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Agate Jewelry & Accessories

Agates (Variegated Chalcedony, Banded Chalcedony) Also referred to as Variegated Chalcedony, come in many colors and types. There are thousands of types of agates, often named for where they are found, structure types, and a combinations of types.

What are agates?

Agates are micro-crystalline quartzes within the chalcedony family of micro-quartzes. There are multitudes of names for types of agates. Names vary depending on geographic origin, coloring, special banding effects, and other characteristics.

What are the different types of agates?

Raw agates are found in three main forms: amygdaloid, lithophysae, and sedimentary. Amygdaloid agates resemble almond shaped beat up potatoes. Lithophysae are more commonly called thundereggs and have a ridged or bubbly texture. When cut, the middles often have a star shaped center cavity. Sedimentary agates have a smoother cauliflower like texture than the other two agate types. These three agate types are all nodules, which are solid. Geodes are hollow nodules that can be any of the three types of agate.

What is the difference between jaspers and agates?

Jaspers can often be confused with agates since they are both types of micro-crystalline quartzes. Agates fall into the fibrous chalcedony group and jaspers fall into the grainy chalcedony group.

What are the kinds of chalcedony?

Chalcedony gems are: agate, carnelian, chrysoprase, onyx, plasma (fibrous), sard, bloodstone, chert, jasper, and plasma (grainy).

What are the colors of agates?

Agates come in many natural colors depending on what minerals are embedded in the main material of the agate, which is silica. Super bright colored agates are most likely dyed. Some agates have even been dyed to look like onyx. There are iridescnt agates as well. They are rarer than other types. They can be used as a less expensive alternative to opals.

Is there such a thing as fake agates?

Interestingly, there are some types of non-agate agates. That is material that has banding and coloring effects that look like agate but are not made from silica. Rainbow silica and Fordite (aka Detriot Agates) are two types of non-agate agates.

Agate Types Based on Physical Characteristics

Agate Types Based on Location

Here is my list of agates named after the places they were found. This list is still evolving and will be updated as I find new ones to list.


Sources:

http://www.sailorenergy.net/Agates/MineralWhatareAgatesThunderegg.html
http://www.sailorenergy.net/Agates/DwarvesETAgatesEggsThunderEggs.html
http://agateswithinclusions.com/article-html/
http://www.agatelady.com/agate-basics.html
http://www.minerals.net/gemstone/agate_gemstone.aspx
http://www.minerals.net/mineral/agate.aspx
http://www.gemstonesadvisor.com/types-agate/
http://www.quartzpage.de/agate.html
https://www.facebook.com/DaVistaAgates/posts/716519551779371
http://rockhoundstation1.com/pdfs-etc/June2009.pdf
http://www.agates.eu/
https://en.wikipedia.org/wiki/Agate
http://www.mineralworld.de/html/achat_engl.html
http://www.agateexpos.com/banquet/brad-cross/
http://www.zianet.com/geodekid/bakrbscs.html
http://geology.com/gemstones/turritella/
http://geology.com/gemstones/
http://www.agatehunter.com/fairburns.htm
http://www3.northern.edu/natsource/EARTH/Fairbu1.htm
http://www.quartzpage.de/chalcedony.html
http://moonlightgemstones.com/index.html
https://thegemshop.com/pages/mushroom-rhyolite-operation-2011
http://www.thundereggs.co.uk/usa/california/index_leadpipe.html
http://www.desertusa.com/thingstodo/du_ttd_treasure.html
https://desertmagazine.wordpress.com/2013/08/23/wiley-well-after-two-decades-still-the-deserts-best-gem-mineral-field/
http://andy321.proboards.com/thread/42529
http://www.blm.gov/ca/st/en/fo/elcentro/recreation/rocks/wwgeodebeds.html
http://www.emnrd.state.nm.us/SPD/rockhoundstatepark.html
http://www.findingrocks.com/cgi-bin/viewlocations.cgi?state=CA
http://www.blm.gov/ca/st/en/fo/needles/rock.html
http://www.highdesertinsider.com/html/agvalley.htm
http://www.highdesertinsider.com/html/fourcorn.htm
http://www.highdesertinsider.com/html/gemhill.htm
https://issuu.com/wruple/docs/goldbook3
http://www.micromountersofnewengland.org/pdfs/Min-Loc1.pdf
http://www.gatorgirlrocks.com/state-by-state/alaska.html
http://www.milesofalaska.net/gems/Alaska_rocks.html
http://www.blm.gov/az/st/en/prog/recreation/rockhnd/locations/blk_hills.html
http://www.mcrocks.com/ftr11-1/StoopsAugust2011.html


