Mineralised Collection

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Stephanopyxis sp. diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium morlandii diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Calcareous phytoplankton, SEM
Calcareous phytoplankton. Coloured scanning electron micrograph (SEM) of the external mineralised structures (coccospheres) of small marine algal organisms called coccolithophores

Fossilised diatoms, SEM

Petrified wood. Petrified tree logs from the Late Triassic Period (over 206 million years ago). Petrification is a term used to describe the fossilisation of wood

Pacific oyster (Crassostrea gigas). This oyster, which is edible, is native to the Pacific coasts of Asia. It has been introduced to other coastal areas worldwide

Dental filling polymerisation, artwork C014 / 2025
Dental filling polymerisation. Artwork of a cross-section of a human tooth, with a filling (white) being set using an ultraviolet light lamp tool

Whale bone tissue, light micrograph

Fossil shark tooth C002 / 2280
Fossil shark tooth (Carcharias vincentii). Example of the tooth of this Eocene (60mya - 32mya) shark which is related to modern day Grey Nurse Sharks

Fossil diatom, light micrograph C016 / 8603
Fossil diatom. Darkfield illuminated light micrograph of a fossilised diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Fossil diatom, light micrograph C016 / 8586
Fossil diatom. Interphase contrast light micrograph of a fossilised diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Fossil diatom, light micrograph C016 / 8583
Fossil diatom. Interphase contrast light micrograph of a fossilised diatom. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Native silver C013 / 6636
Native silver vein embedded in a rock. Sample of silver in a naturally occurring, wire-like form. This specimen was found in Kongsberg, Norway

Hamelin Pool Marine Nature Reserve, Shark Bay, Western Australia. This area is famous for its stromatolites, mineralised microbial communities formed from cyanobacteria (blue-green algae)

Conch shells

Tooth dentine, SEM
Tooth dentine. Coloured scanning electron micrograph (SEM) of dentine from a milk tooth. The bulk of a tooth is formed of dentine, a mineralised connective tissue with a similar composition to bone

Osteoblasts, TEM
Osteoblasts. Coloured transmission electron micrograph of osteoblasts, bone-producing cells (pink). They contain rough endoplasmic reticulum (RER, dark pink lines), which produces

Eroded sandstone potholes. These holes in the red sandstone rock are known as Bourkes Luck Potholes. They were carved out by erosion from sand and debris in the river over millions of years

Early stromatolites, artwork
Early stromatolites. Artwork of early stromatolites during a volcanic period. Stromatolites (boulder-like structures, lower frame) are an ancient form of life, dating back over 500 million years

Whale bone sample, light micrograph

Bone tissue, light micrograph

Fossilised pterosaur footprint. Fossilised remains of a footprint made by a Pterodactylus cerinensis pterosaur during the Jurassic period (around 200 to 145 million years ago)

Fossil diatoms, light micrograph. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Prehistoric perch fossil. Fossilised remains of a Priscacara liops fish from the Eocene epoch (around 56-34 million years ago). Found in the Green River formation, Wyoming, USA

Pacific oysters (Crassostrea gigas). This oyster, which is edible, is native to the Pacific coasts of Asia. It has been introduced to other coastal areas worldwide

Fossil fish, SEM
Fossil fish, coloured scanning electron micrograph (SEM). Fossils appear as rock slowly forms around objects buried in mud

Sea cucumber plate. Coloured scanning electron micrograph of an ossicle (plate, orange) from a sea cucumber, surrounded by diatoms

Selection of diatoms, SEM
Selection of diatoms, coloured scanning electron micrograph (SEM). Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Coscinodiscus diatom, SEM
Coscinodiscus diatom. Coloured scanning electron micrograph (SEM) of a Coscinodiscus diatom (red). This is a marine diatom

Silicoflagellate, SEM
Silicoflagellate. Coloured scanning electron micrograph (SEM) of the skeleton of a Dictyocha speculum silicoflagellate. Silicoflagellates are single-celled marine algae

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"Unveiling the Marvels of Mineralised Microcosms: Exploring Calcareous Phytoplankton and Diatoms through SEM" Step into a world unseen by the naked eye, where intricate structures and fascinating formations await. In this captivating journey, we delve into the realm wonders, starting with calcareous phytoplankton. Under the scanning electron microscope (SEM), these tiny organisms reveal their ornate shells, showcasing nature's artistry at its finest. Moving forward, our focus shifts to diatoms - another group of mesmerizing microorganisms. Their delicate frustules come alive under SEM's magnifying lens, unveiling intricate patterns that resemble miniature works of art. Each diatom species boasts its own unique design, leaving us in awe of their diversity and complexity. As we continue our exploration, fossilized diatoms take center stage. Preserved over time in sedimentary rocks, these ancient remnants offer glimpses into Earth's past ecosystems. Through SEM imaging techniques, we unravel their secrets and gain insights into prehistoric environments long gone. But minerals don't limit themselves to microscopic life forms alone; they also leave an indelible mark on petrified wood. Witnessing the transformation from organic matter to stone is truly remarkable as tree rings become infused with minerals over centuries or even millennia. Returning to diatoms once more – each new image captured by SEM reveals astonishing details previously unseen. The sheer variety in shape and structure continues to astound us as we uncover more hidden treasures within this diverse group of microalgae. Beyond natural phenomena lies unexpected beauty found in unlikely places - like Pacific oysters adorned with shimmering mineral deposits that enhance their already exquisite appearance. Lastly, stepping away from biological marvels for a moment brings us to dental filling polymerization artwork C014 / 2025 – a fusion of science and creativity showcased under SEM's watchful eye. This artistic representation captures the intricate process of dental filling polymerization, highlighting the intersection between science and art.