
Circular unit of Finsen lamp
1890-1900
The main circular unit of the Finsen ultraviolet lamp, presented by Princess Alexandra to the London Hospital in 1900

John Dee's crystal, Europe, 1582
1582
John Dee's crystal, used for clairvoyance and for curing disease

Stone, piece of quartz
1881-1910
Stone, piece of quartz, used as hammer in tooth avulsion operation, from Sunday Island, Victoria, Australia, 1881-1910

Quartz pebble
Quartz pebble, curative stone, from St. Kieran's Well Ballaghmore, Irish, found 1930-1931.

Quartz arrowhead in gold mount
1880-1920
Quartz arrowhead in gold mount, ring for suspension, European(?), 1880-1920

Irregular stone weight
1880-1920
Irregular stone weight, pierced with central hole, Gold Coast, 1880-1920

Veined water worn stone
1890-1930
Veined water worn stone, mainly argillaceous with quartz base, carried against tothache, from South Devon, English, 1890-1930

Specimen of quartz
Specimen of quartz used in manufacture of porcelain

Quartz Crystal used for Oscillator
2012
Quartz Crystal used for oscillators, Airbus, Stevenage, United Kingdom, 2012

Small metal tinder box with steel incorporated round rim
1820-1900
Small metal tinder box with steel incorporated round rim, hinged lid with small flint and yellow cloth wick inside, English(?) 1820-1900

Tumbler, quartz, cylindrical, flat base, Italian
Quartz tumbler, cylindrical with flat base, Italian

Transverse folding
1801-1900
Transverse folding, tinted, eye preserver spectacles, tortoiseshell broken and incomplete, Chinese, 1801-1900

Leaf-shaped snuff bottle with snuff spoon
1851-1900
Quartz snuff bottle flattish leaf-shape with moulded landscape scene in low relief, broken stopper with small wooden(?) snuff spoon attached inside, Japanese, 1851-1900

Hollow Prism of natural quartz with mounting lug on base
1900-1905
Hollow Prism of natural quartz with mounting lug on base, and three quartz windows for same, by Adam Hilger Ltd., c.1902. Used by the late Col. J. W. Gifford.

Boys' Radiomicrometer, 1887-1900
1887-1900
Original experimental radiomicrometer, design by Sir Charles Vernon Boys made by The Cambridge Scientific Instrument Company Limited, Cambridge, England, 1887-1900.

Spectacles: metal frame, smoked quartz; hinged extensi
1770-1850
Pair of smoked quartz spectacles in metal frame with folding arms, one arm broken, unsigned, Europe, 1770-1850.

Circular quartz planar mirror (5-inch)
1960-1970
Circular quartz planar mirror (5-inch), aluminium coated with wooden case, unsigned, 1960-1970.

Barrel-shaped haematite weight
circa 1700-1600 BCE
One of 6 black haematite Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6337).

Transparent quartz Syrian weight, barrel shaped, from Gaza, Deben system
circa 1700-1600 BCE
One transparent quartz Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6328).

Barrel-shaped haematite weight
circa 1700-1600 BCE
One of 6 black haematite Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6131).

Barrel-shaped haematite weight
circa 1700-1600 BCE
One of 6 black haematite Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6136).

Barrel-shaped haematite weight
circa 1700-1600 BCE
One of 6 black haematite Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6163).

Barrel-shaped haematite weight
circa 1700-1600 BCE
One of 6 black haematite Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6333).

Bow, transverse folding spectacles
1690-1720
Bow, transverse folding spectacles, quartz, horn and blue steel, one lens missing, English, 1690-1720

Quartz pebble from well sacred to St. Kieran
Quartz pebble from well sacred to St. Kieran, taken from the water and rubbed on the body to relieve pain, Ballaghmore, Leix, Irish, found 1930-31.

Quartz pebble
Quartz pebble, dropped into the water after making a wish, from Mungo's Well, Alloway, Ayrshire, Scottish, found in 1931.

