Sardonyx is a variety of onyx which is typically "striped" and can have the appearance of the "rings" of a sawn tree-trunk, as can be seen in the topmost image. Sardonyx differs from regular onyx in that the dark bands are red or reddish brown, instead of black. The red bands are layers of sard, hence the name. It has similar general properties to onyx.
Crystals, Gemstones, Precious Stones, Agates Bands, Red Band, Bands Agates, Rocks Hound, Rocks And Minerals In Kentucky, U.S. States
Rough slab of red banded agate (aka Sardonyx).
:Agate banded 750pix.jpg
a slice of sardonyx "The foundations of the city walls were decorated with every kind of precious stone. The first foundation was jasper, the second sapphire, the third chalcedony, the fourth emerald, the fifth sardonyx, ..." Revelation 21:19&20
Mexican Crazy Lace Agate
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Mexican Lace Agate
crazy lace agate cabochon
Mexican Crazy Lace Agate. This is beautiful.
Lake Superior Agate (red laker gem)
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State rock- Lake Superior Agate
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geode ❦ CHRYSTALS ❦ semi precious stones ❦
geode #Gemstones| http://colorfulgemstones638.blogspot.com
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leave it to mother nature.. these colors and patterns are amazing
fuschia and teal agate color inspiration
Sliver of Teepee Canyon agate ~ Captain Tenneal Agates are semi-precious gemstones that are a variegated form of chalcedony (pronounced kal-sed'-nee), which is silicon dioxide in the form of microscopic fibrous quartz crystals. Agates naturally develop when an empty pocket inside a host rock fills in molecule-by-molecule, layer-by-layer as these microcrystals self organize to form concentric bands or other patterns. The colors and arrangement of the microcrystals are influenced by changes in pressure, temperature, and mineral content that occur during the formation process. Unlike other gemstones, each agate is unique. Even slabs cut from the same specimen will vary in color and design.
marbled quartz color inspiration
Turritella Agate (Wyoming)
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Turritella agate cabochon - 102 carats - Silverhawk - http://www.samsilverhawk.com/2011gemstones/417cabs/tur.html
Turritella Agate (Wyoming) Fossil Cabochon
Turritella agate cab from Wyoming by Silverhawk Designer Gemstones
Fairburn Agate - South Dakota
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Fairburn agate | Flickr - Photo Sharing!
bijoux-et-mineraux: Fairburn Agate - South Dakota
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Sumatran Agate: Mother Nature is a brilliant artist!
"Sumatran Agate- did my research and this beautiful rock colored in detail is from Indonesia"
Sumatran Agate. #gemstone #minerals #crystals #nature
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Agata / South Dakota
fairburn agate - Google Search
Cut and polished nodule found out on the prairie. | Flickr - Photo Sharing!
Laguna Agate / Chihuahua, Mexico
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Puma Agate geode
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puma agate geode
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by Bill The Eggman,- photo stream= https://www.flickr.com/photos/bill_the_eggman/
Color Theory Therapy| Agate
Fairburn Agate - 2 pieces found separately made 1 perfect piece. Captain Tenneal's photograph.