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Reddish Stains on White Marble Floor Tile

Project Experience: Reddish Stains on Mable Tile


Subject Reddish Stains on White Marble Floor Tile
A large beachfront resort recently installed expensive white marble floor tiles in several of their units as part of a renovation. Over time, large reddish stains began to appear on many of the white tiles especially those in high foot traffic areas. The custodial services at the resort were not able to remove the stains and thus contacted EMSL for the cause and solution to this problem. Upon through examination of the tiles with and without the reddish stain, polarized light microscopy and electron microscopy revealed the presence of fine crystals of pyrite present only in the tiles with the reddish stains. EMSL surmised that as the guests of the resort tracked in seawater, the salts reacted with the iron in the pyrite and thus produced the reddish color. EMSL not only showed the resort how to avoid this problem, but also showed the tile manufacturer how to screen their tiles for this.
Atlanta, GA (LAB 07) - Lab ID 100662Beltsville, MD (LAB 19) - Lab ID 102891Boston, MA (LAB 13) - Lab ID 180179Buffalo, NY (LAB 14) - Lab ID 288166Carle Place, NY (LAB 06) - Lab ID 102344Charlotte, NC (LAB 41) - Lab ID 192283Chicago, IL (LAB 26) - Lab ID 102992Cinnaminson, NJ (LAB List in Description) - Lab ID 100194Dallas, TX (LAB 11) - Lab ID 223278Denver, CO (LAB 22) - Lab ID 189946EMSL Canada - Toronto, ON (LAB 55) - Lab ID 196142Fort Lauderdale, FL (LAB 56) - Lab ID 102794Houston, TX (LAB 15) - Lab ID 102575Huntington Beach, CA (LAB 33) - Lab ID 101650Indianapolis, IN (LAB 16) - Lab ID 157245Long Island City, NY (LAB 03) - Lab ID 102581Meriden, CT (LAB 24) - Lab ID 165118Miami, FL (LAB 17) - Lab ID 102813Minneapolis, MN (LAB 35) - Lab ID 101103Ontario, California (San Bernadino County / Inland Empire) (LAB 71) - Lab ID 283364Orlando, FL (LAB 34) - Lab ID 163563Phoenix, AZ (LAB 12) - Lab ID 189631Piscataway, NJ (LAB 05) - Lab ID 167035Plymouth Meeting, PA (LAB 18) - Lab ID 178659Raleigh, NC (LAB 29) - Lab ID 173741Rochester, NY (LAB 53) - Lab ID 284534San Leandro, CA (LAB 09) - Lab ID 101748Seattle, WA (LAB 51) - Lab ID 167337South Pasadena, CA (LAB 32) - Lab ID 102814
Beltsville, MD (LAB 19) - Lab ID 102891Boston, MA (LAB 13) - Lab ID 180179Carle Place, NY (LAB 06) - Lab ID 102344Charlotte, NC (LAB 41) - Lab ID 192283Chicago, IL (LAB 26) - Lab ID 102992Cinnaminson, NJ (LAB List in Description) - Lab ID 100194EMSL Canada - Toronto, ON (LAB 55) - Lab ID 196142Huntington Beach, CA (LAB 33) - Lab ID 101650Indianapolis, IN (LAB 16) - Lab ID 157245Long Island City, NY (LAB 03) - Lab ID 102581Minneapolis, MN (LAB 35) - Lab ID 101103Orlando, FL (LAB 34) - Lab ID 163563Plymouth Meeting, PA (LAB 18) - Lab ID 178659San Leandro, CA (LAB 09) - Lab ID 101748South Pasadena, CA (LAB 32) - Lab ID 102814St. Louis, MO (LAB 39) - Lab ID 102636
Carle Place, NY (LAB 06) - Lab ID 102344Charlotte, NC (LAB 41) - Lab ID 192283Chicago, IL (LAB 26) - Lab ID 102992Cinnaminson, NJ (LAB List in Description) - Lab ID 100194EMSL Canada - Toronto, ON (LAB 55) - Lab ID 196142Houston, TX (LAB 15) - Lab ID 102575Huntington Beach, CA (LAB 33) - Lab ID 101650Indianapolis, IN (LAB 16) - Lab ID 157245Kernersville, NC (LAB 02) - Lab ID 102564Minneapolis, MN (LAB 35) - Lab ID 101103Orlando, FL (LAB 34) - Lab ID 163563San Leandro, CA (LAB 09) - Lab ID 101748St. Louis, MO (LAB 39) - Lab ID 102636
