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Scott Sadlocha's Photo Gallery

QLV-JEEMicrocline K(AlSi3O8) , Monazite-(Ce) Ce(PO4)

Multiple photos available
06534510014947320478096.jpg
Black River pegmatite, Republic, Marquette Co., Michigan, USA

Dimensions: 2.78 cm x 1.56 cm x 1.28 cm

This specimen was self collected in August 2010, and is 2.78 x 1.56 x 1.28 cm.

It consists of a TN sized piece of microline veined with Monazite-(Ce), most prominently along the top, and continuing a bit down the left hand side to the lower left corner. The Monazite-(Ce) exhibits an almost crudely crystalline structure and is about 1.2 cm across the top.

There are also some very small, though fairly bright, red blebs on the back or bottom, to about 1-2 mm, though I am not sure what they are.

In the child photos, I tried to get a close up of the Monazite-(Ce) and the red blebs.
Copyright: © Scott Sadlocha      Photo ID: 449398     Uploaded by: Scott Sadlocha   View Count: 175   Approval status: Public galleries    Type: Photo - 877 x 819 pixels (0.7 Mpix)

18T-W4RMicrocline K(AlSi3O8) , Quartz SiO2 , Muscovite KAl2(AlSi3O10)(OH)2 , Topaz Al2(SiO4)(F,OH)2

02836650014947320476569.jpg
Black River pegmatite, Republic, Marquette Co., Michigan, USA

Dimensions: 5.36 cm x 3.63 cm x 2.94 cm

This specimen was self collected in August 2010, and is 5.36 x 3.63 x 2.94 cm.

It consists of a small piece of microline veined with quartz, along with a small vein of foliated muscovite crystals across the bottom, typical of this locality. Initially I thought the small bleb in the lower left to be some type of prismatic crystal, but on closer inspection I have found it to be the edge of a hexagonal muscovite cluster.

Along the muscovite vein are several small areas of topaz. Some of these seem to extend through to the side, where the crystal shape can still be determined in the cross section (just barely visible on the flat right side of the piece, which is turned slightly away).
Copyright: © Scott Sadlocha      Photo ID: 449396     Uploaded by: Scott Sadlocha   View Count: 129   Approval status: Public galleries    Type: Photo - 1292 x 982 pixels (1.3 Mpix)

KK0-3CTMicrocline K(AlSi3O8) , Muscovite KAl2(AlSi3O10)(OH)2 , Quartz SiO2 , Fluorite CaF2 , Topaz Al2(SiO4)(F,OH)2

Multiple photos available
07256330014947320469504.jpg
Black River pegmatite, Republic, Marquette Co., Michigan, USA

Dimensions: 10.72 cm x 6.11 cm x 4.3 cm

This specimen was self collected in August 2010, and is 10.72 x 6.11 x 4.30 cm.

It consists of a large piece of microline veined with quartz, along with a cluster of foliated muscovite crystals across left side, typical of this locality. Intermixed in the cluster is massive, dark purple fluorite. The entire cluster is about 3.5 cm across, and also has some earthy cream colored micro mineralization, including a very tiny pocket that is very interesting under the scope, though I am not sure what is there.

The cloudy, slightly green tinted mineralization around the cluster is topaz. The black spot in the lower center is about 1 cm across, but is not exposed enough to identify. It does continue all the way through to the bottom, and what little is exposed reminds me of the Columbite-(Fe) that can be found at this location, but I can't say unless I try to expose it a bit more.
Copyright: © Scott Sadlocha      Photo ID: 447703     Uploaded by: Scott Sadlocha   View Count: 173   Approval status: Public galleries    Type: Photo - 1588 x 1383 pixels (2.2 Mpix)

0LV-FKEMicrocline K(AlSi3O8) , Muscovite KAl2(AlSi3O10)(OH)2 , Quartz SiO2 , Fluorite CaF2

Multiple photos available
03599540014947320467161.jpg
Black River pegmatite, Republic, Marquette Co., Michigan, USA

Dimensions: 5.04 cm x 3.61 cm x 2.6 cm

This specimen was self collected in August 2010, and is 5.04 x 3.61 x 2.60 cm.

It consists of a small piece of microline veined with quartz, along with intergrown foliated muscovite crystals throughout, typical of this locality. There is also a small, approximately 8mm, spot of lighter purple massive fluorite on the bottom, under the small arch.
Copyright: © Scott Sadlocha      Photo ID: 445109     Uploaded by: Scott Sadlocha   View Count: 150   Approval status: Public galleries    Type: Photo - 1193 x 1001 pixels (1.2 Mpix)

98T-T96Microcline K(AlSi3O8) , Muscovite KAl2(AlSi3O10)(OH)2 , Quartz SiO2

05736670014947320457955.jpg
Black River pegmatite, Republic, Marquette Co., Michigan, USA

Dimensions: 8.35 cm x 6.97 cm x 2.45 cm

This specimen was self collected in August 2010, and is 8.35 x 6.97 x 2.45 cm.

