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  • noun

Synonyms for chalcedony

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For instance, the NIR absorption spectrum of chalcedony shows a combination band at about 5200 [cm.
The rich enjoyed a lavish lifestyle of society balls and A Secessionist brooch woman's headdress apple green a gemstone of Chalcedony.
Shades of blue and green in chalcedony precede the glowing orange of calcite and the vivid greens of fluorite, an ingredient in toothpaste.
Most are a variety of cryptocrystalline silicates, divided into fibrous chalcedony, granular cherts, and microcrystalline silicates (MCS), distinguished by coarser grains visible under a hand lens.
Prayer beads are often made of wood, olive seeds, ivory, amber, tortoise shell, glass, meerschaum, ivory, pearl, coral, coconut, pebble, mother of pearl, jade, and the chalcedony family such as carnelian, agate, and onyx, the latter three being the most famous.
Additionally, small vacuoles in the rock (Figure 13b) were filled with fibrous chalcedony and opal (amorphous), and also some zeolites.
Yellow chalcedony paraded on one necklace with clear rock crystals and peridot, while aquamarine, prehnite, amethyst, and red jade were joined in others.
Exotic Gems; Volume 3: How to Identify, Evaluate, Select and Care for Matrix Opal, Fire Agate, Blue Chalcedony, Rubellite Indicolite, Paraiba and Other Tourmalines
Native Americans considered chalcedony -- the family of minerals that includes jasper, onyx and agate -- capable of imparting strength and courage.
We use a lot of moonstones and chalcedony," he added.
This petrification process generally results in a Quartz and Chalcedony mineralization.
The major constituents of oil shale are organic matter (OM), clay minerals, carbonates, framboidal pyrite, and other autogenous and allothigenous minerals, such as opal, chalcedony, feldspars, garnets, zircon.
These gems included agate, sardonyx, chalcedony and other semi-transparent stones, regarded by today's jewellers as gemstones as distinguished from precious stones, a term used only for diamonds, rubies, sapphires and emeralds.