Mineral Specimen Images (K)

Kuzmenkoite-Mn: (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O)

Comments: Yellowish brown kuzmenkoite-Mn crystals on matrix, with smaller, more brown colored labuntsovite-Mn.
Location: Mnt Flora, Lovozero, Kola, Russia. Scale: Sample Size 2x3 cm.
© Diederik Visser

Kuzmenkoite-Mn: (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O)  
Calciohilairite: CaZrSi3O9·3(H2O)

Comments: White rhombododecahedral crystals of calciohilairite associated with orange=brown stout prismatic kuzmenkoite-Mn on matrix.
Location: Flora Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: FOV ~1x1 cm.
© Pavel M. Kartashov

Kyanite: Al2SiO5 = Al[6]Al[6]OSiO4

Comments: Two terminated, bright blue crystals of kyanite in a white quartz matrix.
Location: Barra do Salinas, Minas Gerais, Brazil. Scale: 9.5 x 4 x 4 cm.
© Isaias Casanova / IC Minerals

Kyanite: Al2SiO5 = Al[6]Al[6]OSiO4

Comments: Cluster of 4, green, gemmy, fluorescent blades of kyanite.
Location: Pech, Afghanistan. Scale: 1.7 x 1.0 x 0.3 cm.
© Kieth Hayes

Kyanoxalite: Na7(Al5-6Si6-7O24)(C2O4)0.5-1.0·5H2O

Comments: Small aggregate of white kyanoxalite crystals in matrix.
Location: Karnasurt Mt. Lovozero Massif, Kola Peninsula, Russia. Scale: Sample Size 15x8x6 mm.
© Sergey Vasiliev / Systematic Mineralogy

Kyrgyzstanite: ZnAl4(SO4)(OH)12·3(H2O)

Comments: A small coating of greenish kyrgyzstanite..
Location: Kara-Tangi U deposit, Batken Oblast, Kyrgyzstan. Scale: Field of view 0.3 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Kyzylkumite: V+++2Ti3O9

Comments: A small crystal of kyzylkumite with a triangular face.
Location: Koscheka U Deposit, Auminzatau Mtns., Central Kyzylkum Region, Kyzylkum Desert, Uzbekistan. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag