Mineral Specimen Images (Q)

Mineral Specimen Images (Q)
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Mineral Specimen Images (Q) With 40 Images

Qandilite Image

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Qandilite: (Mg,Fe++)2(Ti,Fe+++,Al)O4

Comments: Small black grains of qandilite in a forsterite skarn rock matrix.
Location: Dupezeh Mt., Hero, Qala-Diz (Qala-Dizeh; Qala-Diza), Iraq. Scale: Picture Size 0.5 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Qandilite Image

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Qandilite: (Mg,Fe++)2(Ti,Fe+++,Al)O4

Comments: B&W photograph in plane-polarized light showing rounded fractured serpentinized olivine surrounded by the interstitial calcite (C), qandilite (Q), perovskite (P), and altered Mg,Al-spinel (Sp). (MinMag, v49:739).
Location: Forsterite-rich rock in contact with a kaersutite-rich banded diorite from the Qala-Dizeh region, NE Iraq. Scale: See Image.
© Mineralogical Magazine

Qandilite Image

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Qandilite: (Mg,Fe++)2(Ti,Fe+++,Al)O4

Comments: B&W photograph in plane-polarized light showing rounded fractured serpentinized olivine surrounded by the interstitial calcite (C), qandilite (Q), perovskite (P), and altered Mg,Al-spinel (Sp). (MinMag, v49:739).
Location: Forsterite-rich rock in contact with a kaersutite-rich banded diorite from the Qala-Dizeh region, NE Iraq. Scale: See Image.
© Mineralogical Magazine

Qandilite Image

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Qandilite: (Mg,Fe++)2(Ti,Fe+++,Al)O4

Comments: Small black grains of qandilite in a forsterite skarn rock matrix.
Location: Dupezeh Mt., Hero, Qala-Diz (Qala-Dizeh; Qala-Diza), Iraq. Scale: Picture Size 0.5 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Qaqarssukite-(Ce) Image

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Qaqarssukite-(Ce): Ba(Ce,REE)(CO3)2F

Comments: SEM image showing a blocky, stepped group of qaqarssukite-(Ce) crystals with several broken needles of strontianite. (CanMin, v44:1137).
Location: Qaqarssuk complex, Greenland. Scale: See Image.
© Canadian Mineralogist

Qaqarssukite-(Ce) Image

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Qaqarssukite-(Ce): Ba(Ce,REE)(CO3)2F

Comments: SEM image showing a blocky, stepped group of qaqarssukite-(Ce) crystals with several broken needles of strontianite. (CanMin, v44:1137).
Location: Qaqarssuk complex, Greenland. Scale: See Image.
© Canadian Mineralogist

Quadratite Image

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Quadratite: Ag(Cd,Pb)AsS3

Comments: Tabular crystals of quadratite with small silvery gray, rounded crystals of galena.
Location: Lengenbach quarry, Binntal, Wallis (Valais), Switzerland. Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

Quadratite Image

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Quadratite: Ag(Cd,Pb)AsS3

Comments: Aggregate of 3 black tabular crystals of quadratite (reflecting light) on jordanite/lengenbachite and white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 0.2 mm.
© Walter Gabriel

Quadratite Image

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Quadratite: Ag(Cd,Pb)AsS3

Comments: Tabular crystals of quadratite with small silvery gray, rounded crystals of galena.
Location: Lengenbach quarry, Binntal, Wallis (Valais), Switzerland. Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

Quadratite Image

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Quadratite: Ag(Cd,Pb)AsS3

Comments: Aggregate of 3 black tabular crystals of quadratite (reflecting light) on jordanite/lengenbachite and white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 0.2 mm.
© Walter Gabriel

Quadridavyne Image

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Quadridavyne: (Na,K)6Ca2Al6Si6O24Cl4

Comments: Colorless hexagonal crystals of quadridavyne.
Location: Ettringer Bellerberg, Ettringen, near Mayen, Eifel Mts, Rhineland-Palatinate, Germany. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Quadridavyne Image

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Quadridavyne: (Na,K)6Ca2Al6Si6O24Cl4

Comments: Colorless hexagonal crystals of quadridavyne.
Location: Ettringer Bellerberg, Ettringen, near Mayen, Eifel Mts, Rhineland-Palatinate, Germany. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Quartz Image

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Quartz: SiO2  
Calcite: CaCO3

Comments: Purple-colored druse of amethystine quartz and white calcite.
Location: Rio Grande do Sul, Brazil. Scale: Sample size 20 cm.
© Dave Barthelmy

Quartz Image

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Quartz: SiO2

Comments: Slightly smokey quartz overgrown with rose quartz. Note the exceptional transparency of the rose quartz.
Location: Lavra da Ilha, Taquaral, Minas Gerais, Brazil. Scale: 10 cm by 5.2 cm.
© Kevin Ward

Quartz Image

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Quartz: SiO2  
Chalcopyrite: CuFeS2

Comments: Well-formed crystals of chalcopyrite and quartz.
Location: Boldut mine, 61 level (350 meters deep), Cavnic, Maramures, Rumania. Scale: 5.5 x 3.5 cm.
© Fabre Minerals

Quartz Image

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Quartz: SiO2  
Ilvaite: CaFe++2Fe+++Si2O7O(OH)

Comments: Black, prismatic ilvaite with quartz.
Location: First Sovietskij mine, Dalnjegorsk, Russia. Scale: 3.5 x 4.5 cm.
© Fabre Minerals

Quartz Image

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Quartz: SiO2

Comments: Crystal druse of transparent quartz crystals.
Location: Hot Springs, Arkansas, USA. Scale: Specimen size 6 cm.
© Dave Barthelmy

Quartz Image

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Quartz: SiO2  
Apatite-(CaF): Ca5(PO4)3F

Comments: Purple crystal of fluorapatite on slightly smoky quartz crystals. Former Dr. E.E. David and Houston Museum collections.
Location: Pech, Kunar Province, Nuristan, Afghanistan. Scale: Crystal size 3.0 x 2.1 x 1.7 cm.
© Ed Rosenzweig

Quartz Image

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Quartz: SiO2  
Epistilbite: CaAl2Si6O16ยท5(H2O)

Comments: White epistilbite cluster 25 mm across on amethyst quartz crystal matrix.
Location: Sawda, Jalgaon, Maharashtra, India. Scale: 10x8x5 cm.
© John Betts - Fine Minerals

Quartz Image

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Quartz: SiO2  
Calcite: CaCO3

Comments: Purple-colored druse of amethystine quartz and white calcite.
Location: Rio Grande do Sul, Brazil. Scale: Sample size 20 cm.
© Dave Barthelmy
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