Atlanta, GA (LAB 07) - NVLAP Lab Code 101048-1Baton Rouge, LA (LAB 25) - NVLAP Lab Code 200375-0Beltsville, MD (LAB 19) - NVLAP Lab Code 200293-0Boston, MA (LAB 13) - NVLAP Lab Code 101147-0Buffalo, NY (LAB 14) - NVLAP Lab Code 200056-0Carle Place, NY (LAB 06) - NVLAP Lab Code 101048-10Charlotte, NC (LAB 41) - NVLAP Lab Code 200841-0Chicago, IL (LAB 26) - NVLAP Lab Code 200399-0Cinnaminson, NJ (LAB List in Description) - NVLAP Lab Code 101048-0Dallas, TX (LAB 11) - NVLAP Lab Code 600111-0Denver, CO (LAB 22) - NVLAP Lab Code 200828-0EMSL Canada - Calgary, AB (LAB 65) - NVLAP Lab Code 500100-0EMSL Canada - Edmonton, AB (LAB 50) - NVLAP Lab Code 600321-0EMSL Canada - Markham, ON (LAB 66) - NVLAP Lab Code 600317-0EMSL Canada - Montreal, QC (LAB 68) - NVLAP Lab Code 201052-0EMSL Canada - Ottawa, ON (LAB 67) - NVLAP Lab Code 201040-0EMSL Canada - Toronto, ON (LAB 55) - NVLAP Lab Code 200877-0EMSL Canada - Vancouver, BC (LAB 69) - NVLAP Lab Code 201068-0Fort Lauderdale, FL (LAB 56) - NVLAP Lab Code 500085-0Houston, TX (LAB 15) - NVLAP Lab Code 102106-0Huntington Beach, CA (LAB 33) - NVLAP Lab Code 101384-0Indianapolis, IN (LAB 16) - NVLAP Lab Code 200188-0Kernersville, NC (LAB 02) - NVLAP Lab Code 102104-0Long Island City, NY (LAB 03) - NVLAP Lab Code 101048-9Meriden, CT (LAB 24) - NVLAP Lab Code 200700-0Miami, FL (LAB 17) - NVLAP Lab Code 200204-0Minneapolis, MN (LAB 35) - NVLAP Lab Code 200019-0Ontario, California (San Bernadino County / Inland Empire) (LAB 71) - NVLAP Lab Code 600239-0Orlando, FL (LAB 34) - NVLAP Lab Code 101151-0Phoenix, AZ (LAB 12) - NVLAP Lab Code 200811-0Piscataway, NJ (LAB 05) - NVLAP Lab Code 101048-2Plymouth Meeting, PA (LAB 18) - NVLAP Lab Code 200699-0Raleigh, NC (LAB 29) - NVLAP Lab Code 200671-0Rochester, NY (LAB 53) - NVLAP Lab Code 600183-0San Diego, CA (LAB 43) - NVLAP Lab Code 200855-0San Leandro, CA (LAB 09) - NVLAP Lab Code 101048-3Santa Clara, CA (LAB 47) - NVLAP Lab Code 600318-0Seattle, WA (LAB 51) - NVLAP Lab Code 200613-0South Pasadena, CA (LAB 32) - NVLAP Lab Code 200232-0South Portland, ME (LAB 62) - NVLAP Lab Code 500094-0St. Louis, MO (LAB 39) - NVLAP Lab Code 200742-0Tampa, FL (LAB 93) - NVLAP Lab Code 600215-0
EMSL Canada - Calgary, AB (LAB 65) - Lab ID 1003942EMSL Canada - Ottawa, ON (LAB 67) - Lab ID 1003965EMSL Canada - Vancouver, BC (LAB 69) - Lab ID 1003998
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Atlanta, GA (LAB 07) - Lab ID CertificateBeltsville, MD (LAB 19) - Lab ID CertificateBuffalo, NY (LAB 14) - Lab ID CertificateCarle Place, NY (LAB 06) - Lab ID CertificateChicago, IL (LAB 26) - Lab ID CertificateCinnaminson, NJ (LAB List in Description) - Lab ID CertificateDallas, TX (LAB 11) - Lab ID CertificateEMSL Canada - Toronto, ON (LAB 55) - Lab ID CertificateHouston, TX (LAB 15) - Lab ID CertificateHuntington Beach, CA (LAB 33) - Lab ID CertificateIndianapolis, IN (LAB 16) - Lab ID CertificateLong Island City, NY (LAB 03) - Lab ID CertificateMeriden, CT (LAB 24) - Lab ID CertificateMiami, FL (LAB 17) - Lab ID CertificateMinneapolis, MN (LAB 35) - Lab ID CertificateOrlando, FL (LAB 34) - Lab ID CertificatePhoenix, AZ (LAB 12) - Lab ID CertificatePiscataway, NJ (LAB 05) - Lab ID CertificateRaleigh, NC (LAB 29) - Lab ID CertificateSan Diego, CA (LAB 43) - Lab ID CertificateSan Leandro, CA (LAB 09) - Lab ID CertificateSouth Pasadena, CA (LAB 32) - Lab ID Certificate

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