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WALK BACK ALONG HAY STREET TO CATHEDRAL The roof is Welsh slate. This was replaced with new slates in The pulpit was carved in England from Caen Stone. LEAVE THE CATHEDRAL BY THE MAIN ENTRANCE AND 20. Trinity Church. erth rocks AVENUE. TURN RIGHT AND WALK DOWN TO THE 2007. The columns supporting the roof in the Cathedral are WALK TO , CROSS OVER TO: The use of granite footings under a brick structure is clearly This is a Jurassic limestone quarried in Northern France. A ‘Walk-Through-Guided Tour’ outlining the diversity CATHEDRAL. NOTE THE IMPOSING BUILDINGS ON THE made from ‘bluestone.’ 16. Stirling Gardens. visible. In this case, it is quite a grand scale. It has been widely used in France and England in church rocks, stones and masonry materials used in many of RIGHT. THESE ARE THE OLD CENTRAL GOVERNMENT These are bounded by walls of Toodyay Stone. This is a basalt quarried in Victoria and used extensively for buildings, such as Canterbury Cathedral and the Norman This Church was designed by HS Trigg and built in 1893. our heritage locations. OFFICES. buildings in Melbourne during the late 19th century. parts of the Tower of London. This is a quartzite, a metamorphic rock The facia is a particularly decorative design referred to This trail is not intended as a comprehensive review of the composed of silica. This variety is easily ‘American Romanesque’. Another of his designs can be seen urban geology of the City of in its widest sense. Whilst 15. St Georges Cathedral. The font made from Donnybrook sandstone in 1930, is another The main Altar is white sandstone with marble panels. cleaved along a planar structure. The green in adjacent to McNess Royal Arcade. concentrating on the use of locally occurring rock used in The present cathedral was started in 1879 and contains example of how well it can be carved. The Soldiers Chapel on the north side of the Altar is built from colour on the exposed surfaces is not algae. the construction and decoration of the inner City, this guide many materials of geological interest. The footings are Tamala brick and Donnybrook Sandstone. The window and door framings are from rock quarried on It is a mineral called fuchsite. also includes reference to the use of some geologically limestone. WALK UP THE SLOPE ALONGSIDE THE CHURCH, AND Rottnest Island. interesting stone. Built of locally made brick, the clay used was from what is 17. 41- 43 St Georges Terrace (Suncorp Bank) CHURCH HALL THROUGH THE TRINITY ARCADE BACK Geologists refer to three families of rock. now Queens Gardens. The exterior facing to the upper and lower fl oors is a Marble. TO HAY STREET. TURN LEFT, CROSS OVER AND WALK 1. Igneous rocks were formed through the cooling of THROUGH THE PICCADILLY ARCADE. This is a medium grained Italian marble molten rock that exists below the surface of the Earth. Rock 1 Panels of a white marble are used for which cooled slowly shows large crystals 2 3 detailing and show evidence of sedimentary of minerals as seen in granite; quickly deposition. cooled rocks, such as lava fl ows on land, show limited crystal development - basalt, 4 18. 45 St Georges Terrace. for example. 5 This building has two interesting stones, one interior and the 2. Sedimentary rocks are the product of erosion and other, exterior. weathering of all other kinds of rock, 7 which are then transported to where they 6 The interior fl oor and exterior steps are York settle and undergo lithifi cation to become 21 Stone granite. But the walls are a coarse rock once more. Common examples are 8 grained marble from Wombeyan 9 sandstones and limestones. in NSW, some 40km south west of Sydney. 21. Piccadilly Arcade. 10 3. Metamorphic rocks are formed when rocks deeply Originally built in 1938, Piccadilly Arcade buried in the Earth’s crust are subjected 13 19. Allendale Square. was refurbished duriung 1984. Note the ‘Black Granite’ structures outside. Inside, the ground to high temperatures and / or pressures. 14 12 The fl oor and lower shop fronts are 20 fl oor and wall facings are West Australian Marble from the Pilbara They undergo a change in physical form. 11 made from a pink and grey marble region 1200km north of Perth, approximately the same latitude as Often, new types of mineral are developed imported from Portugal. 19 15 Exmouth. in the process. Common examples are slate and marble. This Pilbara stone is known as Nanutarra marble, When considering the geology of buildings, there are two 18 which is dolomitic in nature, (a limestone rich in 17 main uses of rock: construction and decoration. Magnesium) and shows many characteristics of 16 All rock used in a building, for whichever purpose, limestone structures. is referred to as dimension stone. A future for our past Proudly supported by TSP 15223 For more information, visit www.heritageperth.com q q q q q q q q q q q q q q q q q q qq q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q

