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chalcedony    
n. 玉髓

玉髓

chalcedony
n 1: a milky or greyish translucent to transparent quartz [synonym:
{chalcedony}, {calcedony}]

Chalcedony \Chal*ced"o*ny\ (k[a^]l*s[e^]d"[-o]*n[y^] or
k[a^]l"s[-e]*d[-o]*n[y^]; 277), n.; pl. {Chalcedonies}
(-n[i^]z). [ L. chalcedonius, fr. Gr. CHalkhdw`n Chalcedon, a
town in Asia Minor, opposite to Byzantium: cf. calc['e]doine,
OE. calcidoine, casidoyne. Cf. {Cassidony}.] (Min.)
A cryptocrystalline, translucent variety of quartz, having
usually a whitish color, and a luster nearly like wax.
[Written also {calcedony}.]
[1913 Webster]

Note: When chalcedony is variegated with with spots or
figures, or arranged in differently colored layers, it
is called {agate}; and if by reason of the thickness,
color, and arrangement of the layers it is suitable for
being carved into cameos, it is called {onyx}.
{Chrysoprase} is green chalcedony; {carnelian}, a flesh
red, and {sard}, a brownish red variety.
[1913 Webster]


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  • Chalcedony - Wikipedia
    Chalcedony[a] is an aggregate of cryptocrystalline or microcrystalline silica, or in simpler terms, a mass of individual silica crystals that are too small to be seen without magnification It is composed primarily of quartz, with minor amounts of intergrown moganite [3] These are both silica minerals with a chemical composition of SiO2, but they differ in that quartz has a more symmetrical
  • The 7 Different Types Of Chalcedony (With Photos) - Rock Chasing
    Chalcedony is a gemstone that you can find in all sorts of shapes and colors Imagine finding a rock that can be blue, pink, green, or even rainbow-colored! It gets these amazing hues from tiny crystals that form in unique patterns, which is how we get the different types of chalcedony This gemstone forms over a really long time, deep inside the earth or in volcanic rock When water with
  • Chalcedony: Meaning, Properties, Healing Uses | CrystalStones. com
    Discover Chalcedony, the soft blue-grey quartz for gentle communication, calm, and goodwill Learn its properties and care By Crystal Cassandra
  • CHALCEDONY Definition Meaning - Merriam-Webster
    The meaning of CHALCEDONY is a translucent variety of quartz of various colors and waxy luster
  • Chalcedony | Properties, Formation, Occurence - Geology Science
    Chalcedony is a mineral that is composed of microscopic crystals of quartz It is a cryptocrystalline form of silica, meaning that its crystals are too small to be seen without the aid of a microscope Chalcedony typically has a waxy or glassy luster, and comes in a range of colors, including white, gray, blue, and brown It is often used as a gemstone or in jewelry-making, and is also used in
  • Gemstones - Chalcedony
    Chalcedony is a catch all term that includes many well known varieties of cryptocrystalline quartz gemstones They are found in all 50 States, in many colors and color combinations, and in sedimentary, igneous, and metamorphic rocks Chalcedony includes carnelian, sard, plasma, prase, bloodstone, onyx, sardonyx, chrysoprase, thundereggs, agate, flint, chert, jasper, petrified wood, and
  • Chalcedony Gemstone: Properties, Meanings, Value More
    Chalcedony is a family of unique quartz stones and a solid-colored gemstone in that family, often white or pale grayish-blue Learn the chalcedony types, healing uses, and prices!
  • Chalcedony | Agate, Quartz Jasper | Britannica
    Chalcedony, a very fine-grained (cryptocrystalline) variety of the silica mineral quartz (q v ) A form of chert, it occurs in concretionary, mammillated, or stalactitic forms of waxy lustre and has a compact fibrous structure, a fine splintery fracture, and a great variety of colours—usually
  • Chalcedony: Mineral information, data and localities.
    Depending on the context, the term "chalcedony" has different meanings 1 A more general term for all varieties of quartz that are made of microscopic or
  • The Many Different Faces of Chalcedony: More Than Just a Pretty Stone
    The most common stone sold as chalcedony is a pale blue, banded form of the mineral This form of chalcedony can be quite expensive for higher-grade material and it remains a common gemstone used in jewelry Uniformity and more saturated color are the name of the game when it comes to pricing But there’s far more to the family than that





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