Calcite/Travertine ("Onyx") Slabs from Arizona and New Mexico
Travertine cuts quickly and produces interesting stones. Travertine is often incorrectly called onyx, but it is not a true onyx, which is a form of chalcedony. These materials may have fractures, but usually they don’t cause problems when cutting. Polishing calcite and travertine is quick if you add a little vinegar to tin oxide. Green rouge (also known as Zam) provides a fine polish as well.
Ruler is in Inches.
Example of a Rainbow Calcite Cabochon
Showing all 4 results
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Slab1540 – Travertine (“Onyx”) Slab
1 slab parcel
Measures (approx) 5/16 to 7/32″ thick.
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Slab1542 – Travertine (“Onyx”) Slab
1 slab parcel
Measures (approx) 7/32 to 1/4″ thick.
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Slab1554 – Travertine (“Onyx”) Slabs
2 slab parcel
Measures (approx) 2 at 1/4″ thick.