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Concretions, Thunder Eggs and Geodes
https://australian.museum/learn/minerals/shaping-earth/concretions-thunder-eggs-and-geodes/

Concretions are compact, often rounded, accumulations of mineral matter that form inside sedimentary rocks such as shale and sandstone or in soil.

Published 02 June 2009

geological processes geoscience earth earth sciences Earth and Environmental Science geology
Volcanic landforms
https://australian.museum/learn/minerals/shaping-earth/volcanic-landforms/

Each type of volcanic massif (structure) contains lavas, pyroclastic rocks and intrusions, but these differ in proportions and compositions.

Published 11 February 2009

volcano geoscience geological processes earth sciences Earth and Environmental Science
Magma
https://australian.museum/learn/minerals/shaping-earth/magma/

Magma is hot molten mobile rock. Igneous rocks form when magma cools and solidifies. Magmas come out of active volcanoes as lavas.

Published 11 February 2009

geological processes geoscience earth earth sciences Earth and Environmental Science geology
Volcanic rocks
https://australian.museum/learn/minerals/shaping-earth/volcanic-rocks/

Volcanic rocks are divided into three main types: basaltic, volcaniclastic and pyroclastic.

Published 11 February 2009

volcano geological processes geoscience earth sciences Earth and Environmental Science geology
Tektites
https://australian.museum/learn/minerals/shaping-earth/tektites/

Tektites are small, pebble-like glassy objects of Earth material that have been melted by meteorite impact, splashed up into our atmosphere, and fallen to Earth again under gravity.

Published 24 December 2009

space geoscience meteorite earth earth sciences Earth and Environmental Science
Igneous intrusions
https://australian.museum/learn/minerals/shaping-earth/igneous-intrusions/

Molten magma can invade the Earth's upper layers and then solidify as igneous intrusions.

Published 11 February 2009

geological processes geoscience earth sciences Earth and Environmental Science geology
Quartz
https://australian.museum/learn/minerals/gemstones/quartz/

Quartz is the most common mineral, present in a wide range of rocks and gemstones.

Published 15 February 2017

gem gemstone geoscience minerals
Labradorite
https://australian.museum/learn/minerals/gemstones/labradorite/

Facts about Labradorite

Published 12 September 2012

gem gemstone geoscience minerals
Rhodonite
https://australian.museum/learn/minerals/gemstones/rhodonite/

Facts about Rhodonite.

Published 12 September 2012

gem gemstone geoscience minerals
Fluorite
https://australian.museum/learn/minerals/gemstones/fluorite/

Facts about Fluorite.

Published 12 September 2012

gem geoscience minerals Gems gemstone

Bilas: Body Adornment from Papua New Guinea

Witness the beauty and diversity of cultural decoration and body adornment from Papua New Guinea in this special exhibition at the Australian Museum in Sydney.

Featuring photographs by Wylda Bayrón.

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Ramses & the Gold of the Pharaohs

Exclusive to the Australian Museum in Sydney: more than 3,000 years in the making, discover over 180 ancient Egyptian treasures.

Special exhibition opens 18 November 2023

Find out more
School programs and excursions

Book school excursions at the Australian Museum, Sydney, that inspire and engage students of all ages.

Virtual excursions
Educator-led tours

Book now
Burra

Be transported on an immersive journey through the eyes of burra (eel) in the Australian Museum’s new learning and play space.

Permanent education space
Open daily

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