Traonyx: reading travertine and onyx
In Reza Molai’s guide, Traonyx names the commercial category. USGS references provide geological context for travertine and calcareous onyx, including crystalline structures and layering.
Read article ↗Guide to Iranian materials
Traonyx: areas of origin, materials and further reading.
Yazd
Three localities identified by Reza Molai for exploring Iranian traonyx.
Area and origin
Yazd is one of the areas identified by Reza Molai for the Traonyx route. The geographical reference covers the province; the map point marks its capital. Quarry, selection and individual block origin will be documented in the relevant material record.
- Locality
- Yazd
- Province / area
- Yazd
- Family
- Traonyx
Quarries and materials in this area
Individual quarry names, selections and photographs will be associated with materials of confirmed origin. The locality is not treated as the name of one single quarry.
Articles and further reading
Layers, texture and translucency
USGS describes calcareous onyx as a dense crystalline carbonate, generally translucent and layered. This provides a useful reference for observing stone.
Read article ↗Durability: what studies tell us
A study of samples from Iranian quarries compares travertine and onyx travertine under magnesium sulfate crystallization tests.
Read article ↗