Where is Giallo Siena marble quarried?
Sovicille, in the province of Siena, Tuscany, Italy.
Answer
Is Giallo Siena marble natural or reconstituted?
The stone itself
Natural. The petrographic name is Marble under EN 12407, and the published record describes a medium-grained metamorphic lithotype formed from Jurassic calcareous sediment. Nothing on this site is reconstituted stone.
The figures
| Fact | Detail | Source |
|---|---|---|
| Petrographic name | Marble, EN 12407 | Published stone sheet |
| Classification | A medium-grained metamorphic lithotype, heterogeneous, with light yellow-reddish patches, fractures and slender sub-parallel veins | Published stone sheet |
| Microscopic description | A calcitic crystalloblastic lithotype with alternating phaneritic and aphanitic areas, quartz blasts along coarser veins, calcitic nodules, muscovite along veinlets | EN 12407 and EN 12670 |
| Formation | Jurassic calcareous sediment altered by pressure and heat | Published stone sheet |
Why this stone behaves this way
The classification is what a laboratory does to a specimen: composition, grain size, and the mineral assemblage. Giallo Siena marble is a calcitic rock with quartz and muscovite in a crystalline matrix, which is a description of a natural stone and not of a binder.
What these figures are, and what they are not The published descriptions are for the material. A certificate issued for the block being supplied describes that block.
Where these figures come from
- S1 granitalsiena.com — Giallo Siena marble technical sheet (EN standard test values; Politecnico di Torino marble laboratory)
- S6 StoneContact — Giallo Siena Unito and Broccatello di Siena entries, carrying Università di Pisa - Politecnico di Torino test values for the material
Where to go next
On the same subject
More questions about Giallo Siena marble
What other names does Giallo Siena marble go by?
Giallo Siena, Giallo di Siena, Giallo Siena Unito, Siena Gold, Golden Siena, Siena Giallo, Siena Yellow, Amarillo Siena and Giallo Sienna.
This answer sits on the The stone itself page, with the rest of the questions about it.
The stoneAsk for a price
A thickness, a format, a finish, a quantity and a destination will get you a quotation for Giallo Siena marble.
Is Giallo Siena marble natural or reconstituted?