Ads
related to: agate stone countertopslowes.com has been visited by 1M+ users in the past month
homedepot.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
Agate (/ ˈ æ ɡ ɪ t / AG-it) is the banded variety of chalcedony, which comes in a wide variety of colors. Agates are primarily formed within volcanic and metamorphic rocks.The ornamental use of agate was common in Ancient Greece, in assorted jewelry and in the seal stones of Greek warriors, while bead necklaces with pierced and polished agate date back to the 3rd millennium BCE in the ...
The Lake Superior agate is a type of agate stained by iron and found on the shores of Lake Superior. Its wide distribution and iron-rich bands of color reflect the gemstone's geologic history in Minnesota, Wisconsin, Nebraska, Iowa, Kansas, and Michigan. In 1969 the Lake Superior agate was designated by the Minnesota Legislature as the official ...
Fire agate, a variety of chalcedony, is a semi-precious natural gemstone discovered so far only in certain areas of central and northern Mexico and the southwestern United States (New Mexico, Arizona and California). [1] Approximately 24-36 million years ago these areas were subjected to massive volcanic activity during the Tertiary Period.
Chalcedony ( / kælˈsɛdəni / kal-SED-ə-nee, or / ˈkælsəˌdoʊni / KAL-sə-doh-nee) [2] is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. [3] These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic.
At present, agate and onyx differ only in the manner in which the stone is cut: if it is cut to show the layers of colour, it is called agate; if cut parallel to the lines, onyx. Formerly, an agate that was banded with well-defined colours was the onyx. The banded agate is used for the manufacturing of cameos.
Aventurine. Aventurine is used for a number of applications, including landscape stone, building stone, aquaria, monuments, and jewelry. Aventurine is a form of quartzite, characterised by its translucency and the presence of platy mineral inclusions that give it a shimmering or glistening effect termed aventurescence .
Ads
related to: agate stone countertopslowes.com has been visited by 1M+ users in the past month
homedepot.com has been visited by 1M+ users in the past month