Skip to content
Mineralati

Minerals

6323 results

9.0 x 5.5 x 5.0 cm. A very good specimen exhibiting white botryoidal kaatialaite, a hydrous iron arsenite, in vugs within a gray-black mass of skutterudite. From the silver-rich, uranium-bearing polymetallic vein deposits of the historic Erzgebirge (Ore Mountains) of the Czech Republic. From the Josef Vajdak collection; he assembled a notable collection of Jachymov minerals.From: Svornost Mine, Jáchymov, Jáchymov District, Krušné Hory Mts, Karlovy Vary Region, Bohemia, Czech Republic Mineral

Kaatialaite

kaatialaite

Formula
Fe(H2AsO4)3 * 5H2O
Mineral

Kabalovite

kabalovite
Mineral

Kadyrelite

kadyrelite

Formula
[(Hg¹⁺)2]3OBr3(OH)
Kaersutite, Amphibole Supergroup Field of view: 3 mm Locality: Rothenberg quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany (locality at mindat.org) Mineral

Kaersutite

kaersutite

Formula
NaCa2(Mg3AlTi)(Si6Al2)O22O2
A yellow single crystal of the very rare K-Fe cyanide mineral kafehydrocyanite from the TL in Siberia, Russia (Medvezhii Log, Sayan Mountains, Ol'khovskoye, Eastern Sayan, Sayan Mountains, Tuva Republic, Russian Federation). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kafehydrocyanite

kafehydrocyanite
(a) Hematite segregation in wollastonite–gehlenite hornfels with grey-green esseneite crystals around it; (b) hematite enclave with a significant amount of hibonite, spinel, corundum, and dorrite; (c) hibonite overgrows and replaces kahlenbergite; (d) rare, relatively large kahlenbergite crystals in hematite; (e) kahlenbergite crystal flattened on (001) with epitaxial inclusions of hibonite (orange) and spinel inclusion (red); optical photo in immersion with n=1.63; (f) fragment of flattened kahlenbergite crystal with hexagonal elements of microrelief. Mineral symbols are hibonite (Hib), spinel (Sp), corundum (Crn), calcite (Cal), kahlenbergite (Khl), hematite (Hem), and pseudobrookite (Pbr). Mineral

Kahlenbergite

kahlenbergite

Formula
KAl11O17
Mineral

Kahlerite

kahlerite

Formula
Fe(UO2)2(AsO4)2 * 12H2O
Idiomorphic Kainite - Locality: Brefeld Mine, Tarthun/Staßfurt, Saxony-Anhalt, Germany - crystal size: 3.8 cm Mineral

Kainite

kainite

Formula
KMg(SO4)Cl·3H2O
Kainosite-(Y) Locality: Amphibolite quarry, Urenkopf Mt., Haslach, Black Forest, Baden-Württemberg, Germany (Locality at mindat.org) Size: thumbnail, 0.8 x 0.6 x 0.4 cm Kainosite-(Y) A FACET-QUALITY, transparent, gem Kainosite crystal of a relatively large size for this species, from a classic locale. This crystal is gemmier in person, and really bright in lustre. It is from an old German collection being quietly dispersed. Although small, it is a superb example of the species in unusually fine quality. Mineral

Kainosite-(Y)

kainosite-(Y)

Formula
Ca2Y2(SiO3)4(CO3)·H2O
Mineral

Kainotropite

kainotropite

Formula
Cu4Fe³⁺O2(V2O7)(VO4)
SEM BSE images showing kaitianite (Ktn) with tistarite (Tta), Ti,Al,Zr-oxide (TAZ), MgTi3+2Al4SiO12 phase (MTAS), spinel (Spl), sapphirine (Spr), and Ti-sulfide (Ti-S) in corundum Grain 1125C2. The upper rectangular area in (b) are enlarged in (c). The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Mineral

Kaitianite

kaitianite

Formula
Ti³⁺2Ti4+O5
White crystals of the very rare K-Al borosilicate mineral kalborsite from the TL in Khibiny area in Russia (Khibiny Massif, Murmansk Oblast, Russian Federation) in a dark contrasting matrix. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kalborsite

kalborsite

Formula
K6Al4BSi6O20(OH)4Cl
Mineral

Kalgoorlieite

kalgoorlieite

Formula
As2Te3
White crystals of the rare borate mineral kaliborite from one of the few known localities worldwide: Inder B Deposit, Atyrau, Atyrau Oblysy, Kazakhstan. Mineral

Kaliborite

kaliborite

Formula
HKMg2B12O16(OH)10·4H2O
White to pale tan crystals of the very rare mineral of simple chemistry kalicinite (K bicarbonate) from the famous region of Khibiny (Khibiny Massif, Murmansk Oblast, Russian Federation), associated to bobierrite. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kalicinite

kalicinite

Formula
KHCO3
Mineral

Kalifersite

kalifersite

Formula
(K,Na)5Fe³⁺7Si20O50(OH)6 * 12H2O
Mono- and polymineralic inclusions and globules in Fe-Ni-metal (kamacite), Uakit meteorite (IIAB), BSE images. Symbols: Dbr—daubréelite; Sch—schreibersite; Nph—nickelphosphide; Tn—taenite; Coh—cohenite; Tro—troilite; Cu—native copper; Crl—carlsbergite; Kln—kalininite; Sph—sphalerite; Mgt—magnetite. Mineral

Kalininite

kalininite

Formula
ZnCr2S4
Colour
black
Kalinite Locality: Silver Peak, Silver Peak District, Esmeralda County, Nevada, USA (Locality at mindat.org) Size: 5.1 x 3.1 x 1.1 cm. A beautiful ram’s-horn crystal of this rare, but questionable sulfate. Ex. Martin Zinn Collection. [Note: very similar specimens from Silver Peak have been X-rayed and found to be potassium alum.] Mineral

Kalinite

kalinite

Formula
KAl(SO4)2·11H2O
Mineral

Kaliochalcite

kaliochalcite

Formula
KCu2(SO4)2[(OH)(H2O)]
Mohs
4
Kaliophilite Locality: Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy (Locality at mindat.org) Field of view 5 mm. Specimen and photo Leon Hupperichs. Mineral

Kaliophilite

kaliophilite

Formula
KAlSiO4
Mineral

Kalistrontite

kalistrontite

Formula
K2Sr(SO4)2
Mineral

Kalithallite

kalithallite

Formula
K3Tl³⁺Cl6*2H2O
Outsatnding sharp pale tan prismatic hexagonal crystals of the mineral kalsilite, from: Löhley, Üdersdorf, Eifel, Rhineland-Palatinate, Germany. Mineral

Kalsilite

kalsilite

Formula
KAlSiO4
Mineral

Kalungaite

kalungaite

Formula
PdAsSe
Colour
grey