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Astrophyllite from
St Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA


Locality type:Dome
Classification
Species:Astrophyllite
Formula:K2NaFe72+Ti2[Si4O12]2O2(OH)4F
Comments:Purchased in April 2001 at "Spring Show of the Rockies" in Denver, Colorado, USA.
Habit:Blades to 15cm
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Prosopite
Associated Minerals Based on Photo Data:
Quartz15
Zircon7
- var Cyrtolite4
Pegmatite3
Riebeckite2
Murataite-(Y)2
Rutile1
Fluorite1
Thorite1
Microcline1
Data
Mineral Data:Click here to view Astrophyllite data
Locality Data:Click here to view St Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA
Photo GalleryView Gallery (23 photos)
Data Identifiers
Mindat Occurrence Record ID:28519
Long-form Identifier:1:3:28519:7
GUID (UUID V4):0
Localities for Astrophyllite in this Region
Eureka Tunnel (1-15 pegmatite), St Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA
Unnamed pegmatite, St Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA
Nearest other occurrences of Astrophyllite
0.1km (0.0 miles) Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA
0.8km (0.5 miles) Eureka Tunnel (1-15 pegmatite), St Peters Dome, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA
2.0km (1.2 miles) Hillside Park claims, Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA
2.2km (1.4 miles) Stove Mountain (Cookstove Mountain), El Paso County, Colorado, USA
2.8km (1.7 miles) Rosa No. 1 trench, Mount Rosa, El Paso County, Colorado, USA
3.2km (2.0 miles) Mount Rosa, El Paso County, Colorado, USA
3.3km (2.1 miles) Stove Mountain Mineral Locality (Cook Stove Mountain Mineral Locality), Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA
References
 
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