
Istrian stone, ''pietra d'Istria'', the characteristic group of
building stones in the architecture of
Venice
Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 bridges. The isla ...
,
Istria
Istria ( ; Croatian and Slovene: ; ist, Eîstria; Istro-Romanian, Italian and Venetian: ; formerly in Latin and in Ancient Greek) is the largest peninsula within the Adriatic Sea. The peninsula is located at the head of the Adriatic betwee ...
and
Dalmatia
Dalmatia (; hr, Dalmacija ; it, Dalmazia; see names in other languages) is one of the four historical regions of Croatia, alongside Croatia proper, Slavonia, and Istria. Dalmatia is a narrow belt of the east shore of the Adriatic Sea, stre ...
, is a dense type of impermeable
limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms wh ...
s that was quarried in
Istria
Istria ( ; Croatian and Slovene: ; ist, Eîstria; Istro-Romanian, Italian and Venetian: ; formerly in Latin and in Ancient Greek) is the largest peninsula within the Adriatic Sea. The peninsula is located at the head of the Adriatic betwee ...
, nowadays
Croatia
, image_flag = Flag of Croatia.svg
, image_coat = Coat of arms of Croatia.svg
, anthem = "Lijepa naša domovino"("Our Beautiful Homeland")
, image_map =
, map_caption =
, capit ...
; between
Portorož
Portorož (; it, Portorose) is a Slovenian Adriatic seaside resort and spa town located in the Municipality of Piran in southwestern Slovenia. Its modern development began in the late 19th century with the vogue for the first health resorts. In ...
and
Pula
Pula (; also known as Pola, it, Pola , hu, Pòla, Venetian; ''Pola''; Istriot: ''Puola'', Slovene: ''Pulj'') is the largest city in Istria County, Croatia, and the seventh-largest city in the country, situated at the southern tip of the ...
. Limestone is a biogenetic stone composed of
calcium carbonate from the tests and shells of marine creatures laid down over eons. Istrian stone approaches the compressive strength and density of
marble
Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite. Marble is typically not foliated (layered), although there are exceptions. In geology, the term ''marble'' refers to metamorpho ...
, which is
metamorphosed limestone. It is often loosely referred to as "marble", which is not strictly correct.

Venice, isolated in its lagoon, had no building stone at hand. The freshly quarried stone is salt-white or light yellowish, which weathers to a pale gray; the whiteness of Istrian stone contrasts well with coloured stones and brick. When Francesco, son of the architect
Jacopo Sansovino, wrote ''Venetia citta nobilissima et singolare'' (1580) he emphasized the distinctive quality that Istrian stone and the coppery-red Verona ''brocatello'' limestone (so-called ''
Veronese marble'') lent to the city.
[Paul Hills, ''Venetian Colour: marble, mosaic, painting and glass, 1250-1550'', 1999:65] It was brought, Sansovino said, from
Rovigno and
Brioni on the Istrian coast.
Notes
{{reflist
See also
*
List of types of limestone
This is a list of types of limestone arranged according to location. It includes both formal stratigraphic unit names and less formal designations.
Africa Egypt
* Tura limestone, used for the Great Pyramid casing stones
* Mokattam limestone; ...
External links
Dean Krmac: La pietra d'Istria e Venezia.(ital.)
Comune di Grisignana d'Istria (Grožnjan)(ital.)
Limestone