Mineral Name Creedite
First Discovered 1916
Nickel-Strunz Classification 03.CG.15
Dana Classification 12.01.04.01
ICSD 31248
Mineral Group Halides

 

Creedite is a calcium aluminium sulfate fluoro hydroxide mineral which was named after the location where it was discovered in 1916. Creedite was found in the Colorado Fluorspar Mine at Wagon Wheel Gap, located at Creede Quadrangle, Mineral County, Colorado. Creedite was later found in other fluorite veins near Tonopah, Nye County, Nevada; in the Grand Reef mine, Graham County, Arizona; in the Darwin district, Inyo County, California. It also occurs in the Potosi and other mines of Santa Eulalia, Chihuahua, Mexico. It is also found in La Paz, Bolivia; Pamir Mountains, Tajikistan and Dzhezkazgan, Kazakhstan.

Within the metaphysical realm of minerals, Creedite is apprently excellent to use if the believer needs clarity to express the spiritual realm in their life. It enhances spirituality and is a tool to be used in channeling meditation to provide clarity in the verbalization of messages they receive. A great mineral to have if the believer has trouble communicating spiritual ideas and concepts to others. It helps to provide a driving force towards goals, promotes insight into obstructions, and initiates the wisdom to circumvent or the ability to penetrate the obstacle involved.

Please note that MIROFOSS does not suggest in any way that minerals should be used in place of proper medical and psychological care. This information is provided here as a reference only.

Creedite is mainly used as a collectors mineral and does not have any known industrial uses.

Creedite is an uncommon mineral found in the upper portions of a fluorite-baryte vein.

Creedite is a rare hydroxylhalide mineral. Creedite usually forms from the oxidation of fluorite ore deposits. Creedite typically occurs with low-grade metamorphic rocks on a fluorite – calcite – quartz matrix or on a sulfide-matrix with its oxidized products. Creedite also occurs in skarn formation which usually has an association with sulfides. Generally, creedite is found as two to three millimeter radial aggregates and less commonly as a single prismatic crystals up to one millimeter long.

Cleavage Perfect
Colour(s) Colourless, Violet, Orange, White
Specific Gravity 2.71
Diaphaneity Transparent to Translucent
Fracture Conchoidal
Mohs Hardness 3.5
Luminescence Non-fluorescent
Luster Vitreous
Streak White
Habit(s) Granular to Prismatic to Radial
Radioactivity Non-radioactive
Magnetism Non-magnetic

No known health risks have been associated with creedite. However ingestion of creedite, as with other naturally occurring minerals, is not recommended.

The following image shows the Elemental breakdown of the mineral creedite along with the mineral crystal structure.

Crystal System Monoclinic
Class Prismatic
Axial Ratios a : b : c = 1.5046 : 1 : 1.655
Optical Data Type Biaxial (-)
Pleochroism (x) None
Pleochroism (y) None
RL Values nα = 1.461 nβ = 1.478 nγ = 1.485
2V Measured: 57° , Calculated: 54°
Max Birefringence δ = 0.024 (See colour chart at right)
Surface Relief Moderate
Dispersion r > v strong
Notes:  
   

Creedite can be referenced in certain current and historical texts under the following name:

The mineral creedite can be translated into the following select languages:

Arabic   Bulgarian   Chinese (Sim) 铬铅矿
Croatian   Czech   Danish  
Dutch Creediet Esperanto   Estonian  
Finnish   French   German Creedit
Greek   Hebrew   Hungarian  
Italian   Japanese クルイダイト Korean 크랻아읻
Latin   Lithuanian   Norwegian  
Persian   Polish   Portuguese  
Romanian   Russian Кридит Slovak  
Spanish Creedita Swedish   Tagalog  
Turkish Kredit Ukrainian Крідіта Vietnamese  

Creedite can be found in a few places around the world. The map below shows major documented concentrations of creedite:

The MIROFOSS database offers free printable geological identification tags for personal and non-profit use. These tags can be used to properly identify mineral samples in your collection. -Click here- to download a full size jpeg image for an aluminum identification tag; which can be printed on paper or used with a plastic laser printer.

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Chemical Composistion Foshag (1922) Proceedings of the U.S. National Museum: 59: 419.
History American Mineralogist (1932): 17: 75.
History Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 129-130.
History Robert Cook (2008) Connoisseur's Choice Creedite Cresson Mine, Cripple Creek, Teller County, Colorado. Rocks & Minerals 81:5 422-426
Geograpcial Data Mindat.org. Retrieved on 2012-06-18
Physical Identification Webmineral.com. Retrieved on 2012-06-18.
June 24, 2014 The last time this page was updated
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