Jedwabite

jedwabite

Formula
Fe7Ta3
Mohs
6.5
Mineral

Jeffbenite

jeffbenite

Formula
Mg3Al2Si3O12
Mineral

Jeffreyite

jeffreyite

Formula
(Ca,Na)2(Be,Al)(Si2O7,HSi2O7)
White acicular crystals of jennite associated to also white ettringite, from Bellerberg, Ettringen, Eifel Mountains, Rhineland-Palatinate, Germany. Mineral

Jennite

jennite

Formula
Ca9Si6O16(OH)10·6H2O
Mohs
3.5
Outstanding perfect emerald green crystal of the extremely rare tellurite mineral jensenite from one of the only three known localities worldwide (Centennial Eureka Mine, Eureka, Tintic, Juab County, Utah, United States of America). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Jensenite

jensenite

Formula
Cu²⁺3Te⁶⁺O6(H2O)2
Colour
emerald
Mineral

Jentschite

jentschite

Formula
TlPbAs2SbS6
Black crystals of the rare mineral jeppeite from the TL in Australia (Walgidee Hills, Noonkanbah Station, Derby-West Kimberley Shire, Western Australia, Australia). Ex. Erich Laskowski collection (USA). Mineral

Jeppeite

jeppeite
Jeremejevite crystals hidden behind a Sanidine tabular, but much to blue to overlook (image width: 1,5mm) - Locality: Wannenköpfe, Ochtendung, Eifel region, Germany Mineral

Jeremejevite

jeremejevite

Formula
Al6(BO3)5F3
Pink crystal aggregates of the extremely rare mineral jerrygibbsite from the type and only one of three known localities known worldwide (Franklin Mine, New Jersey, United States of America). Associated minerals are orange zincite and black franklinite. Jerrygibbsite is a manganese silicate. Mineral

Jerrygibbsite

jerrygibbsite

Formula
Mn²⁺9(SiO4)4(OH)2
Jervisite, Cascandite Locality: Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy Original description: jervisite - some white tufts on cascandite - area 1 mm. Self collected november 2007. Sergio varvello photo and collection Mineral

Jervisite

jervisite

Formula
NaScSi2O6
Mohs
6
Mineral

Ježekite

ježekite

Formula
Na8[(UO2)(CO3)3](SO4)2·3H2O
Mineral

Jianmuite

jianmuite

Formula
ZrTi⁴⁺Ti³⁺5Al3O16
Jianhuiite. Group of feathery crystals in a basalt cavity. Punta del Águila, Yaiza (Lanzarote), Canary Islands, Spain. F.v. 5 mm. Miguel Calvo coll. and photo. Mineral

Jianshuiite

jianshuiite

Formula
MgMn⁴⁺3O7(H2O)3
Jimboite exhibited at the Mining Museum of Akita University Mineral

Jimboite

jimboite

Formula
Mn²⁺3[BO3]2
Mohs
5.5
Mineral

Jimkrieghite

jimkrieghite

Formula
Ca(C2H3O3)2
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

Jimthompsonite

jimthompsonite

Formula
Mg5Si6O16(OH)2
Fig. 6. (a) Bright-field and (b) high-angle annular dark-field scanning-transmission electron microscope (HAADF-STEM) images of foil #6034 showing a portion of a lamellar intergrowth of osbornite–khamrabaevite, Ti(C,N), jingsuiite, TiB2, and wenjiite, Ti10(Si,P,□)7. Al2O3 – corundum hosting the lamellar intergrowth. Wodegongjieite forms pools between corundum and wenjiite, Ti10(Si,P,□)7. The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). Mineral

Jingsuiite

jingsuiite

Formula
TiB2
Mineral

Jingwenite-(Y)

jingwenite-(Y)
Orange-brown crystals of the very rare mineral jianshajingite from the type locality: Luku Mine, Panzhihua, Sichuan Province, China (Peoples Republic). Ex.Dr.Hartel and C.Rewitzer collections. Mineral

Jinshajiangite

jinshajiangite

Formula
BaNa(Fe²⁺)4Ti2(Si2O7)2O2(OH)2F
Mineral

Jinxiuite

jinxiuite

Formula
Ni18Bi2SbAsS16
Dark violet crystal aggregates of joannneumite (IMA 2012-001), from Pabellon de Pica, Chanabaya, Iquique Province, Tarapacá Region, Chile. The mineral is a chemical oddity because is a mixture of two organic compounds (ammine-cianurate) and an inorganic compound (copper). It is the first organometallic mineral in Nature. Associated mineral is pale blue greenish salammoniac, on grandodiorite matrix. Mineral

Joanneumite

joanneumite

Formula
Cu(C3N3O3H2)2(NH3)2
joaquinite-(Ce), benitoite, neptunite, natrolite : Dallas Gem Mine (Benitoite Mine ; Benitoite Gem Mine ; Gem Mine), Dallas Gem Mine area, San Benito River headwaters area, New Idria District, Diablo Range, San Benito Co., California, USA Mineral

Joaquinite-(Ce)

joaquinite-(Ce)

Formula
NaBa2Ce2FeTi2[Si4O12]2O2(OH,F)·H2O
Mineral

Joegoldsteinite

joegoldsteinite

Formula
MnCr2S4