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  2. Gypsum - Wikipedia

    en.wikipedia.org/wiki/Gypsum

    Gypsum is a common mineral, with thick and extensive evaporite beds in association with sedimentary rocks. Deposits are known to occur in strata from as far back as the Archaean eon. [16] Gypsum is deposited from lake and sea water, as well as in hot springs, from volcanic vapors, and sulfate solutions in veins.

  3. Selenite (mineral) - Wikipedia

    en.wikipedia.org/wiki/Selenite_(mineral)

    Selenite, satin spar, desert rose, and gypsum flower are crystal habit varieties of the mineral gypsum.. All varieties of gypsum, including selenite and alabaster, are composed of calcium sulfate dihydrate (meaning that it has two molecules of water), with the chemical formula CaSO 4 ·2H 2 O. Selenite contains no significant selenium – The similar names both derive from Greek selḗnē ...

  4. Lustre (mineralogy) - Wikipedia

    en.wikipedia.org/wiki/Lustre_(mineralogy)

    Lustre (British English) or luster (American English; see spelling differences) is the way light interacts with the surface of a crystal, rock, or mineral. The word traces its origins back to the Latin lux , meaning "light", and generally implies radiance, gloss, or brilliance.

  5. Satin spar - Wikipedia

    en.wikipedia.org/wiki/Satin_spar

    Selenite is a fibrous variety of gypsum, [1]: 527 the most common form of satin spars; Gypsum, satin spar [2]: 429 in the form of a lustrous fibrous variety, not, however, defined as selenite; [3]: 217 Calcite or calcite spar is a fibrous variety [2]: 429 superficially resembling selenite, [4]: 169 but much less common in nature;

  6. 10,000 Steps Per Day Is A Myth—So How Much Should You Really ...

    www.aol.com/10-000-steps-per-day-120000168.html

    Here’s what experts have to say about how much you should actually walk per day for maximum benefits. The 10,000 steps per day rule isn’t based in science. Here’s what experts have to say ...

  7. List of mineral tests - Wikipedia

    en.wikipedia.org/wiki/List_of_mineral_tests

    Finger nail is 2.5, copper coin is 3.5, glass is 5.5 and steel is 6.5. Hardness scale is Talc is 1, Gypsum is 2, Calcite is 3, Fluorite is 4, Apatite is 5, Orthoclase Feldspar is 6, Quartz is 7, Topaz is 8, Corundum is 9 and Diamond is 10. Odor; Not always recommended. Does the mineral have an odor of oil, sulfur or something else or is there ...

  8. Aaron Rodgers Is ‘a Very Difficult Person to Understand ...

    www.aol.com/aaron-rodgers-very-difficult-person...

    Chopra says Rodgers was immediately “really trusting” with him and Hughes, adding that throughout their year working together on the documentary, Rodgers “was very open and vulnerable.”

  9. Today's Wordle Hint, Answer for #1262 on Monday ... - AOL

    www.aol.com/todays-wordle-hint-answer-1262...

    Today's Wordle Answer for #1262 on Monday, December 2, 2024. Today's Wordle answer on Monday, December 2, 2024, is GUILE. How'd you do? Next: Catch up on other Wordle answers from this week.

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