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Unique Identification: Erionite
Site name: Paleolake Idaho, ID
Light type: Plane-Polarized Light
Magnification: 630.0
Submitted by: Mark Shapley
Notes: Very fine fibrous bundles of erionite, formed diagenetically in a weathering volcaniclastic sandstone derived from basalts of the Snake Rive Plain, Idaho. Erionite in this form represents a potential inhalation hazard.
Image Tags: fibrous diagenetic acicular radial alteration
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Unique Identification: Erionite
Site name: Paleolake Idaho, ID
Light type: Plane-Polarized Light
Magnification: 630.0
Submitted by: Mark Shapley
Notes: The zeolite erionite forming a cement on feldspar silt grain.
Image Tags: fibrous diagenetic acicular radial alteration zeolite
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Unique Identification: Erionite
Site name: Paleolake Idaho, ID
Light type: Cross-Polarized Light
Magnification: 630.0
Submitted by: Mark Shapley
Notes: Cement-forming erionite in cross-polarized light, encrusting a feldspar grain. Highly birefringent acicular bundles in upper right are an unidentified accessory mineral.
Image Tags: fibrous diagenetic acicular radial alteration zeolite
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Unique Identification: Erionite
Site name: Paleolake Idaho, ID
Light type: Plane-Polarized Light
Magnification: 630.0
Submitted by: Mark Shapley
Notes: Erionite cement nadhering to a quartz grain.
Image Tags: fibrous diagenetic acicular radial alteration zeolite
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Unique Identification: Erionite
Site name: Paleolake Idaho, ID
Light type: Cross-Polarized Light
Magnification: 630.0
Submitted by: Mark Shapley
Notes: Erionite cement nadhering to a quartz grain.
Image Tags: fibrous diagenetic acicular radial alteration zeolite
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Unique Identification: Erionite
Site name: Paleolake Idaho
Light type: Scanning Electron Micrograph
Magnification: 2500.0
Submitted by: Mark Shapley
Notes: Radiating fibrous habit of erionite from altered mafic volcaniclastic rocks; apparent under petrographic scope only at high magnification. This zeolite-family mineral is recognized as an inhalation hazard.
Image Tags: SEM zeolite fibrous needle low_relief low_birefringence diagenetic radial volcanic_glass health_hazard alteration
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Unique Identification: Erionite
Site name: Paleolake Idaho
Light type: Scanning Electron Micrograph
Magnification: 1500.0
Submitted by: Mark Shapley
Notes: Radiating fibrous habit of erionite from altered mafic volcaniclastic rocks; apparent under petrographic scope only at high magnification. This zeolite-family mineral is recognized as an inhalation hazard.
Image Tags: SEM zeolite fibrous needle low_relief low_birefringence diagenetic radial volcanic_glass health_hazard alteration
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Unique Identification: Erionite
Site name: Paleolake Idaho
Light type: Scanning Electron Micrograph
Magnification: 1500.0
Submitted by: Mark Shapley
Notes: Radiating fibrous habit of erionite from altered mafic volcaniclastic rocks; apparent under petrographic scope only at high magnification. This zeolite-family mineral is recognized as an inhalation hazard.
Image Tags: SEM zeolite fibrous needle low_relief low_birefringence diagenetic radial volcanic_glass health_hazard alteration
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Unique Identification: Erionite
Site name: Paleolake Idaho
Light type: Scanning Electron Micrograph
Magnification: 2000.0
Submitted by: Mark Shapley
Notes: Radiating fibrous habit of erionite from altered mafic volcaniclastic rocks; apparent under petrographic scope only at high magnification. This zeolite-family mineral is recognized as an inhalation hazard.
Image Tags: SEM zeolite fibrous needle low_relief low_birefringence diagenetic radial volcanic_glass health_hazard alteration
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Unique Identification: Erionite
Site name: Paleolake Idaho
Light type: Scanning Electron Micrograph
Magnification: 7000.0
Submitted by: Mark Shapley
Notes: Radiating fibrous habit of erionite from altered mafic volcaniclastic rocks; apparent under petrographic scope only at high magnification. This zeolite-family mineral is recognized as an inhalation hazard. Note brittle fracture of individual fibers.
Image Tags: SEM zeolite fibrous needle low_relief low_birefringence diagenetic radial volcanic_glass health_hazard alteration
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Unique Identification: Erionite
Site name: Paleolake Idaho
Light type: Scanning Electron Micrograph
Magnification: 6000.0
Submitted by: Mark Shapley
Notes: Radiating fibrous habit of erionite from altered mafic volcaniclastic rocks; apparent under petrographic scope only at high magnification. This zeolite-family mineral is recognized as an inhalation hazard. Note brittle fracture of individual fibers.
Image Tags: SEM zeolite fibrous needle low_relief low_birefringence diagenetic radial volcanic_glass health_hazard alteration
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