It consists of a piece of microline veined with quartz, along with a cluster of foliated muscovite crystals across the right side, typical of this locality. The hexagonal shape of the muscovite layers is still fairly intact in this specimen.
Copyright: © Scott Sadlocha      Photo ID: 445108     Uploaded by: Scott Sadlocha   View Count: 151   Approval status: Public galleries    Type: Photo - 1922 x 1373 pixels (2.6 Mpix)

JWR-4YYMicrocline K(AlSi3O8) , Muscovite KAl2(AlSi3O10)(OH)2 , Quartz SiO2

01540760014947320457139.jpg
Black River pegmatite, Republic, Marquette Co., Michigan, USA

Dimensions: 9.99 cm x 5.5 cm x 4 cm

This specimen was self collected in August 2010, and is 9.99 x 5.50 x 4.00 cm.

It consists of a large piece of microline veined with quartz, along with a cluster of foliated muscovite crystals across the center, typical of this locality. The quartz has some interesting casting where some of the muscovite has fallen away, which can be seen in the upper center of the piece. There is also some yellow-green mineralization along the top right in a very thin layer on one spot, though I am not certain as to its identification.
Copyright: © Scott Sadlocha      Photo ID: 445105     Uploaded by: Scott Sadlocha   View Count: 123   Approval status: Public galleries    Type: Photo - 1868 x 1102 pixels (2.1 Mpix)

F5V-LC0Microcline K(AlSi3O8) , Muscovite KAl2(AlSi3O10)(OH)2 , Quartz SiO2 , Monazite-(Ce) Ce(PO4)

Multiple photos available
05123850014947320442878.jpg
Black River pegmatite, Republic, Marquette Co., Michigan, USA

Dimensions: 11.3 cm x 10.09 cm x 7.47 cm

This specimen was self collected in August 2010, and is 11.30 x 10.09 x 7.47 cm.

It consists of a large piece of microline veined with quartz, along with a cluster of foliated muscovite crystals across one corner, typical of this locality. The quartz has some interesting casting where some of the muscovite has fallen away. There is also some yellow-green mineralization along the bottom in a very thin layer on one spot and some yellow white crust along one of the cleavage planes on the side, though I am not certain as to the identification of either.

Lastly, there is a tiny, 2.7 mm fragment of a Monazite-(Ce) crystal along the back, which I only found after careful examination of the entire piece.
Copyright: © Scott Sadlocha      Photo ID: 444820     Uploaded by: Scott Sadlocha   View Count: 345   Approval status: Public galleries    Type: Photo - 1888 x 1679 pixels (3.2 Mpix)

UG8-878Hematite Fe2O3 , Limonite (Fe,O,OH,H2O)

04290280014948918041351.jpg
Ohio Mines, Imperial Heights, Baraga Co., Michigan, USA

Dimensions: 4.3 cm x 2.73 cm x 2.15 cm

This specimen was self collected in August 2010, and is 4.30 x 2.73 x 2.15 cm.

It consists of a small piece of layered hematite, some of it altered to limonite. In a few small areas, the botryoidal habit of the hematite can be seen where it had room to grow. The botryoidal areas have a grayish white coating on them, though I am not sure of its composition.
Copyright: © Scott Sadlocha      Photo ID: 444456     Uploaded by: Scott Sadlocha   View Count: 151   Approval status: Public galleries    Type: Photo - 1071 x 1003 pixels (1.1 Mpix)

DR4-XMDGoethite α-Fe3+O(OH) , Quartz SiO2 , Limonite (Fe,O,OH,H2O)

08755080014947202029253.jpg
Ohio Mines, Imperial Heights, Baraga Co., Michigan, USA

Dimensions: 4.82 cm x 4.3 cm x 3.88 cm

This specimen was self collected in August 2010, and is 4.82 x 4.30 x 3.88 cm.

It consists of a small piece of heavily weathered stalactic goethite attached to a section of massive quartz veining. There is actually some velvety micro-crystallization visible in the folds of the goethite, and it looks quite nice under a scope. The goethite has also altered to limonite in spots.
Copyright: © Scott Sadlocha      Photo ID: 444452     Uploaded by: Scott Sadlocha   View Count: 269   Approval status: Public galleries    Type: Photo - 1087 x 1341 pixels (1.5 Mpix)

2LU-0W6Hematite Fe2O3 , Quartz SiO2

06368540014948918041435.jpg
Ohio Mines, Imperial Heights, Baraga Co., Michigan, USA

Dimensions: 3.54 cm x 3.52 cm x 2.62 cm

This specimen was self collected in August 2010, and is 3.54 x 3.52 x 2.62 cm.

It consists of a small piece of alternating bands of hematite and massive quartz, and is a piece of the banded iron formation that Michigan's Upper Peninsula is known for, though it is not colored as much as samples often are. On the top of the piece, there is even an area where micro-hematite crystallization can be seen, and the bottom contains a small area of micro-quartz crystals.
Copyright: © Scott Sadlocha      Photo ID: 444442     Uploaded by: Scott Sadlocha   View Count: 174   Approval status: Public galleries    Type: Photo - 1045 x 1139 pixels (1.2 Mpix)
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