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Jyrki Autio's Photo Gallery

9UJ-780Bornite : Cu5FeS4, Chalcopyrite : CuFeS2, Covellite : CuS, Digenite : Cu1.8S

Multiple photos available
Kapuli, Mäntsälä, Southern Finland Region, Finland

Field of View: 0.4 mm

PPL reflected light microphotograph of pink-brown massive bornite with intergrown traces of chalcopyrite in it. Yellow area is chalcopyrite, dark blue anisotropic is covellite, and there are micro-veins of light blue minor digenite. Mid-grey vein cores are silicate which is transluscent under fully crossed polarisers.
Picture and identification Joel Dyer 2018. Jyrki Autio specimen.
Photo ID: 875333     Uploaded by: Jyrki Autio   View Count: 10   Approval status: Public galleries    Type: Photo - 4000 x 2667 pixels (10.7 Mpix)

DCC-8MLChalcocite : Cu2S, Covellite : CuS

Multiple photos available
Kymi genthelvite greisen, Kotka, Southern Finland Region, Finland

Field of View: 0.4 mm

Dull, darkish grey-blue areas are chalcocite. Red, deep blue, brassy and violet areas in reflected XPL light are covellite and transluscent areas are mainly silicates. Picture and identification Joel Dyer 2018. Jyrki Autio specimen.
Photo ID: 875210     Uploaded by: Jyrki Autio   View Count: 28   Approval status: Public galleries    Type: Photo - 5184 x 3456 pixels (17.9 Mpix)

XM7-Y25Chalcocite : Cu2S, Covellite : CuS, Chalcopyrite : CuFeS2, Bornite : Cu5FeS4

Kymi genthelvite greisen, Kotka, Southern Finland Region, Finland

Field of View: 0.4 mm

Pastel grey-blue area is chalcocite, dark blue areas in reflected PPL light are covellite, brownish-pink area is bornite and small golden areas are chalcopyrite.
Picture and identification Joel Dyer 2018. Jyrki Autio specimen.
Photo ID: 875208     Uploaded by: Jyrki Autio   View Count: 23   Approval status: Public galleries    Type: Photo - 4500 x 3000 pixels (13.5 Mpix)

QL6-QTLUraninite : UO2

Kaatiala pegmatite, Kuortane, Western and Inner Finland Region, Finland

Field of View: 4 mm

3 x 3 mm area of black uraninite with yellow secondary mineral.
Photo ID: 874802     Uploaded by: Jyrki Autio   View Count: 16   Approval status: Public galleries    Type: Photo - 3735 x 2801 pixels (10.5 Mpix)

92V-5YRLepidolite

Multiple photos available
Kaatiala pegmatite, Kuortane, Western and Inner Finland Region, Finland

Field of View: 3 mm
Largest Crystal Size: 1.5 mm

Along C-axis color zoned lepidolite.
Photo ID: 874673     Uploaded by: Jyrki Autio   View Count: 18   Approval status: Public galleries    Type: Photo - 4040 x 3030 pixels (12.2 Mpix)

KKY-PLRBismuth : Bi

Jáchymov, Jáchymov District, Krušné Hory Mts, Karlovy Vary Region, Bohemia, Czech Republic

Dimensions: 70 mm x 55 mm x 35 mm

2 cm thick vein of native bismuth.
Photo ID: 872102     Uploaded by: Jyrki Autio   View Count: 10   Approval status: Public galleries    Type: Photo - 4184 x 3138 pixels (13.1 Mpix)

XC8-7HEFormanite-(Y) : YTaO4

Ytterby, Resarö, Vaxholm, Uppland, Sweden

Dimensions: 45 mm x 35 mm x 20 mm
Largest Crystal Size: 12 mm

Platy square crystals of formanite-(Y). Yellow-green in thin edges. From J. K.
Photo ID: 871577     Uploaded by: Jyrki Autio   View Count: 10   Approval status: Public galleries    Type: Photo - 5184 x 3456 pixels (17.9 Mpix)

YTC-FAFHydroxyapophyllite-(K) : KCa4Si8O20(OH,F)·8H2O

Multiple photos available
Amazonite pegmatite, Laitila, Southwestern Finland Region, Finland

Dimensions: 25 mm x 20 mm x 15 mm

Hydroxyapophyllite-(K) from Laitila collected by Joel Dyer.
Photo ID: 870663     Uploaded by: Jyrki Autio   View Count: 18   Approval status: Public galleries    Type: Photo - 3888 x 2916 pixels (11.3 Mpix)

Y87-L07Orthoclase : K(AlSi3O8)

Multiple photos available
Kultaanranta quarry, Kotka, Southern Finland Region, Finland

Dimensions: 100 mm x 60 mm x 40 mm
Largest Crystal Size: 40 mm

Epidote covered orthoclase spheroids in rapakivi granite.
Photo ID: 870400     Uploaded by: Jyrki Autio   View Count: 22   Approval status: Public galleries    Type: Photo - 4097 x 2731 pixels (11.2 Mpix)

2EF-8NKSphalerite : ZnS, Fluorite : CaF2

Kultaanranta quarry, Kotka, Southern Finland Region, Finland

Dimensions: 20 mm x 20 mm x 15 mm
Field of View: 3 mm

Yellow sphalerite with blue fluorite.
Photo ID: 870128     Uploaded by: Jyrki Autio   View Count: 13   Approval status: Public galleries    Type: Photo - 4431 x 2954 pixels (13.1 Mpix)
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