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Eric Carlson's Photo Gallery

6CE-E59Linarite, Brochantite, Cerussite, Galena, Malachite

Sunshine No. 1 adit, Blanchard Mine, Bingham, Hansonburg District, Socorro Co., New Mexico, USA

Dimensions: 55 mm x 32 mm x 20 mm

A single 2cm wide cube of galena which has been completely epimorphed by linarite and brochantite. The linarite in this sample shows a completely different habit from the other samples I have from the Sunshine #3. In those samples, the linarite shows a bladed habit with long, gemmy crystals radiating from nucleation points along the surface of the galena. This sample shows much smaller elongate prismatic crystals which stick up from the galena cube's surface, giving the cube a bristly look. Some of the linarite has been pseudomorphed to malachite. This is distinguishable from the brochantite as it has the same crystal shape and habit as the linarite and is opaque while the brochantite is trasparent.
Near the right side of the top edge of the galena cube there is a cluster of tiny, accicular, cream-colored cerussite crystals. There are also several patches of transparent white crystalline anglesite as well as some yellow stains from a jarosite-group member (plumbojarosite?).

This specimen was collected on May 12, 2016 during a field trip with the New Mexico Tech SEG club.
Photo ID: 835662     Uploaded by: Eric Carlson   View Count: 68   Approval status: Public galleries    Type: Photo - 2912 x 2184 pixels (6.4 Mpix)

AFE-MAMSpessartine

Navegadora claim, Penha do Norte, Conselheiro Pena, Minas Gerais, Brazil

Dimensions: 17 mm x 10 mm x 5 mm

Photo ID: 835659     Uploaded by: Eric Carlson   View Count: 43   Approval status: Public galleries    Type: Photo - 2805 x 2104 pixels (5.9 Mpix)

N6X-XNUPetzite, Coloradoite, Gold

Bessie G Mine, La Plata Mining District, La Plata Co., Colorado, USA

Dimensions: 35 mm x 30 mm x 25 mm

Petzite, Coloradoite, Gold

0.5 cm thick, 1.5 cm in diameter disk-shaped mass of intermixed anhedral Petzite and Coloradoite on an angular block of biege-colored matrix. The two tellurides are fine-grained iron-gray and coarse-grained metallic light-yellow bronze. Presumably, the bronze is Petzite while the iron-gray is Coloradoite. There are also tiny blobs of gold scattered around the disk.
Photo ID: 835658     Uploaded by: Eric Carlson   View Count: 180   Approval status: Public galleries    Type: Photo - 2957 x 2218 pixels (6.6 Mpix)

U13-8R6Anorthoclase, Kenyaite, Clinoenstatite

Multiple photos available
Mt Erebus, Ross Island, Victoria Land, Eastern Antarctica, Antarctica

Dimensions: 6.5 cm x 1.4 cm x 2.2 cm
Largest Crystal Size: 6.5 cm

A 6.5 x 2.2 x 1.4 cm carlsbad twinned Anorthoclase phenocryst, coated with white Kenyaite. Also, there is a small (~6mm long) crystal of Clinoenstatite perched on one of the ends of the Anorthoclase crystal. Information on how these crystals formed can be found in the article "CRYSTALLIZATION PROCESSES OF ANORTHOCLASE PHENOCRYSTS IN THE MOUNT EREBUS MAGMATIC SYSTEM: EVIDENCE FROM CRYSTAL COMPOSITION, CRYSTAL SIZE DISTRIBUTIONS, AND VOLATILE CONTENTS OF MELT INCLUSIONS" by Dunbar et al.
Photo ID: 634911     Uploaded by: Eric Carlson   View Count: 224   Approval status: Public galleries    Type: Photo - 2054 x 1540 pixels (3.2 Mpix)

GE1-84YUvite Series

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Dimensions: 14 mm x 8 mm x 12 mm

Bright green 14 x 8 x 12 mm cluster of parallel Uvite crystals. The crystals are doubly terminated, but the backside of the crystals are contacted. Supposedly, the unusually bright green color is caused by Vanadium.
Photo ID: 615984     Uploaded by: Eric Carlson   View Count: 128   Approval status: Public galleries    Type: Photo - 1700 x 1700 pixels (2.9 Mpix)

4NQ-XL3Corundum (Var: Ruby)

Winza, Mpapwa, Mpwapwa District, Dodoma Region, Tanzania

Dimensions: 37 mm x 19 mm x 12 mm
Largest Crystal Size: 10 mm

Transparent 10x6x6 mm crystal of Corundum var. Ruby on matrix. Backside of crystal is completely contacted.
Photo ID: 615982     Uploaded by: Eric Carlson   View Count: 433   Approval status: Public galleries    Type: Photo - 2000 x 2000 pixels (4.0 Mpix)

CE4-UD5Rajite

Lone Pine Mine, Lone Pine Hill area, Wilcox Mining District, Catron Co., New Mexico, USA

Dimensions: 10 mm x 11 mm x 19 mm

Sparse crusts of light green Rajite covering a small piece of silicified rhyolite.
Photo ID: 615958     Uploaded by: Eric Carlson   View Count: 166   Approval status: Public galleries    Type: Photo - 1500 x 1500 pixels (2.3 Mpix)

XP8-LDUCavansite, Stilbite subgroup, Calcite

Wagholi, Pune District, Maharashtra, India

Dimensions: 39 mm x 25 mm x 14 mm

A flat 20x15 mm spray of teal Cavansite on a matrix coated with tiny white Stilbite crystals. The spray has some minor damage at its edges which is not visible unless looked at from the side. The spray also has several tiny Stilbite crystals growing on it. There are also a couple of tiny calcite rhombs and several larger Stilbite crystals on the matrix.

(Note: The cavansite appears bright blue in the picture due to inadequacies in my camera's sensor. The cavansite does not have that color at all in person, and is actually a bright teal.)
Photo ID: 615957     Uploaded by: Eric Carlson   View Count: 152   Approval status: Public galleries    Type: Photo - 2000 x 2000 pixels (4.0 Mpix)
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