Chalcedony Collection

Ring with the Head of the Doryphoros of Polykleitos; Eastern Mediterranean; 50 - 40 B.C; Dark green chalcedony and gold; 2.2 × 1.7 cm (7, 8 × 11, 16 in.)

Jasper
A polished slab of jasper from Campsie Fells, Stirlingshire. Jasper is cryptocrystalline agate quartz (silicon dioxide)

Semicassis labiata labiata, agate cassid

Agate bowl, grey and white
Agate is a decorative variety of cryptocrystalline quartz (silicon dioxide). This bowl specimen is from the collections of the Natural History Museum, London

Priest in peasant dress before an altar (perhaps to Priapus)
Priest in Roman peasant dress of hat, cloak, and sandals before an altar (perhaps to Priapus, rustic fertility god). From an engraved chalcedony gem in the collection of Ridolfino Venuti

Bust of an unknown Classical bearded philosopher. In chalcedony. Filisofo incognito. In calcidonia

Roman shepherd overseeing a bull mounting a cow. In chalcedony. Pastore. In calcidonio

Roman youth Gaius Mucius Scaevola putting his hand in the flame before Etruscan king Lars Porsena, 500BC. Soldier in breastplate, leather armour skirts, with his right hand in an altar flame

Figure of Father Time, bearded old man with wings, legs in shackles, leaning on a scythe. In chalcedony. Il Tempo. In calcidonio

Medallion with late Roman cameo insert, 4th-6th century. Creator: Central Asian Art
Medallion with late Roman cameo insert, 4th-6th century. Found in the Collection of the National Museum of Antiquities of Tajikistan, Dushanbe

Agate stones, Agata
6337609 Agate stones, Agata by Corsi (19th century); (add.info.: Agate stones, Agata)

Snuff Bottle with Equestrian Bannerman with Flag, Qing dynasty (1644-1911), 1800-1900

Snuff Bottle with Monkey on Rockwork, Qing dynasty (1644-1911), 1760-1830

Gourd-Shaped Double Snuff Bottle, Qing dynasty (1644-1911), 1780-1880. Creator: Unknown
Gourd-Shaped Double Snuff Bottle, Qing dynasty (1644-1911), 1780-1880

Cameo of Venus and Cupid, Probably a Hat Badge Mounted as a Pendant, Northern Italy, c. 1500-c. 1550 (cameo and frame); c. 1575-c. 1600 (pendant)

Pendant with a Cameo of Orpheus Charming the Animals, Europe, c. 1550-c. 1600 (cameo); 19th or 20th century (mount)

Loop-Handled Dish, England, 1902 / 03. Creator: Charles Robert Ashbee
Loop-Handled Dish, England, 1902/03

Aphanite and chalcedony flint
Aphanite 1, and chalcedony flint with mastoids 2. Afanite, Selce calcedonioso a mastoidi

Onyx agate. Agata onice, con la sua scorza, a zone innumerevoli

Sealstone depicting a fox with forelegs on a vine with grapes (chalcedony stone)
1216277 Sealstone depicting a fox with forelegs on a vine with grapes (chalcedony stone) by Greek, (5th century BC); 1.6x2.1 cm; Ashmolean Museum, University of Oxford

Gems
LLM456770 Gems by English School, (19th century); Private Collection; (add.info.: Gems. Illustration from The National Encyclopaedia (William Mackenzie, c 1870).); © Look and Learn

Schmelzglas by Salviati and Co. of Venice (exhibited London 1862)
BAL2758 Schmelzglas by Salviati and Co. of Venice (exhibited London 1862) by Italian School, (19th century); Victoria & Albert Museum, London, UK; Italian, out of copyright

Bust of Archangel Michael (chalcedony)
1216361 Bust of Archangel Michael (chalcedony) by Byzantine; 2x1.6 cm cm; Ashmolean Museum, University of Oxford, UK; (add.info.: Cilicia bust of Archangel Michael in front)

Jewelry Elements, Iran or Central Asia, late 14th-16th century. Creator: Unknown
Jewelry Elements, Iran or Central Asia, late 14th-16th century. Few examples of medieval Islamic jewelry survive, this resembles pieces from Ilkhanid depictions

