Definition of chalcedony in English:

chalcedony

nounPlural chalcedonies kalˈsɛdəni

mass noun

A microcrystalline type of quartz occurring in several different forms including onyx and agate.
玉髓
Example sentencesExamples
- Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite.
- Concretions of chalcedony after barite can be confused with cycads, and the wise collector must learn to differentiate between the two.
- Furthermore Oehler had previously shown that the silica minerals quartz and chalcedony critically important in the petrification of wood, can be made, rapidly in the laboratory from silica gel.
- Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony.
- The depictions of birds and flowers were executed in precious materials including lapis lazuli, agate, Sicilian red and green jasper, chalcedony, amethyst and quartz as well as superb hard stones.
- The collection today has eight vases executed by the Baroviers in calcedonio glass, which imitates chalcedony, banded agate, and other semiprecious stones.
- The matrix is composed of microgranular quartz with some fibrous chalcedony.
- The coarsely crystalline veins are composed predominantly of colorless barite and quartz and white chalcedony.
- In the spring of 1968, Stepanov together with amateurs B. Kantor and E. Kurdyukov discovered the now-famous manifestation of hollow agates with chalcedony pseudostalactites in the Moscow region.
- The Brushy Basin sediments contain numerous chalcedony pseudomorph-after-barite concretions that range to more than 30 cm in diameter.
- Calcite and barite actually crystallize after the formation of chalcedony and quartz cease and often infill or possibly cause subsequent fracturing of the agate.
- Heaney expected to find that the quartz in tiger's-eye was chalcedony, a form that typically consists of fibrous, defect-riddled crystals less than 1 micrometer in diameter.
- Slowest-forming and most beautiful of all, huge crystals of amethyst, agate, chalcedony and rock crystal grow where condensed water has managed to seep into naturally insulated rock crevices.
- The shoots and stalks themselves are casts composed of combinations of chalcedony, quartz, calcite, and barite.
- In fact, seventeen of the fifty-seven sites are specifically listed for agate, chalcedony, chert, jasper, or petrified wood.
- The fine-grained sediment of the matrix is composed chiefly of microgranular quartz, although chalcedony with a fibrous texture is sometimes found.
- These include Neolithic tools made from chalcedony as well as nephrite objects from Ancient China.
- The former habit is best known as the diagnostic morphology exhibited by stilbite; the latter is seen in many minerals, from malachite to chalcedony to goethite.
- Vein minerals are barite, calcite, chalcedony, and quartz.
- Common cements include clay minerals such as kaolinite, montmorillonite, or illite; quartz or chalcedony; iron oxides such as haematite; or calcite.

Derivatives

chalcedonic

adjective ˌkalsɪˈdɒnɪk

The formation is composed largely of dark limestone and dolomite, and contains black chalcedonic chert in fine laminated layers, a piece of which is displayed near the bottom of this page.
Example sentencesExamples
- Under the microscope it shows the same structure, the same distribution of crypto crystalline ground mass, which is chalcedonic in character.
- The chalcedonic buckle found at Monor may be classed to this type in spite of its slight variation.
- The Main vein is 7-8 feet thick, extends for 300 feet along strike, and consists of chalcedonic quartz.
- There is no chalcedonic quartz anywhere within or on the specimen.

Origin

Late Middle English: from Latin calcedonius, chalcedonius (often believed to mean 'stone of Chalcedon', but this is doubtful), from Greek khalkēdōn.

Definition of chalcedony in US English:

