Florida Beach Atlas

Nassau County Descriptions

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Munsell Color Classifications (pdf)

NA-01-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Very Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-12%; Fossils: Mollusks
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NA-01-B
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-03%; Fossils: Mollusks
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NA-01-MB
Sand; Yellowish Gray to Grayish Orange; Grain Size: Fine; Range: Fine to Granule; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-30%; Fossils: Mollusks, Barnacles
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NA-01-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-03%; Fossils: Mollusks
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NA-02-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-05%, Shell-02%
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NA-02-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Shell-08%; Fossils: Mollusks, Barnacles
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NA-02-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-03%
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NA-03-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Shell-05%; Fossils: Mollusks
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NA-03-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Granule; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-07%, Shell-05%; Fossils: Mollusks, Barnacles
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NA-03-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-10%; Fossils: Mollusks
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NA-04-SS
Sand; Yellowish Gray to Grayish Orange; Grain Size: Coarse; Range: Fine to Granule; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-30%; Fossils: Mollusks, Bryozoa, Barnacles; Phospatized Shell Fragments (Reworked?)
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NA-04-MB
Sand; Yellowish Gray; 40% Porosity: Intergranular, Possibly High Permeability; Grain Size: Coarse; Range: Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-<1%, Shell-25%; Fossils: Mollusks
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NA-04-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Granule; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-07%, Shell-10%
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NA-05-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-05%; Fossils: Mollusks
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NA-05-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Granule; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-<1%, Shell-10%; Fossils: Mollusks
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NA-05-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-03%; Fossils: Mollusks
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NA-06-SS
Sand; Yellowish Gray to Grayish Orange; Grain Size: Fine; Range: Fine to Very Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-<1%, Shell-30%; Fossils: Mollusks, Barnacles, Gastropods
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NA-06-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-06%, Shell-03%; Fossils: Mollusks;
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NA-06-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-07%, Shell-05%; Plant Remains-<1%; Fossils: Mollusks
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NA-07-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-05%, Shell-03%
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NA-07-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-05%; Fossils: Mollusks
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NA-07-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-10%; Fossils: Mollusks
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NA-08-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-05%, Heavy Minerals-01%; Fossils: Mollusks
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NA-08-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-03%, Heavy Minerals-05%; Fossils: Mollusks
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NA-08-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Rounded to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-04%, Heavy Minerals-05%; Fossils: Mollusks
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NA-09-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-02%; Trace of Shell Material
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NA-09-B
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-02%, Heavy Minerals-04%; Fossils: Mollusks; Clam Shells
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NA-09-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-05%, Heavy Minerals-04%; Fossils: Mollusks
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NA-09-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-05%, Heavy Minerals-03%; Fossils: Mollusks
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NA-10-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-03%, Heavy Minerals-01%; Fossils: Mollusks; Trace of Mica
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NA-10-B
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Coarse; Roundness: Sub-Angular to Sub-Rounded; Medium Sphericity; Unconsolidated; Accessory Minerals: Shell-02%, Heavy Minerals-04%
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NA-10-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-03%, Heavy Minerals-02%
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NA-10-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-04%, Heavy Minerals-03%; Fossils: Mollusks
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NA-11-SS
Sand; Yellowish Gray to Grayish Orange; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-20%, Heavy Minerals-02%; Fossils: Mollusks
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NA-11-B
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Medium Sphericity; Unconsolidated; Accessory Minerals: Shell-10%, Heavy Minerals-02%; Fossils: Mollusks
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NA-11-MB
Sand; Yellowish Gray to Grayish Orange; Grain Size: Medium; Range: Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-20%, Heavy Minerals-01%; Fossils: Mollusks
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NA-11-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-03%, Heavy Minerals-01%; Fossils: Mollusks
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NA-12-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-02%; Trace of Shell Material
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NA-12-B
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-10%, Heavy Minerals-02%; Fossils: Mollusks
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NA-12-MB
Sand; Yellowish Gray to Light Olive Gray; Grain Size: Fine; Range: Very Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Silt-02%, Shell-15%; Heavy Minerals-05%; Percent Silt Includes Silt and Clay; Trace of Mica
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NA-12-BB
Sand; Yellowish Gray to Grayish Brown; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Sub-Rounded; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-25%, Heavy Minerals-<1%; Fossils: Mollusks, Barnacles
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NA-13-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-01%; Trace of Shell Material
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NA-13-B
Sand; Yellowish Gray to Moderate Light Gray; Grain Size: Fine; Range: Very Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-35%, Heavy Minerals-01%; Fossils: Mollusks
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NA-13-MB
Sand; Yellowish Gray to Moderate Light Gray; Grain Size: Fine; Range: Very Fine to Very Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-30%, Heavy Minerals-01%; Fossils: Mollusks, Barnacles, Echinoids
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NA-13-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-08%, Heavy Minerals-03%; Fossils: Mollusks
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NA-14-SS
Sand; Yellowish Gray to Light Gray; Grain Size: Medium; Range: Fine to Very Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-15%, Heavy Minerals-02%; Fossils: Mollusks, Barnacles
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NA-14-B
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-08%, Heavy Minerals-02%; Fossils: Mollusks
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NA-14-MB
Sand; Yellowish Gray to Moderate Light Gray; Grain Size: Medium; Range: Very Fine to Granule; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-35%, Heavy Minerals-<1%; Fossils: Mollusks, Barnacles
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NA-14-BB
Sand; Very Light Orange; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell Material
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