 |
Chemical Formula | AsSb |
|
Composition | A mixture of arsenic and antimony |
|
Color | Tin-white to gray |
|
Streak | Dark gray |
|
Hardness | 3 - 4 |
|
Crystal Forms and Aggregates |
(Hexagonal) Usually occurs massive, but tiny, microcrystalline plates and pseudocubes also occur. |
|
Transparency | Opaque |
|
Specific Gravity | 6 |
|
Luster | Metallic |
|
Cleavage | 1,1 - basal. Cleavage is rarely seen since crystals are rarely seen. |
|
Fracture | Uneven |
|
Tenacity | Brittle |
|
Other ID Marks | Oxidizes and to a dark gray |
|
Other Names | Stibarsen was previously classified as a variety of Allemontite, and was known as Allemontite II. |
|
Varieties |  Allemontite - Any mixture
of arsenic and antimony, including Stibarsen.
(Allemontite is not scientifically recognized as a
mineral species) Allemontite
I - Allemontite with a greater content of
antimony than arsenic Allemontite
II - Stibarsen. The quantity of antimony and
arsenic is equal Allemontite
III - Allemontite with a greater content of
arsenic than antimony Note: Any mixture of arsenic and antimony that constitutes 80 percent or more of the composition is classified under the name of the element with the greater percentage. |
|
In Group | Native elements ; Metallic elements |
|
Striking Features | Tarnish, streak, and odor |
|
Popularity (1-4) | 4 |
|
Prevalence (1-3) | 3 |
|
Demand (1-3) | 2 |
|
Distinguishing Similar Minerals |
Antimony and Arsenic are indistinguishable from Allemontite / Stibarsen through common testing methods; the only way to distinguish them is through complex scientific tests. |
|
Commonly Occurs With |
Antimony, Arsenic, Siderite |
|
Noteworthy Localities |
Specimens have come from the Engineer mine, Atlin, British Columbia, Canada; from the Hemlo Gold deposit near Lake Superior in Ontario; Allemont and Chelenches (Dauphine), France; and Pribram, Bohemia, Czech Republic. |
|
Picture Icon Links |
Sorry. No Images currently available. |
|
Picture Links | Sorry. No Images currently available. |
