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Geologic > Feldspar
The following information is about Feldspar.
Feldspar Defined
Family of silicate minerals containing varying amounts of potassium, sodium and calcium along with aluminum, silicon and oxygen. Potassium feldspars contain considerable potassium. Plagioclase feldspars contain considerable sodium and calcium. Feldspar crystals are stubby prisms, generally white, gray, or pink.
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Off-site Feldspar Links, User Submitted
The following links have been collected through user bookmark submission in the Feldspar category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
Sat Sep 20
- Luminescence dating applications in geomorphologic al research: Geological dating good to 800 ka (most reliable ~150 ka) using fluorescence of detrital quartz and feldspar grains. Fluorescence is a result of electronic dislocation in the tectosilicate crystalline structure, itself a result of radiation.
Thu Jul 10
- Granophyre - Wikipedia, the free encyclopedia: ... be similar to micrographic texture and to the coarser graphic intergrowths of quartz and alkali feldspar common in pegmatite. These textures document simultaneous crystallizatio n of quartz and feldspar fr
Mon May 5
- Larvikite - Wikipedia, the free encyclopedia: ... is probably a type of syenite, notable for the presence of handsome, thumbnail-size d crystals of feldspar, which are multiply-twinn ed on the micro-scale and shot through with small inclusions, giving its...
Sun Apr 27
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Wed Apr 23
Wed Mar 19
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Off-site Feldspar Research Links
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