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The Mineral cervantite

Cervantite with Stibnite Pseudomorphs

Cervantite is a secondary mineral found in antimony deposits associated with Stibnite. It is usually dull and earthy, and frequently forms as a dull, crusty yellow replacement or coating over Stibnite. Cervantite is named after Cervantes, Spain where this mineral was first described.

Chemical Formula

Sb3+Sb5+O4

Color

Yellow, beige, cream, orange, brown

Crystal System

Orthorhombic

Properties

Streak
Light yellow to white
Hardness
4 - 5
Transparency
Transparent to opaque
Specific Gravity
6.6 - 6.7
Luster
Dull
Cleavage
1,1
Fracture
Conchoidal
Tenacity
Brittle

Crystal Habits

As tiny acicular groupings and balls, encrusting, massive, and as well-formed pseudomorphs after Stibnite.

Additional Information

Composition
Antimony Oxide
In Group
Oxides; Simple Oxides
Striking Features
Association with Stibnite and earthy habit.
Environment
In secondary Stibnite hydrothermal deposits.
Rock Type
Sedimentary, Metamorphic

Noteworthy Localities

Cervantite is found in many of the important Stibnite deposits, usually associated together with the Stibnite. Other occurrences are the Clara Mine, Rankach valley, Black Forest, Germany; the Le Cetine Mine, Chiusdino, Italy; and the Wells Fargo Mine, Deer Trail, Stevens Co., Washington.

Common Mineral Associations

Stibnite, Stibiconite, Calcite, Barite, Antimony, Valentinite

cervantite Photos



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