Sacrificial knife, Aztec / Mixtec, Mexico, 15th-16th century
Sacrificial knife, Aztec/Mixtec, Mexico, 15th-16th century. The handle is carved in wood and covered with mosaic of turquoise, shell and malachite. The blade is made of chalcedony

Egyptian art. Tutankhamuns pectoral. Dynasty 18. 1332-1322
Egyptian art. Tutankhamuns pectoral with solar and lunar emblem and Scarab. Dynasty 18. 1332-1322 BC. New Kingdom of Egypt. Egyptian Museum Cairo

Fortification agate
A section of fortification agate from Scurdie Ness. Agate is cryptocrystalline quartz. This specimen is from the collections held at the Natural History Museum, London

Agate slice. Agate is an aggregate of different forms of silica (silicon dioxide, SiO2) that have formed concentric bands within a geode

Portrait of the Jeweller Johann Melchior Dinglinger, c1721. Artist: Antoine Pesne
Portrait of the Jeweller Johann Melchior Dinglinger, c1721. Johann Melchior Dinglinger (1664-1731) was one of Europes greatest goldsmiths

Chalcedony cylinder-seal in the first Kassite style, owned by Sha-if-Imma, son of Lugal-Mansi

Precious stones and crystals including quartz, amethyst, etc.. Chromolithograph from Dr. Adolph Kenngotts Mineralogy section in Gotthilf Heinrich von Schuberts Natural History, Schreiber, Munich, 1886

North America; USA; New Mexico; Sant Fe; Agate Closeup, Macro
USA, New Mexico, Sant Fe, Agate Close-up, Macro

Picture No. 11050170
Chalcedony Agate (SiO2) variety Rio Grande do Sul, Brazil Date:

Botryoidal chalcedony, close-up

Chryosprase, a form of chalcedony, on rock surface, close-up

Collection of semi-precious minerals including amethyst, carnelian and lapis lazuli, and semi-precious beads made from quartz, chalcedony, agate, lapis lazuli, turquoise, rhodonite, malachite, garnet

Oval polished green Chrysoprase (Chrysophrase or Chrysoprasus)

Jasper, a form of chalcedony, close-up

Massive carnelian, close up

Cross-section slice of Brazilian agate, close up

Great Cameo of France, sardonyx cameo depicting apotheosis of emperor Tiberius and Germanicus paying homage to emperor
Roman civilization, 1st century A.D. Great Cameo of the Holy Chapel or Great Cameo of France portraying the apotheosis of Tiberius and Germanicus paying homage to the Emperor. Chalcedony

Great Cameo of the Holy Chapel or Great Cameo of France depicting the apotheosis of Emperor Tiberius
Roman civilization, 1st century A.D. Great Cameo of the Holy Chapel or Great Cameo of France depicting the apotheosis of Emperor Tiberius and Germanicus paying homage to emperor. Chalcedony

Agate C013 / 6529
Agate. Section through a specimen of agate from Middlefield, Scotland, UK. Agate is an aggregate of different forms of silica (SiO2) within a geode

Agate geode

Agate Botswana

Agate
Blue lace

Turritella agate

Agate thundereggs

Agate slice

Moss agate specimen

Agate

Bloodstone or heliotrope carvings
These frogs were carved from bloodstone by Paul Dreher. Bloodstone is green agate containing speckles of red jasper. All these derive from the cryptocrystalline quartz group

Agate
Blue lace agate

Plate 3a from Histoire naturelle? (1789)
Plate 3a, Histoire Naturel Des Mineraux et de Pierres Precieuses, from Histoire naturelle: ou, Exposition des morceaux, les mieux choisis pour servir? (1789) by by Swebach Desfontaines

Variety of Gemstones
Left to right, top: Onyx, cornelian, tigers eye, jet, turquoise, lapis lazuli, hematite, jade. Bottom: Ivory, amber, coral, cultured pearl, freshwater pearl, shell, cameo

Plate 3, fig 4 from Mineralienbuch
A illustration of a slice of polished brown jasper. Jasper is a variety of cryptocrystalline quartz (silicon dioxide). Plate 3, fig 4 from Mineralienbuch by F. A. Schmidt, Stuttgart 1855

Agate
This polished agate specimen from Saxony is called Breccia Sanguigna. This brecciated agate comprises mainly of irregular sized fragments of cryptocrystalline quartz, set in a finer matrix

