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Larry Maltby's Photo Gallery

Greater Detroit Gem and Mineral Show, 1976.

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Daybreak Mine, Spokane Co., Washington.

Lou Lafayette specimen.
Copyright: © Larry Maltby      Photo ID: 1012503     Uploaded by: Larry Maltby   View Count: 9   Approval status: User gallery    Type: Photo - 4178 x 2607 pixels (10.9 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

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Wulfenite, Defiance Mine, Gleeson, Arizona.

Lou Lafayette specimen.
Copyright: © Larry Maltby      Photo ID: 1012502     Uploaded by: Larry Maltby   View Count: 4   Approval status: User gallery    Type: Photo - 4610 x 3073 pixels (14.2 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

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Vanadinite (Var: Arsenatian Vanadinite), Erupción Mine, Los Lamentos Mts, Ahumada Municipality, Chihuahua, Mexico.

Lou Lafayette specimen.
Copyright: © Larry Maltby      Photo ID: 1012501     Uploaded by: Larry Maltby   View Count: 2   Approval status: User gallery    Type: Photo - 4752 x 3168 pixels (15.1 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

01858010015736427018782.jpg
Fluorite, Stoneco Auglaize Quarry, Junction, Paulding Co., Ohio.

Lou Lafayette specimen.
Copyright: © Larry Maltby      Photo ID: 1012497     Uploaded by: Larry Maltby   View Count: 1   Approval status: User gallery    Type: Photo - 4118 x 2745 pixels (11.3 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

02573320015736425133012.jpg
Fluorite, Stoneco Auglaize Quarry, Junction, Paulding Co., Ohio.

Lou Lafayette specimen.
Copyright: © Larry Maltby      Photo ID: 1012496     Uploaded by: Larry Maltby   View Count: 1   Approval status: User gallery    Type: Photo - 4275 x 2850 pixels (12.2 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

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Dealer Display.

A major discovery of these superb wulfenite crystals at the San Francisco Mine, Magdalena, Mexico produced an abundance of specimens. Some were associated with mimetite. The find was introduced at Detroit and a large number of these were also available at the Tucson Show in February, 1977.
Copyright: © Larry Maltby      Photo ID: 1012359     Uploaded by: Larry Maltby   View Count: 16   Approval status: User gallery    Type: Photo - 3500 x 2300 pixels (8.1 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

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Dealer display
Copyright: © Larry Maltby      Photo ID: 1012358     Uploaded by: Larry Maltby   View Count: 11   Approval status: User gallery    Type: Photo - 2701 x 3883 pixels (10.5 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

07268390015735601099839.jpg
Witherite, Minerva Mine, Cave-in-rock, Illinois.

Lou Lafayette specimen.
Copyright: © Larry Maltby      Photo ID: 1012247     Uploaded by: Larry Maltby   View Count: 11   Approval status: User gallery    Type: Photo - 2958 x 3770 pixels (11.2 Mpix)

Greater Detroit Gem and Mineral Show, 1976.

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Sulphur, Maybee Quarry, Monroe Co. Michigan.

Lou Lafayette specimen.
Copyright: © Larry Maltby      Photo ID: 1012243     Uploaded by: Larry Maltby   View Count: 5   Approval status: User gallery    Type: Photo - 2521 x 3731 pixels (9.4 Mpix)

4JT-1G2Quartz (Var: Chalcedony) SiO2 , Calcite CaCO3

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Buffalo Gap National Grasslands, South Dakota, USA

Field of View: 1.0 m

The host “rock” in which the veins of chalcedony with calcite centers forms is bentonite clay. Bentonite, sometimes called “popcorn rock” has a very high content of expansive volcanic ash. When wet, the grains can expand as much as 20 times in size. Conversely, when the bentonite dries, a pattern of deep mud cracks opens up. Silica is abundant in volcanic ash and in solution, crystallizes in the openings. The calcite centers are likely the result of the natural leaching of limestone which surrounds the adjacent Black Hills.
Copyright: © Larry Maltby      Photo ID: 1012221     Uploaded by: Larry Maltby   View Count: 25   Approval status: Public galleries    Type: Photo - 2000 x 1333 pixels (2.7 Mpix)
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