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The inaugural meeting of the Gemmological Association of Australia (GAA) was held in the School of Arts Building, Pitt Street, Sydney on 29 October 1945. [1] [2]The Association was formed to promote the education of the science of gemmology and the study of gemstones as a safeguard to the public against spurious stones.
Petroglyph of male and female dancers, in Ku-ring-gai Chase National Park.. Sydney rock engravings, or Sydney rock art, are a form of Australian Aboriginal rock art in the sandstone around Sydney, New South Wales, Australia, that consist of carefully drawn images of people, animals, or symbols. [1]
Gem / Mineral Fossil Tartan [Note 1] Main article New South Wales: Coat of arms of New South Wales: Badge of New South Wales: Waratah: Kookaburra: Platypus: Eastern blue groper: Orta recens quam pura nites Newly risen how brightly you shine: Sky blue Black opal: Mandageria fairfaxir [1] New South Wales tartan: Symbols of New South Wales: Queensland
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In September 2011 the new name for the system was announced as 'Opal', chosen from a selection of 665 names. Transport for NSW said Opal was chosen because it was 'uniquely Australian', [13] short, and easy to say. As well as the opal being Australia's national gemstone, the black opal is the New South Wales gemstone symbol. [14]
Mining in Australia has long been a significant primary sector industry and contributor to the Australian economy by providing export income, royalty payments and employment. Historically, mining booms have also encouraged population growth via immigration to Australia , particularly the gold rushes of the 1850s.
Sydney is the capital city of the state of New South Wales and the most populous city in Australia.Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about 80 km (50 mi) from the Pacific Ocean in the east to the Blue Mountains in the west, and about 80 km (50 mi) from the Ku-ring-gai Chase National Park and the Hawkesbury River in the north and north-west ...
Argyle diamond mine The open pit of the Argyle diamond mine. A large mining truck is visible on the road for scale. Location Argyle Diamond Mine Location in Australia Location Lake Argyle State Western Australia Country Australia Coordinates 16°42′44″S 128°23′51″E / 16.71222°S 128.39750°E / -16.71222; 128.39750 Production Products Diamonds History Opened 1985 Closed ...