enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Agate - Wikipedia

   en.wikipedia.org/wiki/Agate

   Agate (/ ˈ æ ɡ ɪ t / AG-it) is a variety of chalcedony, [1] 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, [2] while bead necklaces with pierced and polished agate date back to the 3rd millennium BCE in the Indus ...

3. Thunderegg - Wikipedia

   en.wikipedia.org/wiki/Thunderegg

   A characteristic feature of thundereggs is that (like other agates) the individual beds they come from can vary in appearance, though they can maintain a certain specific identity within them. Thunderegg is not synonymous with either geode or agate. A geode is a simple term for a rock with a hollow in it, often with crystal formation/growth.

4. Fire agate - Wikipedia

   en.wikipedia.org/wiki/Fire_agate

   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.

5. Category:Agates - Wikipedia

   en.wikipedia.org/wiki/Category:Agates

   Pages in category "Agates" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. ...

6. List of minerals - Wikipedia

   en.wikipedia.org/wiki/List_of_minerals

   Varieties that are not valid species: Adamantine spar (variety of corundum) Agate (variety of chalcedony and quartz) Alabaster (variety of gypsum) Alexandrite (variety of chrysoberyl) Allingite (synonym of amber) Alum; Amazonite (variety of microcline) Amethyst (purple variety of quartz) Ametrine (variety of quartz) Ammolite (organic; also a ...

7. Moss agate - Wikipedia

   en.wikipedia.org/wiki/Moss_agate

   Moss agate pebble, 1 inch (25 mm) long Montana moss agate. Moss agate is a semi-precious gemstone formed from silicon dioxide.It is a form of chalcedony which includes minerals of a green color embedded in the stone, forming filaments and other patterns suggestive of moss. [1]

8. Aqeeq - Wikipedia

   en.wikipedia.org/wiki/Aqeeq

   A geode of chalcedony richly colored by hematite that gives it its rusty hues and marks it as Akik [contradictory]. Aqeeq, akik or aqiq (Arabic: العقيق) means quartz in Arabic, and agate in Turkish, however in the context of rings usually refers to a ring set with a chalcedony stone.

9. Lake Superior agate - Wikipedia

   en.wikipedia.org/wiki/Lake_Superior_agate

   The gas pockets in which the agates formed were primarily small, about 1 cm in diameter. A few Lake Superior agates have been found that are 22 cm in diameter with a mass exceeding 10 kilograms. Very large agates are extremely rare. The most common type of Lake Superior agate is the fortification agate with its eye-catching banding patterns ...