Agate
A polished slice of agate from Uraguay. Agate (silicon dioxide) is a cryptocrystalline quartz

Fourteen molluscs, including gastropods and bivalves
Watercolour 395 by Thomas Watling, from the Watling Collection

Agate
A polished slice of agate or chalcedony from Uraguay. Agate (silicon dioxide) is a cryptocrystalline quartz

Jasper a Hungarian viszla, photographed by Harry Taylor

Carved carnelian bowl
Carnelian is a transluscent yellow to orange variety of chalcedony (micro-crystalline quartz). This bowl was once the property of Sir Hans Sloane

Birthstone Series: Carnelion
A specimen of the mineral, carnelion (BM58673a) from the Natural History Museum, London. Carnelion is the birthstone for the month of July (along with Ruby). Photographed by Harry Taylor

Mocha stone, sardonyx and agate
Mocha stone and sardonyx cameos resting on artificially dyed slabs of agate. All these varieties of chalcedony derive from the cryptocrystalline quartz group

Chalcedony
Polished slab of chalcedony with radiating structure. Chalcedony or agate is a variety of cryptocrystalline quartz (silicon dioxide)

Birthstone Series: Onyx
A specimen of the mineral onyx (GM1703), from the Natural History Museum, London. Onyx is the birthstone for the month of February (along with Amethyst). Photographed by Harry Taylor

Birthstone Series: Sardonyx
A 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

Birthstone Series: Bloodstone
A 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)

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

Carnelian specimen

Agate moss

Agate dyed

Agate
Dyed agate

Agate
Botswana agate

Agate
A cut and polished section of brown banded agate from Brazil. Agate (silicon dioxide) is a cryptocrystalline quartz

Agate
A cut and polished section of blue agate from Idar-Oberstein, Germany. Agate (silicon dioxide) is a cryptocrystalline quartz

Potentilla nivea L. snow cinquefoil
Sketch 2, Newfoundland Volumes. From a collection of original drawings and sketches by Georg Dionysius Ehret (1708-1770). Held in the Botany Library at the Natural History Museum, London

Flint on soil of cultivated arable field, Bacton, Suffolk, England, april

Haematite mineral rock
Haematite, commonly called kidney ore, in its mamillated form. Haematite (iron oxide) varies in colour from metallic black to dull red

Slice of agate, a form of quartz
Agate. Slice through a nodule of agate, a type of chalcedony. This is a cryptocrystalline variety of the mineral quartz (silicon oxide)

Agate, a cryptocrystalline variety of the mineral quartz, whose variegated colours are distributed in regular bands or zones, in clouds or in dendritic forms, as in moss agate

Cut agate
Agate. Slice of the mineral agate, a form of quartz (silicon dioxide), consisting of banded chalcedony

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Chalcedony, a variety of the mineral quartz, is known for its stunning beauty and versatility. Its name originates from the ancient Greek city of Chalcedon, where it was first discovered. This captivating gemstone comes in various forms and colors, such as jasper and agate. One remarkable example of chalcedony's allure is an exquisite grey and white agate bowl. Crafted with precision and skill, this bowl showcases the stone's natural patterns in a mesmerizing display. Intriguing historical artifacts also feature chalcedony prominently. Take, for instance, a sacrificial knife from Aztec/Mixtec culture in Mexico during the 15th-16th century. Adorned with chalcedony stones, this ceremonial weapon symbolizes power and spirituality. Chalcedony's charm extends to delicate snuff bottles created during China's Qing dynasty (1644-1911). A snuff bottle featuring an equestrian bannerman holding a flag captures the essence of Chinese artistry between 1800-1900. Another bottle portrays a playful monkey atop rockwork dating back to 1760-1830. Meanwhile, a gourd-shaped double snuff bottle crafted by an unknown artist during 1780-1880 demonstrates creativity within traditional Chinese craftsmanship. The allure transcends time and borders; even Europe has been captivated by its beauty throughout history. A pendant cameo depicting Venus and Cupid likely served as a hat badge mounted on jewelry originating from Northern Italy. Similarly enchanting is another pendant showcasing Orpheus charming animals through intricately carved chalcedony cameo work dating back to c. 1550-c1600. Not limited to ornamental purposes alone they can be found adorning functional objects like loop-handled dishes made by Charles Robert Ashbee in England during 1902/03.