Mineral Collection (#17)

Plate 9a from Histoire naturelle? (1789)
Plate 9a, Mineralogie, from Histoire naturelle: ou, Exposition des morceaux, les mieux choisis pour servir? (1789) by by Swebach Desfontaines

Plate 24 from Mineralogie
Mine de Fer grise de Saxe Coloree gorge de Pigeon. From Recuille complet de Mineralogie? vol.5 (1790) by F.L. Swebach Desfontaines

Plate 11 from Mineralogie
Grouppe de Cristaux de Mine de Plomb blanche d Huegoet pres Poullaoen en Basse Bretagne. From Recuille complet de Mineralogie? vol.6 (1790) by F.L. Swebach Desfontaines

Plate 44 from Mineralogie Volume 1 (1790)

Semicassis labiata labiata, agate cassid

Plate 25 from Mineralogie
Mine de Fer Coloree et Cristallisee en Octaedres prismatique tres curieux. From Recuille complet de Mineralogie? vol.5 (1790) by F.L. Swebach Desfontaines

Kor-i-noor replica
An exact copy of the original Kor-i-noor diamond created from cubic zirconia by John Nels Hatleberg (Cat 157). Photographed by Frank Greenaway

Charcoal
Specimen of commercial charcoal produced from wood. Charcoal is created by burning organic substances such as wood in the absence of oxygen

Birthstone Series: Aquamarine
Aquamarine 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

Gold specimens
A variety of gold specimens held at the Natural History Museum, London. Gold is an elemental metal. It occurs mainly as nuggets in rocks and alluvial deposits

The cliff edge engine houses of Wheal Trewavas
Situated on the Tregonning granite at Trewavas Head, south Cornwall. Image used in Minerals of Cornwall and Devon by P.G. Embrey and R.F. Symes, 1987, page 40. See also 4072

Birthstone Series: Garnet
Garnet 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

Pycnodus zeaformis Longbottom, fish tooth plate
Corn-on-the-cob fish tooth plate from a paratype specimen dating from the Lower or Middle Eocene phosphates; Tamagu?lelt, Gao region, Mali

Mineral replacement
This piece of wood has been replaced with metallic copper. Specimen is from the Mavovouni mines, Cyprus 2, 300 BP. Specimen on display at the Natural History Museum, London

Diamond fields, Cape of Good Hope
A photograph taken during the voyage of H.M.S. Challenger (1872-1876), funded by the British Government for scientific purposes

Baryte
Specimen of the mineral Baryte from Wheal Mary Ann Menheriot, Cornwal, England

Axinite

Mimetite
A tall, orange prismatic crystal of mimetite. Mimetite comprises of (lead chloroarsenate)

Sweetite
A Specimen from the collections held at the Natural History Museum, London from Milltown, Ashover, Derbyshire

Gersdorffite comprises of (nickel arsenic suphide). It is associated with hydrothermal veins and magma derived from sulphite deposits. Specimen from the Natural History Museum, London

Torbernite

Chalcedony variety of quartz
A specimen of the mineral chalcedony, a variety of quarz, from the Haytor mine, Ilsington, Devon

Tungsten minerals
Tungsten deposit formed through the direct contact of volcanic magma with the surrounding rock. Tungsten is a metallic element with the atomic number 74. It is contained in minerals such as wolframite

Enstatite comprises of (magnesium silicate) and derives from the pyroxene group. Specimen from the collections of the Natural History Museum, London

Verdite
Polished 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

Natrolite
A specimen of the mineral natrolite (Hydrated sodium aluminum silicate), of the group zeolite, from Neubauerberg, Bohemia

Opal
Fire opal in a matrix slab of alunite from Guatemala. Opals are not truely crystalline and are therefore mineraloids. They comprise of (hydrated silica glass)

Unakite

Zeolite
A zeloite specimen (apophyllite)

Tiger eye specimen

Sodalite specimen

Septarian nodule

Pyrite specimen

Opal in matrix specimen

Obsidian 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 482
A slice of lunar meteorite Northwest Africa 482. This meteorite is very rich in the feldspar mineral anorthite, which give it its pale colour

Microscope image of the Zagami shergottite. The fractures in the pyroxene mineral grains and the paler patches of glass show that the rock has been shocked. Field of view is 5mm

Slab of the Lueders meteorite
A 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 Bustee aubrite
Photograph of the Bustee aubrite, a light-coloured meteorite containing brown oldhamite crystals

The Parnalle ordinary chondrite
The Parnallee ordinary chondrite, part of the Parnallee meteorite that fell in India in 1857

Porphyritic olivine and pyroxene chondrule
Microscopic image of a porphyritic olivine and pyroxene chondrule from the Palmyra (L3) ordinary chondrite (the chondrule is about 1.8mm across)

Lepidolite

Leopardskin stone specimen

Hematite tumblestone

Hematite group
A group of hematite

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