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Cervantite with Stibnite Pseudomorphs

The Mineral cervantite




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
Composition Antimony Oxide
Color Yellow, beige, cream, orange, brown
Streak Light yellow to white
Hardness 4 - 5
Crystal System Orthorhombic
Crystal Forms
and Aggregates		 As tiny acicular groupings and balls, encrusting, massive, and as well-formed pseudomorphs after Stibnite.
Transparency Transparent to opaque
Specific Gravity 6.6 - 6.7
Luster Dull
Cleavage 1,1
Fracture Conchoidal
Tenacity Brittle
In Group Oxides; Simple Oxides
Striking Features Association with Stibnite and earthy habit.
Environment In secondary Stibnite hydrothermal deposits.
Rock Type Sedimentary, Metamorphic
Popularity (1-4) 4
Prevalence (1-3) 3
Demand (1-3) 3


Cervantite AUCTIONS

POLYMORPHS
Clinocervantite



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
 
ADDITIONAL RESOURCES
 
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