Quartz Crystal for X-ray polychromator, England, 1980
1978-1980
Quartz crystal for X-ray polychromator on Solar Maximum Mission satellite, either by the Mullard Space Science Laboratory or Rutherford Appleton Laboratory, England, 1978-1980

Mortar,bowl shape, polished yellow/brown quartz
1501-1900
Small bowl-shaped mortar, of polished yellowy-brown quartz, possibly north African or Middle Eastern, 1501-1900

Limestone Syrian weight, cone shaped, from Gaza, Deben system
circa 1500 BCE
One of 2 limestone Syrian weights, cone shaped, from Gaza. Deben system, c.B.C. 1500, (Petrie Cat. No.6145).

Limestone Syrian weight, cone shaped, from Gaza, Deben system
circa 1500 BCE
One of 2 limestone Syrian weights, cone shaped, from Gaza. Deben system, c.B.C. 1500, (Petrie Cat. No.6138).

White quartz Syrian weight, cone shaped, from Gaza, Deben system
circa 1500 BCE
One white quartz Syrian weights, cone shaped, from Gaza. Deben system, c.B.C. 1500, (Petrie Cat. No.6148).

Brown haematite Syrian weight, barrel shaped, from Gaza, Deben system
circa 1700-1600 BCE
One brown haematite Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6142).

Barrel-shaped haematite weight
circa 1700-1600 BCE
One of 6 black haematite Syrian weights, barrel shaped, from Gaza. Deben system, c.B.C.1700-1600, (Petrie No.6153).

Multiplying spectacles, 1650
1650
Multiplying spectacles, consisting of a pair of rock crystal 'lenses', each with 24 facets, in a gilt metal frame, 17th-18th century.

Length of Boys' Quartz Fibre in Display Case, 1887-1892
1887-1892
Quartz fibre wrapped 18 times around a frame in wooden case, by Sir Charles Vernon Boys, London, England, 1887-1892

Lummer plate
1904-1948
Lummer plate, made of quartz, for splitting light into a spectrum with very high resolution, in felt-lined wooden case for storage, with felt-lined metal stand for use. Stand has two fixed feet and one levelling foot and is engraved 'QUARTZ. / THICKNESS = 4.60M/M / ADAM HILGER LTD. / LONDON, ENGLAND.'

Irregular stone weight, with central hole
1880-1920
Irregular stone weight, pierced with central hole, East Akim, Gold Coast, Africa 1880-1920

Small stone weight
1851-1910
Small stone weight, quartz, roughly circular with hole pierced through centre, Gold Coast, African, 1851-1910

Irregular stone weight
1880-1920
Irregular stone weight, pierced with central hole, Gold Coast, 1880-1920

Quartz stone
Quartz stone, possibly a crop stone, labelled as being found in a peacock

Boar's tusk amulet
1870-1920
Boar's tusk amulet, fish hook(?), with phallic-shaped quartz-crystal attached, from Sarawak, Borneo, 1870-1920

Irregular stone weight
1880-1920
Irregular stone weight, pierced with central hole, Gold Coast, 1880-1920

Quartz, incorrectly thought to be a bezoar
Quartz, incorrectly thought to be a bezoar

Quartz, incorrectly thought to be a bezoar
Quartz, incorrectly thought to be a bezoar, beige, drilled with a hole

Heurtley magnifier, 1919.
1919
Heurtley magnifier plus two boxes, one with Wollaston wires and one with quartz fibres, Muirhead and Company Limited, Beckenham, 1919. Ex Submarine Cable Exhibition, 1950.

Six small pieces of quartz rod
1887-1892
Six small pieces of quartz rod (two broken into fragments, one into 4 fragments) associated with Charles Vernon Boys' original bow for shooting quartz fibres, England, 1887.

Quartz Fibres by Sir Charles Vernon Boys, 1887-1892
1887-1892
Wooden box containing several quartz fibres, by Prof. Charles Vernon Boys, London, England, 1887-92.

Concave iron block with crystal quartz attached
Concave iron block to which 18 pieces of rock crystal (quartz) are stuck by means of pitch ready for grinding and polishing

left-handed quartz prism by Adam Hilger Ltd.
1900-1905
left-handed quartz prism by Adam Hilger Ltd., c. 1902. Used by the late Col. J. W. Gifford.

Four quartz optical flats
1920-1939
Four quartz optical flats (1-inch diam, 1/2-inch thick; two flats chipped at the edges) in mahogany wooden case, made by Optical Works Ltd., London W5, England, serial number T.600 S.54.