chalcedony

noun

A microcrystalline type of quartz occurring in several different forms, including onyx, agate, and jasper.
玉髓
Example sentencesExamples
- In fact, seventeen of the fifty-seven sites are specifically listed for agate, chalcedony, chert, jasper, or petrified wood.
- The matrix is composed of microgranular quartz with some fibrous chalcedony.
- Calcite and barite actually crystallize after the formation of chalcedony and quartz cease and often infill or possibly cause subsequent fracturing of the agate.
- The fine-grained sediment of the matrix is composed chiefly of microgranular quartz, although chalcedony with a fibrous texture is sometimes found.
- Heaney expected to find that the quartz in tiger's-eye was chalcedony, a form that typically consists of fibrous, defect-riddled crystals less than 1 micrometer in diameter.
- The coarsely crystalline veins are composed predominantly of colorless barite and quartz and white chalcedony.
- The collection today has eight vases executed by the Baroviers in calcedonio glass, which imitates chalcedony, banded agate, and other semiprecious stones.
- The shoots and stalks themselves are casts composed of combinations of chalcedony, quartz, calcite, and barite.
- Concretions of chalcedony after barite can be confused with cycads, and the wise collector must learn to differentiate between the two.
- The depictions of birds and flowers were executed in precious materials including lapis lazuli, agate, Sicilian red and green jasper, chalcedony, amethyst and quartz as well as superb hard stones.
- The former habit is best known as the diagnostic morphology exhibited by stilbite; the latter is seen in many minerals, from malachite to chalcedony to goethite.
- These include Neolithic tools made from chalcedony as well as nephrite objects from Ancient China.
- Vein minerals are barite, calcite, chalcedony, and quartz.
- Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony.
- In the spring of 1968, Stepanov together with amateurs B. Kantor and E. Kurdyukov discovered the now-famous manifestation of hollow agates with chalcedony pseudostalactites in the Moscow region.
- The Brushy Basin sediments contain numerous chalcedony pseudomorph-after-barite concretions that range to more than 30 cm in diameter.
- Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite.
- Common cements include clay minerals such as kaolinite, montmorillonite, or illite; quartz or chalcedony; iron oxides such as haematite; or calcite.
- Furthermore Oehler had previously shown that the silica minerals quartz and chalcedony critically important in the petrification of wood, can be made, rapidly in the laboratory from silica gel.
- Slowest-forming and most beautiful of all, huge crystals of amethyst, agate, chalcedony and rock crystal grow where condensed water has managed to seep into naturally insulated rock crevices.

Origin

Late Middle English: from Latin calcedonius, chalcedonius (often believed to mean ‘stone of Chalcedon’, but this is doubtful), from Greek khalkēdōn.

