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  2. Off the Grid: Sally breaks down USA TODAY's daily crossword ...

    www.aol.com/off-grid-sally-breaks-down-050018735...

    Explore daily insights on the USA TODAY crossword puzzle by Sally Hoelscher. Uncover expert takes and answers in our crossword blog.

  3. Fayalite - Wikipedia

    en.wikipedia.org/wiki/Fayalite

    Fayalite (Fe 2 SiO 4, commonly abbreviated to Fa) is the iron-rich end-member of the olivine solid-solution series. In common with all minerals in the olivine group, fayalite crystallizes in the orthorhombic system (space group Pbnm) with cell parameters a 4.82 Å, b 10.48 Å and c 6.09 Å.

  4. Endmember - Wikipedia

    en.wikipedia.org/wiki/Endmember

    An endmember (also end-member or end member) in mineralogy is a mineral that is at the extreme end of a mineral series in terms of purity of its chemical composition. Minerals often can be described as solid solutions with varying compositions of some chemical elements , rather than as substances with an exact chemical formula.

  5. Microsoft Puzzle Hunt - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Puzzle_Hunt

    Memorable Events/Puzzles: Puzzles were given in three waves, with the puzzles in wave three having the same names as those in the first two waves, but a slightly different puzzle in keeping with the idea that the villain went back and changed time. Chicago Fire, a crossword puzzle on red construction paper, was a memorable puzzle in that it ...

  6. Crossword abbreviations - Wikipedia

    en.wikipedia.org/wiki/Crossword_abbreviations

    Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE. "Say" for EG, used to mean "for example". More obscure clue words of this variety include: "Model" for T, referring to the Model T.

  7. Forsterite - Wikipedia

    en.wikipedia.org/wiki/Forsterite

    Orange forsterite with a portion of tephroite. Pure forsterite is composed of magnesium, oxygen and silicon. The chemical formula is Mg 2 SiO 4.Forsterite, fayalite (Fe 2 SiO 4) and tephroite (Mn 2 SiO 4) are the end-members of the olivine solid solution series; other elements such as Ni and Ca substitute for Fe and Mg in olivine, but only in minor proportions in natural occurrences.

  8. Peridot - Wikipedia

    en.wikipedia.org/wiki/Peridot

    Increasing iron concentration ultimately forms the iron-rich end-member of the olivine solid solution series fayalite. [13] A study of Chinese peridot gem samples determined the hydro-static specific gravity to be 3.36 . The visible-light spectroscopy of the same Chinese peridot samples showed light bands between 493.0–481.0 nm, the strongest ...

  9. Crossword - Wikipedia

    en.wikipedia.org/wiki/Crossword

    A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter, while the black squares are used to ...