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  2. List of gemstones by species - Wikipedia

    en.wikipedia.org/wiki/List_of_gemstones_by_species

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  3. List of U.S. state minerals, rocks, stones and gemstones

    en.wikipedia.org/wiki/List_of_U.S._state...

    In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...

  4. Luminous gemstones - Wikipedia

    en.wikipedia.org/wiki/Luminous_gemstones

    The third luminous-gem theme involves serpents (of Hindu origin), or small animals (Spanish), with gems in their heads, or grateful animals repaying human kindness (Chinese and Roman) (Ball 1938: 501–505). Legends about snakes that carry a marvelous jewel either in their forehead or in their mouth are found almost worldwide.

  5. Carbuncle (gemstone) - Wikipedia

    en.wikipedia.org/wiki/Carbuncle_(gemstone)

    Carbuncle ( / ˈkɑːrbʌŋkəl /) is another name for a deep red almandine gemstone that has been cut with a smooth, convex face in a method called cabochon. [ 1] Traditionally, the term referred to any red gemstone, most often a red garnet. [ 2] Carbuncles and their chimeras have spanned three millennia. Intermingling red gems until the time ...

  6. Engraved gem - Wikipedia

    en.wikipedia.org/wiki/Engraved_gem

    Perhaps 14th century. An engraved gem, frequently referred to as an intaglio, is a small and usually semi-precious gemstone that has been carved, in the Western tradition normally with images or inscriptions only on one face. [ 1] The engraving of gemstones was a major luxury art form in the ancient world, and an important one in some later ...

  7. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    Jewelry applications of precious opal can be somewhat limited by opal's sensitivity to heat due primarily to its relatively high water content and predisposition to scratching. [11] Combined with modern techniques of polishing, a doublet opal can produce a similar effect to Natural black or boulder opal at a fraction of the price.

  8. List of mammals of Connecticut - Wikipedia

    en.wikipedia.org/wiki/List_of_mammals_of_Connecticut

    Dogs, wolves, coyotes, and foxes (Order Carnivora, Family Canidae) Red fox. Coyote ( Canis latrans) — first spotted in Connecticut in the mid-1950s, with the first 10 years of reports only in the northwestern part of the state, although they have since spread across the entire state. [ 17]

  9. Emerald - Wikipedia

    en.wikipedia.org/wiki/Emerald

    The virtue of the Emerald is to counteract poison. They say that if a venomous animal should look at it, it will become blinded. The gem also acts as a preservative against epilepsy; it cures leprosy, strengthens sight and memory, checks copulation, during which act it will break, if worn at the time on the finger. [39]