Sergey Vasiliev's Image Gallery

Jahnsite-(MnMnMn): MnMnMn2Fe+++2(PO4)4(OH)2·8(H2O)

Comments: Brownish red aggregate of jahnsite-(MnMnMn).
Location: Stewart Mine, Near Pala, San Diego Co., California, USA. Scale: Specimen Size 8x5x4 mm.
© Sergey Vasiliev / Systematic Mineralogy

Karupmollerite-Ca: (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O)

Comments: Small white fragment of kaupmollerite-Ca in a geletin capsule.
Location: Mellemelv, Ilimaussaq, Greenland. Scale: Capsule Size 1 cm.
© Sergey Vasiliev / Systematic Mineralogy

Kokchetavite: KAlSi3O8

Comments: Fragment of eclogite containing kokchetavite which occurs as inclusions in clinopyroxene and garnet (see inset BSE images).
Location: Kumde-Kul Area, Kokchetav Massif, Kokchetav Oblast', Kazakhstan. Scale: Specimen Size 6x6x6 mm.
© Sergey Vasiliev / Systematic Mineralogy

Kuliokite-(Y): (Y,REE)4Al(SiO4)2(OH)2F5

Comments: White encrustations of kuliokite-(Y) grains on pegmatite.
Location: Ploskaya Mt., Western Keivy, Kola Peninsula, Russia. Scale: Specimen Size 14x10x8 mm.
© Sergey Vasiliev / Systematic Mineralogy

Kurgantaite: CaSr[B5O9]Cl·(H2O)

Comments: Crystal fragment of white kurgantaite on sticky stuff.
Location: Korshunovskoye Deposit, Transbaikal, Irkutsk District, Russia. Scale: Specimen Size 6x3x2 mm.
© Sergey Vasiliev / Systematic Mineralogy

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

Labyrinthite: (Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3

Comments: Rose-colored crystal fragment of labyrinthite.
Location: Koashva Mt., Khibiny Massif, Kola Peninsula, Russia. Scale: Crystal Size 3 mm.
© Sergey Vasiliev / Systematic Mineralogy

Magnesioastrophyllite: K2Na[Na(Fe++,Fe+++,Mn)Mg2]Ti2Si8O26(OH)4F

Comments: White chalky mass of magnesioastrophyllite in matrix.
Location: N'orkpakhk Mt., Khibiny Massif, Kola Peninsula, Russia. Scale: Specimen Size 35 x 25 x 10 mm.
© Sergey Vasiliev / Systematic Mineralogy

Magnesiostaurolite: [ ]4Mg4Al16(Al,[ ])2Si8O40[O6,(OH)2]

Comments: White crystals of magnesiostaurolite in rose quartz.
Location: Dora Maira Massif, Cuneo Province, Piedmont, Italy. Scale: Specimen Size 42 x 27 x 25 mm.
© Sergey Vasiliev / Systematic Mineralogy

Mitryaevaite: Al5[(PO4)2[(P,S)O3(OH,O)]2F2(OH)2(H2O)8·6.48(H2O)

Comments: Small grain of white mitryaevaite on sample holder.
Location: Northwestern Karatau range, Kazakhstan. Scale: Peg Size 2 mm.
© Sergey Vasiliev / Systematic Mineralogy

Natrophosphate: Na7(PO4)2F·19(H2O)

Comments: Specimen of natrophosphate sealed into a plastic box.
Location: Koashva Mt., Khibiny Massif, Kola Peninsula, Russia. Scale: Specimen Size 2x1.5x1 cm.
© Sergey Vasiliev / Systematic Mineralogy

Nechelyustovite: (Ba,Na)2{(Na,Ti,Mn)4[(Ti,Nb)2O2Si4O14](OH,O,F)2}·4.5H2O

Comments: Nechelyustovite aggregate.
Location: Kirovsky Mine, Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Russia. Scale: Grid Size 1 mm.
© Sergey Vasiliev / Systematic Mineralogy

Neskevaaraite-Fe: NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4·6(H2O)

Comments: Aggregate of brown neskevaaraite-Fe crystals.
Location: Neskevaara Hill, Vuoriyarvi Massif, N.Karelia, Russia. Scale: Specimen Length 5 mm.
© Sergey Vasiliev / Systematic Mineralogy

Obertiite: NaNa2(Mg3Fe+++Ti)Si8O22(O,F,OH)2

Comments: Pinkish grains of obertiite in matrix.
Location: Bellerberg Mt., Eifel District, Rheinland-Phalz, Germany. Scale: Specimen Size 7x6 mm.
© Sergey Vasiliev / Systematic Mineralogy

Olgite: Na(Sr,Ba)PO4

Comments: Green mm-sized olgite crystals in matrix.
Location: Kedykverpakhk Mt., Lovozero, Kola, Russia. Scale: Not Given.
© Sergey Vasiliev / Systematic Mineralogy

Pellouxite: (Cu,Ag)Pb10Sb12S27(Cl,S)0.6O

Comments: Dark metallic pellouxite grains in matrix.
Location: Buca della Vena mine, Ponte Stazzemese, Alpi Apuane, Stazzema, Lucca, Toscana, Italy. Scale: Specimen Size 12x12x7 mm.
© Sergey Vasiliev / Systematic Mineralogy

Penobsquisite: Ca2Fe++[B9O13(OH)6]Cl·4(H2O)

Comments: Clear crystal of penobsquisite.
Location: Inder B deposit and salt dome, Atyrau Oblysy, Kazakhstan. Scale: Crystal Size 7x6x4 mm.
© Sergey Vasiliev / Systematic Mineralogy

Peprossiite-(Ce): (Ce,La)(Al3O)2/3B4O10

Comments: Yellow grains of peprossiite-(Ce) on matrix.
Location: Sacrofano Caldera, Campagnano, Lazio, Italy. Scale: Specimen Size 11x4x4 mm.
© Sergey Vasiliev / Systematic Mineralogy

Philolithite: Pb12O6Mn(Mg,Mn)2(Mn,Mg)4(SO4)(CO3)4Cl4(OH)12

Comments: Dark green mass of philolithite.
Location: Langban, Värmland, Sweden. Scale: Specimen Size 7x5x3 mm.
© Sergey Vasiliev / Systematic Mineralogy

Phosphoinnelite: Ba4Na3Ti3Si4O14(PO4,SO4)2(O,F)3

Comments: Yellowish inclusions of phosphoinnelite in matrix.
Location: Kovdor Phlogopite Quarry, Kovdor Massif, Kola Peninsula, Russia. Scale: Specimen Size 15x10x8 mm.
© Sergey Vasiliev / Systematic Mineralogy