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Microcline from
Petrick pegmatite, Kingsland Granite Company Quarry (Petrick Quarry), Llano Co., Texas, USA

Locality type:Pegmatite
Classification
Species:Microcline
Formula:K(AlSi3O8)
Comments:Crystals in pegmatite occur up to 40 cm, sometimes intergrown with orthoclase. These intergrowths display a bright blue schiller that when cabbed displays a blue "cat's eye" effect.
Luminescent properties:Vermillion-red (SW)
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Extremely common
Confirmation
Validity:Confirmed
Confirmation Methods:Visual (Fluorescence)
References
References:Self-collected by Franklin Roberts.; Arthur Smith, Frank Roberts, Denise Bicknell (2008) Mineral News, 24, #1, 6-7.
Associated Minerals Based on Photo Data:
Biotite9 photos of Microcline associated with Biotite at this locality.
Quartz6 photos of Microcline associated with Quartz at this locality.
Molybdenite3 photos of Microcline associated with Molybdenite at this locality.
Gadolinite3 photos of Microcline associated with Gadolinite at this locality.
Chlorophane3 photos of Microcline associated with Chlorophane at this locality.
Thorogummite2 photos of Microcline associated with Thorogummite at this locality.
Behoite2 photos of Microcline associated with Behoite at this locality.
Gadolinite-(Y)2 photos of Microcline associated with Gadolinite-(Y) at this locality.
Milky Quartz2 photos of Microcline associated with Milky Quartz at this locality.
Fluorite2 photos of Microcline associated with Fluorite at this locality.
Data
Mineral Data:Click here to view Microcline data
Locality Data:Click here to view Petrick pegmatite, Kingsland Granite Company Quarry (Petrick Quarry), Llano Co., Texas, USA
 
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