Did you know that:

  • Agates are the classical birthstones of May
  • Agates are a gemstone for Gemini, Scorpio, and Capricorn

Black Agate Choker Necklace

Maryland State flag
Patuxent River Stone Agates are the official state gemstone of Maryland.

Minnesota State flag
Lake Superior Agates are the official gemstone of Minnesota.

Montana State flag
Montana Agates are the official state gemstone of Montana. Montana has also designated Montana Sapphires as its other official state gemstone.

Nebraska State flag
Prairie Agates are the official state rock of Nebraska. Its official gemstone is blue chalcedony, another type of quartz.

Oregon State flag (front side) Oregon State flag (back side)
Thunderegg Agate Geodes are the official state rock of Oregon. Its official state gemstone is Oregon Sunstone Labradorite.

South Dakota State flag
The Fairburn Agate is the official state gemstone of South Dakota. Its official state rock is rose quartz.

Tennessee State flag
The Tennessee Agate is the official state rock of Tennessee. Its official state gemstone is the Tennessee River Pearl.

Sterling Silver, Black Agate, and Blue Lace Agate Ring

Iowa State flag
Geode quartz is the official state gemstone for Iowa.

17 Black Agate Beaded Necklace
Luna Agate Moon Agate Lapidary Sterling Silver necklace

Luna Agate Moon Agate Lapidary Sterling Silver necklace

Handmade Artisan Sterling Silver 925 Necklace with unique one of a kind Imperial Jasper, 32.60 grams of marvelous handcrafted jewelry design. Only one piece availble ready to ship! It's unique worldwide necklace - simply piece of art in world of fine jewelry. Luna Agate Moon Agate Lapidary Sterling Silver necklace NECKLACE DETAILS: Weight: 32.60g; Material: Sterling Silver; Main stone: Imperial Jasper; Inner circumference: 18 inch; Drop Part: 1 1/8 inch; Clasp: S; Stamp / Mark: 925; Condition: New; Main color: brown; Shape: oval; Collection: Agra; Item Code: 2-cze-14-33


Natural Beauty!! Montana Agate Silver Sterling earrings

Natural Beauty!! Montana Agate Silver Sterling earrings

Handmade Artisan Sterling Silver 925 Earrings with unique one of a kind Montana Agate, 11.60 grams of marvelous handcrafted jewelry design. Only one piece availble ready to ship! It's unique worldwide earrings - simply piece of art in world of fine jewelry. Natural Beauty!! Montana Agate Silver Sterling earrings EARRINGS DETAILS: Weight: 11.60g; Material: Sterling Silver; Main stone: Montana Agate; Other stones: Citrine; Dimension: L -1 7/8, W -1/2, t -1/4 icnh; Backing: Hook; Stamp / Mark: 925; Condition: New; Main color: brown; Shape: oval; Collection: Agra; Item Code: 11-lis-14-31


Amazing Montana Agate Sterling Silver earrings

Amazing Montana Agate Sterling Silver earrings

Handmade Artisan Sterling Silver 925 Earrings with unique one of a kind Montana Agate, 5.60 grams of marvelous handcrafted jewelry design. Only one piece availble ready to ship! It's unique worldwide earrings - simply piece of art in world of fine jewelry. Amazing Montana Agate Sterling Silver earrings EARRINGS DETAILS: Weight: 5.60g; Material: Sterling Silver; Main stone: Montana Agate; Other stones: Turquoise; Dimension: 1 7/8, 1/2, 1/8 inch; Backing: Hook; Stamp / Mark: 925; Condition: New; Main color: brown; Shape: drop; Collection: Agra; Item Code: 1-maj-14-47