FORREST PLACE 3. The Water Feature, Forrest Place. 7. Chilliz (Donegal Building). 10. Government Stores. This is a metamorphosed granite The sphere of rock rotating on its This shop has a limestone facing. The former Perth Government Stores was built in 1911 from from the east of Western Australia 1. Commonwealth Bank and General Post Offi ce plinth is made of an orbicular granite A number of fossils, mainly shell Donnybrook sandstone to the ground fl oor and brick above in the Fraser Range called Verde Buildings. from Boogardie near Mount Magnet on fragments, can be seen. An interesting feature of the sandstone Austral. It has also been used Built in the early 1920s, these two buildings are constructed the Meekathara Road. The Boogardie is that the lower courses show the extensively for paving in Martins of two different rock types. The ground fl oor is constructed orbicular granite is nearly 2700 million years old and has 8. HBF Building. hammer marks where a mason has Place, and the Olympic Games from Mahogany Creek granite and the upper is Donnybrook spherical structures crystallized from magma. The building is faced with ‘York Granite.’ The interior is also hand- fi nished the blocks. venues in Sydney. It can also be sandstone. lined and paved with York Granite. seen on the concourse of Perth 4. The lift shafts on the east side. This was quarried at the CROSS OVER MURRAY STREET. Concert Hall. The centre panels are These have a thin facing of Donnybrook sandstone. a garnet gneiss called ‘Garnet Ice,’ Gwambygine quarry which is 11. Number One Fire Station. 12. Young Australia League Entrance. which clearly shows the banding The grain and bands of darker material 9km south-east of York on the Great This is the fi rst building on the trail that is built from Tamala This entrance is framed by Donnybrook sandstone with two are clearly visible. The principal cements Southern highway. Operations limestone, the most common stone used in the Perth region. Heritage Perth would like to thank Norman Harrison for devising this trail and writing large columns. are from clay minerals. The bands were ceased in 1996. It is a grey background interspersed with pale the text.. © Heritage Perth 2011. produced when the rock was saturated with pink potassium feldspar crystals. Look for the black xenoliths (rock The YAL was founded by J.J.Simons in 1905, initially to water and the darker minerals leached in. fragments enveloped in the mother rock) scattered throughout. promote AFL football. Simons was a passionate Australian and devoted his life promoting all things Australian and youth WALK ALONG MURRAY STREET PAST MYERS 9. Government Printing Offi ce. in particular. The foundation stone was laid in 1922 and This is the fi rst of several buildings built of brick. Many 5. City Central. the building opened in 1924. He founded the fi eld centre at of the 19th and 20th century buildings that remain, were Whilst not strictly heritage, this building Araluen that later became the Botanical Gardens. built similarly. The bricks used in the older buildings were has interesting facing stones. The U 9 made within the City. Built between 1894 and 1922, the nde 186 dominant stone is maroon coloured. r construction original building was completed in 1894, with a third fl oor 13. Public Health Building, 57 Murray Street. Mahogany Creek quarry was situated just off the Great Built in 1912, this is another example of the use This is probably a pillow lava breccia (a rock composed of added in 1907 and a fourth during 1922. Eastern highway 30 km east of Perth 2km from the town. of Donnybrook sandstone facing to produce a broken fragments). This is an obducted (raised up) section of The four storey corner building was constructed of load bearing It was abandoned in the 1930s. The granite is very even beautiful building. The carved swan in the apex sea fl oor where the pillow lavas have been broken up in the brick and features projecting corner towers. The ground fl oor grained. The overall impression is a white to grey colour with In geological terms, Tamala limestone is very young. of the roof above the main door is an example process. Other stones are pale granite and migmatite. bricks have a roughened surface known as a ‘rusticated’ black spots. It shows no sign of weathering. It occurs from Albany in the South to Shark Bay in the North of how good the stone is for such work. fi nish. The walls are solid brick with no cavity. Curtin University Donnybrook stone quarry is situated 180 km south of Perth along the coast. Hence its name - the ‘coastal limestone.’ 6. David Jones Store. restored and refurbished the building in 2002. about 4 km south of the town. There are still fi ve quarries It is an aeoliancal carenite and is made of beach sand rich in The store is faced with a limestone showing stylolites. WALK SOUTH DOWN PIER STREET AND TURN RIGHT INTO operating in the Donnybrook area. The stone ranges from carbonate, carried by winds and deposited as dunes which These are structures where a contact is marked by an irregular line HAY STREET TO THE TOWN HALL. very fi ne grained white to a coarser grained mid-brown have been lithifi ed (cemented into a rock) by percolating resembling a suture. They are believed coloured rock. rainwater. It was formed in the interglacial periods 400,000 14. Town Hall. to have been made by movement years ago when the Earth was warm and sea level high. This was one of the major building projects undertaken by the under pressure at the time the rock 2. The Plinths in Forrest Place. These periods, (the earth is currently in such a period), fi rst convicts who arrived in 1850. It is essentially a brick built was forming. They are nearly always These are mostly composed of a range of granites, generally last about 20,000 years. The stone varies in quality, structure made from locally sourced materials. The materials associated with carbonate rocks. predominantly York Granite (see 8 below). tends to be an open texture and prone to weathering. used for the ground fl oor are of geological interest.