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Mineralati

Minerals

6323 results

White crystal aggregates of the very rare mineral kumtyubeite from Urals (Kopeisk, Chelyabinsk Oblast, Russian Federation). Only very few localities known worldwide. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kumtyubeite

kumtyubeite

Formula
Ca5(SiO4)2F2
Mineral

Kunatite

kunatite

Formula
CuFe³⁺2(PO4)2(OH)2·4H2O
The larger xl is about 20 x 7 x 3 mm. Via Jean-Yves Lamoureux (found July 1989). MOB coll. This has now been conclusively identified as ordinary kupletskite by Paula Piilonen at the Canadian Museum of Nature. From: Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada. Mineral

Kupletskite

kupletskite

Formula
(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Genthelvite, Kupletskite-(Cs) Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada (Locality at mindat.org) A superb example of this very rare species, from a single pocket collected about 2 years ago that features unusually large, unusually translucent, unusually pretty pastel green crystals. 1.4 x 0.9 x 0.9 cm Mineral

Kupletskite-(Cs)

kupletskite-(Cs)

Formula
Cs2NaMn²⁺7Ti2(Si4O12)2O2(OH)4F
Mineral

Kupčíkite

kupčíkite

Formula
Cu3.4Fe0.6Bi5S10
Mineral

Kuramite

kuramite

Formula
Cu3SnS4
Mohs
4.5
Brown crystals of the very rare tellurium mineral kuranakhite from the famous locality of Moctezuma (Moctezuma Mine, Moctezuma, Moctezuma Municipality, Sonora, Mexico). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kuranakhite

kuranakhite

Formula
PbMn⁴⁺Te⁶⁺O6
Mineral

Kuratite

kuratite

Formula
Ca2(Fe²⁺5Ti)O2[Si4Al2O18]
White crystal aggregates of the borate mineral hexahydroborite associated to grey kurchatovite from Russia (Solongo B Deposit, Vitim Plateau, Baunt District, Buryatia Republic, Russian Federation). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kurchatovite

kurchatovite

Formula
Ca(Mg,Mn²⁺)[B2O5]
Mineral

Kurgantaite

kurgantaite

Formula
CaSr[B5O9]Cl·H2O
Mineral

Kurilite

kurilite

Formula
Ag8Te3Se
Kurnakovite Locality: Boron, Kramer District, Kern County, California, USA (Locality at mindat.org) Size: miniature, 5 x 3.6 x 1.5 cm Kurnakovite A very well-formed, translucent kurnakovite crystal from this classic locality. Few were saved as they came out, and specimens of this quality are hard to obtain today. Note that this rare borate will need to be kept in a dry environment Mineral

Kurnakovite

kurnakovite

Formula
Mg[B3O3(OH)5](H2O)4·H2O
Colour
white
Orange single crystal aggregate of the extremely rare mineral kurumsakite from the type locality in Kurumsak (Kurumsak, Aksumbe, Turkistan Region, Kazakhstan). Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium. Mineral

Kurumsakite

kurumsakite

Formula
Zn8Al8V⁵⁺2Si5O35·27H2O (?)
Kusachiite is an extremely rare binary copper(II) and bismuth(III) oxide with a chemical formula CuBi2O4. This sample belongs from the Type Locality: the well-known Fuka mine in Japan. This sample is rich in radial aggregates of kusachiite crystals, with a deep brown to black colour and contasting on the matrix. They are accompanied by calcite, quartz and other species like cahnite or bismite. We have carried out some SEM-EDS analysis and Raman. With these spectroscopical techniques we have confirmed the presence of the species. Mineral

Kusachiite

kusachiite

Formula
Cu²⁺Bi³⁺2O4
Mineral

Kushiroite

kushiroite

Formula
CaAlAlSiO6
Black metallic crystals of the extremely rare Ag-sulphosalt mineral kutinaite from the type locality: Cerný Dul (Schwarzenthal), Krkonoše, Bohemia, Czech Republic. Ex. Dr.Hartel collection. Mineral

Kutinaite

kutinaite

Formula
Ag6Cu14As7
Mohs
4.5
Kutnohorite Locality: Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa (Locality at mindat.org) A dramatic cluster of two kutnahorite clusters, richly pink and sharply tapered! Complete and 3-dimensional, 360 degrees! 6.2 x 6.1 x 3.8 cm Mineral

Kutnohorite

kutnohorite

Formula
CaMn²⁺(CO3)2
Mineral

Kuvaevite

kuvaevite

Formula
Ir5Ni10S16
Pearly Kuzelite (Picture size: 1.7 mm) Locality: Bellerberg, Eifel, Rhineland-Palatinate, Germany Mineral

Kuzelite

kuzelite

Formula
Ca4Al2(OH)12[SO4] * 6H2O
Kuzmenkoite-Mn Locality: Flora Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia (Locality at mindat.org) Picture width 1.5 mm. Collection and photograph Christian Rewitzer Mineral

Kuzmenkoite-Mn

kuzmenkoite-Mn

Formula
K2MnTi4(Si4O12)2(OH)4·5-6H2O
Mineral

Kuzmenkoite-Zn

kuzmenkoite-Zn

Formula
K2ZnTi4(Si4O12)2(OH)4·6-8H2O
Mineral

Kuzminite

kuzminite

Formula
HgBr
Mohs
1.5
Beige crystal aggregates of the extremely rare Hg arsenate kuznetsovite from the TL in Kyrgyzstan (Khaidarkan Sb-Hg deposit (Chaidarkan; Hajdarkan), Batken Region, Kyrgyzstan). Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kuznetsovite

kuznetsovite

Formula
(Hg+2)Hg²⁺(AsO4)Cl
Outstanding pink with a distinct violet hue crystal aggregates of the extremely rare silicate kvanefjeldite from the type and only known locality worldwide in Greenland: Kvanefjeld, Ilímaussaq, Narsaq, Kujalleq, Greenland. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Kvanefjeldite

kvanefjeldite

Formula
Na4(Ca,Mn)(Si3O7)2(OH)2