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  2. Ruby - Wikipedia

    en.wikipedia.org/wiki/Ruby

    Ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, alongside amethyst, sapphire, emerald, and diamond. [3]

  3. List of rubies by size - Wikipedia

    en.wikipedia.org/wiki/List_of_rubies_by_size

    A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide).Other varieties of gem-quality corundum are called sapphires.Ruby is one of the traditional cardinal gems, together with amethyst, sapphire, emerald, and diamond. [1]

  4. History of ancient numeral systems - Wikipedia

    en.wikipedia.org/wiki/History_of_ancient_numeral...

    Similar artifacts from contemporary societies, like those of Australia, also suggest that such notches can serve mnemonic or conventional functions, rather than meaning numbers. [11] The Ishango bone is an artifact with a sharp piece of quartz affixed to one end, perhaps for engraving. It has been dated to 25,000 years ago. [13]

  5. What are angel numbers? A guide to the numeric ... - AOL

    www.aol.com/angel-numbers-guide-numeric...

    Angel numbers are repeating number sequences, often used as guides for deeper spiritual exploration. Ranging from 000 to 999 , each sequence carries its own distinct meaning and energy.

  6. Numerology - Wikipedia

    en.wikipedia.org/wiki/Numerology

    The term arithmancy is derived from two Greek words – arithmos (meaning number) and manteia (meaning divination). "Αριθμομαντεία" Arithmancy is thus the study of divination through numbers. [3] Although the word "arithmancy" dates to the 1570s, [4] the word "numerology" is not recorded in English before c. 1907. [5]

  7. Emerald - Wikipedia

    en.wikipedia.org/wiki/Emerald

    Growth occurs at the rate of 1 mm per month, a typical seven-month growth run produces emerald crystals 7 mm thick. [ 34 ] Hydrothermal synthetic emeralds have been attributed to IG Farben , Nacken, Tairus , and others, but the first satisfactory commercial product was that of Johann Lechleitner of Innsbruck , Austria, which appeared on the ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Sunrise Ruby - Wikipedia

    en.wikipedia.org/wiki/Sunrise_Ruby

    The Sunrise Ruby. The Sunrise Ruby [1] [2] [3] has been the world's most expensive ruby, most expensive coloured gemstone, and most expensive gemstone other than a diamond [2] [3] [4] until the discovery of the Estrela de Fura. Originally mined in Myanmar, its current name is derived from a poem of the same name, written by the 13th-century ...