AWesome Color Of Agate Sterling Silver Pendant

AWesome Color Of Agate Sterling Silver Pendant

Handmade Artisan Sterling Silver 925 Pendant with unique one of a kind Agate, 17.60 grams of marvelous handcrafted jewelry design. Only one piece availble ready to ship! It's unique worldwide pendant - simply piece of art in world of fine jewelry. AWesome Color Of Agate Sterling Silver Pendant PENDANT DETAILS: Weight: 17.60g; Material: Sterling Silver; Main stone: Agate; Other stones: White Topaz; Dimension: L -2, W -7/8, T -3/8 inch; Inner Bail Diameter: 1/4 inch; Stamp / Mark: 925; Condition: New; Main color: blue; Shape: oval; Item Code: 21-lis-14-30


Beautiful Design!! Botswana Agate Sterling Silver necklace

Beautiful Design!! Botswana Agate Sterling Silver necklace

Handmade Artisan Sterling Silver 925 Necklace with unique one of a kind Botswana Agate, 128.40 grams of marvelous handcrafted jewelry design. Only one piece availble ready to ship! It's unique worldwide necklace - simply piece of art in world of fine jewelry. Beautiful Design!! Botswana Agate Sterling Silver necklace NECKLACE DETAILS: Weight: 128.40g; Material: Sterling Silver; Main stone: Botswana Agate; Other stones: Citrine Quartz, Hematite; Inner circumference: 16 inch; Drop Part: 4 inch; Clasp: S; Stamp / Mark: 925; Condition: New; Main color: multicolor; Shape: multi-shape; Collection: Agra; Item Code: 29-kwi-15-25


Sterling Silver Amethyst, Black Agate, Carnelian, and White Agate Necklace

Sterling Silver Amethyst, Black Agate, Carnelian, and White Agate Necklace

Starring the Southwest style Carolyn Pollack is known for, this necklace pops with gemstones and oxidized sterling silver. From Carolyn Pollack Sterling Jewelry.


Sterling Silver Black Agate, Blue Lace Agate, Rhodochrosite, and White Agate Necklace

Sterling Silver Black Agate, Blue Lace Agate, Rhodochrosite, and White Agate Necklace

Starring the Southwest style Carolyn Pollack is known for, this necklace pops with gemstones and oxidized sterling silver. From Carolyn Pollack Sterling Jewelry.


Sterling Silver & Black Agate Squash Blossom Statement 16 Inch Necklace

Sterling Silver & Black Agate Squash Blossom Statement 16 Inch Necklace

Prepare for compliments. This sterling silver necklace from American West Jewelry is full of wow-worthy elements, including a stunning naja design accented with vivid cabochons gemstones. Squash blossom stations appear along a double row of polished beads, with oval and round gemstones in serrated bezels providing even more pop. From American West Jewelry.


Positano Sterling Silver Blue Lace Agate & Variscite Gemstone Enhancer

Positano Sterling Silver Blue Lace Agate & Variscite Gemstone Enhancer

Twice the color, two times the style--this gemstone enhancer charm adds up to something special. From Carolyn Pollack Sterling Jewelry.


Agate cuff bracelet, 'Agate Twist' (Peru)

Agate cuff bracelet, 'Agate Twist' (Peru)

This exquisite sterling silver cuff bracelet is carefully hand crafted by Teodoro Melendez and his family. It features three oval shaped agate gemstones surrounded by a delicate twist motif. The dramatic cuff is a classy addition to any outfit.


Agate drop earrings Magnificent (Peru)

Agate drop earrings Magnificent (Peru)

Silver satin hosts red agate, the May birthstone, in a design named Kusa, or "magnificent" in Quechua. Crafted by hand, these contemporary earrings are designed by Leslie Granthon. .925 Sterling silver


Dendritic agate cufflinks Plenitude (India)

Dendritic agate cufflinks Plenitude (India)

Known as the stone of plenitude, dendritic agate shares its unique beauty with cufflinks designed by Shubhra Singh. According to gemstone lore, dendritic agate brings abundance in all aspects of life. The handsome cufflinks are crafted by hand of sterling silver featuring a lithe rope surrounding the milky white gems. .925 Sterling silver