Iron staining on quartzite appears as orange, rust-colored, or brown discoloration that seems to originate from within the stone. Unlike surface rust caused by metal contact, iron staining develops when naturally occurring iron minerals inside the quartzite oxidize after exposure to moisture. What’s Happening Quartzite is primarily composed of quartz, but many varieties contain trace amounts…
Iron staining on terrazzo appears as orange, brown, or rust-colored discoloration that seems to originate from within the surface. Unlike surface rust caused by metal objects, iron staining results from internal oxidation within the terrazzo system. What’s Happening Terrazzo is made of decorative stone chips embedded in either a cement-based or epoxy binder. In some installations,…
Iron staining on limestone appears as orange, reddish, or brown discoloration that develops from within the stone. Unlike surface rust caused by metal contact, iron staining originates from naturally occurring iron deposits inside the limestone reacting to moisture. What’s Happening Limestone is composed primarily of calcium carbonate and often contains trace amounts of iron within its…
Iron staining on travertine appears as orange, reddish, or brown discoloration that develops from within the stone. Unlike surface rust caused by metal contact, iron staining originates from naturally occurring iron deposits inside the travertine reacting to moisture. What’s Happening Travertine is a porous, calcium-based natural stone formed by mineral deposits. Many varieties contain trace amounts…
Iron staining on marble appears as orange, brown, or rust-colored discoloration that seems to originate from within the stone. Unlike surface rust transfer, iron staining is caused by naturally occurring iron deposits inside the marble reacting to moisture. What’s Happening Many types of marble contain trace amounts of iron as part of their natural mineral composition….