Arsenic

  

  

 

  

 

  

With a matrix composed of probably 70% native arsenic, a vug occupies the center. The vug is lined with arsenic crystals as spherical aggregates to 2.5 mm and at the center sits several excellent, slender stibnite crystals to 2.5 cm. Also associated are small 2 mm realgar crystals.

Origin: Kusa mine, near Bau, Sarawak, Borneo

Sample size: 9 x 9 x 5 cm, stibnite crystals to 1.5 cm with an overgrowth of arsenic in aggregate crystals to 1.5 cm (top/2nd row), 12 x 7 x 6 cm, mostly arsenic matrix with crystal aggregate "balls" to 2 mm and a nice pocket 4 x 3 cm in size with 3 cm crystals of stibnite and little realgar (3rd/4th row), 13 x 8 x 6 cm (bottom)

 

Origin: Braunsdorf, Germany
Eaton Collection

Sample size: 5 x 4 x 2 cm

 

Origin: Schneesberg, Saxony, Germany
Eaton Collection

Sample size: 3.5 x 2.5 x 2.5 cm

 

Photo courtesy of: 

Dakota Matrix Minerals

 

  

Origin: Mine 296, Halde, Alberoda, Saxony, Germany

Sample size: 30 x 7 x 32 mm

 

Origin: Mine 296, Halde, Alberoda, Saxony, Germany

Sample size: 18 x 21 mm

 

  

Origin: Yechizen, Japan

Sample size: 18 x 17 x 17 mm

 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

Origin: Akadani Mine, Fukui-ken, Japan

Sample size: 1 x 1 x 1 cm

 

  

This specimen is mostly comprised of crudely crystallized and massive native arsenic. There is also abundant small crystals of argenopyrite with iridescent luster. There are even several small scattered proustite crystals on this rock.

Origin: Alberode, Erzgerbirge, Saxony, Germany
Ex-Mike Groben Collection

Sample size: 9 x 7 x 3.3 cm

 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

Grey massive arsenic mixed with native lead

Origin: Långban, Värmland, Sweden

Sample size: 1.5 x 1.5 cm

 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  

Origin: Andreasberg, Harz Mts. Region, Lower Saxony, Germany

Ex. Marilyn Dodge collection

Sample size: 2.1 x 1.7 x 1.2 cm

 

Origin: Akadani, Honshu Island, Echizen Province, Japan

Ex. Marilyn Dodge collection

Sample size: 1.4 x 1.3 x 1.1 cm

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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