单词	chalcedony
释义	Definition of chalcedony in English: chalcedony nounPlural chalcedonies kalˈsɛdəni mass noun A microcrystalline type of quartz occurring in several different forms including onyx and agate. 玉髓 Example sentencesExamples Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite. Concretions of chalcedony after barite can be confused with cycads, and the wise collector must learn to differentiate between the two. Furthermore Oehler had previously shown that the silica minerals quartz and chalcedony critically important in the petrification of wood, can be made, rapidly in the laboratory from silica gel. Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony. The depictions of birds and flowers were executed in precious materials including lapis lazuli, agate, Sicilian red and green jasper, chalcedony, amethyst and quartz as well as superb hard stones. The collection today has eight vases executed by the Baroviers in calcedonio glass, which imitates chalcedony, banded agate, and other semiprecious stones. The matrix is composed of microgranular quartz with some fibrous chalcedony. The coarsely crystalline veins are composed predominantly of colorless barite and quartz and white chalcedony. In the spring of 1968, Stepanov together with amateurs B. Kantor and E. Kurdyukov discovered the now-famous manifestation of hollow agates with chalcedony pseudostalactites in the Moscow region. The Brushy Basin sediments contain numerous chalcedony pseudomorph-after-barite concretions that range to more than 30 cm in diameter. Calcite and barite actually crystallize after the formation of chalcedony and quartz cease and often infill or possibly cause subsequent fracturing of the agate. Heaney expected to find that the quartz in tiger's-eye was chalcedony, a form that typically consists of fibrous, defect-riddled crystals less than 1 micrometer in diameter. Slowest-forming and most beautiful of all, huge crystals of amethyst, agate, chalcedony and rock crystal grow where condensed water has managed to seep into naturally insulated rock crevices. The shoots and stalks themselves are casts composed of combinations of chalcedony, quartz, calcite, and barite. In fact, seventeen of the fifty-seven sites are specifically listed for agate, chalcedony, chert, jasper, or petrified wood. The fine-grained sediment of the matrix is composed chiefly of microgranular quartz, although chalcedony with a fibrous texture is sometimes found. These include Neolithic tools made from chalcedony as well as nephrite objects from Ancient China. The former habit is best known as the diagnostic morphology exhibited by stilbite; the latter is seen in many minerals, from malachite to chalcedony to goethite. Vein minerals are barite, calcite, chalcedony, and quartz. Common cements include clay minerals such as kaolinite, montmorillonite, or illite; quartz or chalcedony; iron oxides such as haematite; or calcite. Derivatives chalcedonic adjective ˌkalsɪˈdɒnɪk The formation is composed largely of dark limestone and dolomite, and contains black chalcedonic chert in fine laminated layers, a piece of which is displayed near the bottom of this page. Example sentencesExamples Under the microscope it shows the same structure, the same distribution of crypto crystalline ground mass, which is chalcedonic in character. The chalcedonic buckle found at Monor may be classed to this type in spite of its slight variation. The Main vein is 7-8 feet thick, extends for 300 feet along strike, and consists of chalcedonic quartz. There is no chalcedonic quartz anywhere within or on the specimen. Origin Late Middle English: from Latin calcedonius, chalcedonius (often believed to mean 'stone of Chalcedon', but this is doubtful), from Greek khalkēdōn. Definition of chalcedony in US English: chalcedony noun A microcrystalline type of quartz occurring in several different forms, including onyx, agate, and jasper. 玉髓 Example sentencesExamples In fact, seventeen of the fifty-seven sites are specifically listed for agate, chalcedony, chert, jasper, or petrified wood. The matrix is composed of microgranular quartz with some fibrous chalcedony. Calcite and barite actually crystallize after the formation of chalcedony and quartz cease and often infill or possibly cause subsequent fracturing of the agate. The fine-grained sediment of the matrix is composed chiefly of microgranular quartz, although chalcedony with a fibrous texture is sometimes found. Heaney expected to find that the quartz in tiger's-eye was chalcedony, a form that typically consists of fibrous, defect-riddled crystals less than 1 micrometer in diameter. The coarsely crystalline veins are composed predominantly of colorless barite and quartz and white chalcedony. The collection today has eight vases executed by the Baroviers in calcedonio glass, which imitates chalcedony, banded agate, and other semiprecious stones. The shoots and stalks themselves are casts composed of combinations of chalcedony, quartz, calcite, and barite. Concretions of chalcedony after barite can be confused with cycads, and the wise collector must learn to differentiate between the two. The depictions of birds and flowers were executed in precious materials including lapis lazuli, agate, Sicilian red and green jasper, chalcedony, amethyst and quartz as well as superb hard stones. The former habit is best known as the diagnostic morphology exhibited by stilbite; the latter is seen in many minerals, from malachite to chalcedony to goethite. These include Neolithic tools made from chalcedony as well as nephrite objects from Ancient China. Vein minerals are barite, calcite, chalcedony, and quartz. Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony. In the spring of 1968, Stepanov together with amateurs B. Kantor and E. Kurdyukov discovered the now-famous manifestation of hollow agates with chalcedony pseudostalactites in the Moscow region. The Brushy Basin sediments contain numerous chalcedony pseudomorph-after-barite concretions that range to more than 30 cm in diameter. Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite. Common cements include clay minerals such as kaolinite, montmorillonite, or illite; quartz or chalcedony; iron oxides such as haematite; or calcite. Furthermore Oehler had previously shown that the silica minerals quartz and chalcedony critically important in the petrification of wood, can be made, rapidly in the laboratory from silica gel. Slowest-forming and most beautiful of all, huge crystals of amethyst, agate, chalcedony and rock crystal grow where condensed water has managed to seep into naturally insulated rock crevices. Origin Late Middle English: from Latin calcedonius, chalcedonius (often believed to mean ‘stone of Chalcedon’, but this is doubtful), from Greek khalkēdōn.
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