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Talc
Birthstone Series: SardonyxA specimen of Sardonyx, a variety of quartz, from the Natural History Museum, London. Sardonyx is the birthstone for the month of August (along with Peridot). Photographed by Harry Taylor
HemimorphiteA specimen of the mineral hemimorphite (hydrated zinc silicate hydroxide). This mineral was formerly known as calamine
Birthstone Series: TanzaniteA specimen of tanzanite, from the Natural History Museum, London. Tanzanite is the birthstone for the month of December (along with Zircon and Turquoise). Photographed by Harry Taylor
CordieriteA specimen of cordierite (magnesium aluminum silicate), a mineral from the class of silicates. Its gemstone variety called iolite is popular among gemstone collectors
Amethyst, baryte dioptase, rhodochrositeAmethyst, purple crystals from India. Baryte, long yellow prisms from Cumbria. Dioptase, green lustrous crusts from Namibia. Rhodochrosite, pink crystals on quartz
Dancing woman in green serpentine
Cancrinite comprises of (sodium calcium aluminum silicate carbonate) and is one of the rarer members of the feldspathoid group. Specimen from the Natural History Museum, London
SpodumeneA specimen of the mineral spodumene (lithium aluminium silicate). This mineral comes in two varieties, Kunzite and Hiddenite
Birthstone Series: BloodstoneA specimen of the mineral bloodstone, a variety of quartz. (33974), from the Natural History Museum, London. Bloodstone is the birthstone for the month of March (along with Aquamarine)
Stilbite comprises of (hydrated sodium calcium aluminum silicate) and derives from the Zeolite group. Specimen from the collections of The Natural History Museum, London
Thomsonite
Emerald crystals and cut stoneEmerald is a variety of beryl (beryllium aluminum silicate). The rich, green colour is attributed to small amounts of chromium which is unmatched by any other mineral species
Insect collection by James Petiver (1663-1)This late 17th century insect collection is unique in that the specimens are mounted and preserved between sheets of the mineral mica
Beryl crystalsBeautifully formed beryly variety crystals of aquamarine, heliodor, morganite and emerald. Beryl comprises of (beryllium aluminum silicate)
Fossil collecting near Aveley, EssexPalaeontologists collecting the remains of a woolly mammoth and a straight-tusked elephant from a clay pit near Aveley, Essex in 1964
EmeraldsEmerald is a variety of beryl (beryllium aluminum silicate). The green colour is attributed to small amounts of chromium. Specimens from the Natural History Museum, London
Birthstone Series: PeridotPeridot, a gemstone from the Natural History Museum, London. Peridot is the birthstone for the month of August (along with Sardonyx). Photographed by Frank Greenaway
Birthstone Series: Blue Topaz
Birthstone Series: TopazTopaz has a chemical composition of aluminum silicate fluoride hydroxide and is the birthstone for the month of November (along with Citrine). Photographed by Frank Greenaway
Quartz variety amethyst
AsbestosGeometric asbestos crystals. Asbestos is a dangerous, fibrous amphibole mineral
Thomas Allan (1777-1833)Portrait of Thomas Allan, an important figure in the history of mineralogy. This is the only known portrait of him. His collection of around 9
Plate 99, from MineralogieVarious gemstone varieties including diamond, ruby, sapphire, spinel and Topaz. From Recuille complet de Mineralogie vol.3 (1790) by F.L. Swebach Desfontaines
Kor-i-noor replicaAn exact copy of the original Kor-i-noor diamond created from cubic zirconia by John Nels Hatleberg (Cat 157). Photographed by Frank Greenaway
Birthstone Series: AquamarineAquamarine is the blue variety of beryl (beryllium aluminum silicate) and is the birthstone of the month of March. A gemstone from the Natural History Museum collections, in London
Birthstone Series: GarnetGarnet has a chemical composition of iron aluminium silicate. It is the birthstone of the month of January. Gemstone from the Natural History Museum collections, in London
Axinite
Chalcedony variety of quartzA specimen of the mineral chalcedony, a variety of quarz, from the Haytor mine, Ilsington, Devon
Enstatite comprises of (magnesium silicate) and derives from the pyroxene group. Specimen from the collections of the Natural History Museum, London
VerditePolished surface of a verdite specimen from Jamestown, Transvaal. Verdite is also known as Africas Green Gold. It is a silicate mineral and often used for decorative carving and sculpture
NatroliteA specimen of the mineral natrolite (Hydrated sodium aluminum silicate), of the group zeolite, from Neubauerberg, Bohemia
Unakite
ZeoliteA zeloite specimen (apophyllite)
Sodalite specimen
Shergottite Sayh al Uhaymir 008, found in Oman in 1999. Shergottites are silicate rocks that are divided into four subgroups. This specimen is about 10cm long
Slice of the lunar meteorite Northwest Africa 482A slice of lunar meteorite Northwest Africa 482. This meteorite is very rich in the feldspar mineral anorthite, which give it its pale colour
Slab of the Lueders meteoriteA slab of the IAB iron meteorite Lueders showing the size, shapes and distribution of silicate inclusions. The slab is about 10cm wide
Microscope image of the Brachina meteorite, the type specimen of the Brachinite meteorites. Brachinites are composed mostly of olivine with minor amounts of pyroxene and plagioclase
The Parnalle ordinary chondriteThe Parnallee ordinary chondrite, part of the Parnallee meteorite that fell in India in 1857
Porphyritic olivine and pyroxene chondruleMicroscopic image of a porphyritic olivine and pyroxene chondrule from the Palmyra (L3) ordinary chondrite (the chondrule is about 1.8mm across)
Lepidolite
Fuchsite specimen
Carnelian specimen
Citrine specimen
Chrysocolla, (hydrated copper silicate)
Chiastolite
Beryl specimen