01 / Geological family
Origin and composition
- Geological family
- Sedimentary
- Origin and composition
- Microcrystalline limestone with rudists
- Origin
- Lisbon and Sintra, Portugal
- Appearance and identification
- Ivory, with pink and yellow varieties
Sedimentary rocks form through accumulation, compaction and cementation of sediments, or precipitation of minerals. Sandstones, limestones and travertines belong to this broad family but have different compositions and structures. Visible bedding can influence slab design and cutting direction. Selection calls for attention to pores, cement, discontinuities and the specific product rather than assuming that every member behaves like one familiar stone.
02 / History and curiosities
History and curiosities
Belém Tower and the Jerónimos Monastery demonstrate its importance; the stone was also transported to Brazil.
03 / Applications and design
Applications and design
Documented uses include façades, floors, stairs and carved details.
Finishes and processes ↗04 / Technical interpretation
What to ask your supplier
Fossils and veins shape the pattern; retain the specific selection name in the order and design.
05 / Care and maintenance
Care and maintenance
Remove dust and grit with soft tools, wash with a compatible neutral cleaner, then rinse and dry. Identify composition before using stain or scale removers: carbonate stones are acid-sensitive. Test every treatment in an inconspicuous area. An impregnator can reduce absorption but does not make a material waterproof or stain-proof.
Thoughtful cleaning, protection and maintenance ↗06 / Photograph
Photo gallery
Photographic example: appearance and colour vary with quarry, batch, light and finish.
07 / Sources and further reading
