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  2. Quartzite - Wikipedia

    en.wikipedia.org/wiki/Quartzite

    Quartzite. Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone. [1][2] Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and ...

  3. Baraboo Quartzite - Wikipedia

    en.wikipedia.org/wiki/Baraboo_Quartzite

    Baraboo Quartzite is a Precambrian geological formation [1] of quartzite, found in the region of Baraboo, Wisconsin. While pure quartzite is usually white or gray, Baraboo Quartzite is typically dark purple to maroon in color, due to the presence of iron (hematite) and other impurities. [2] Baraboo Quartzite may display strata created by ...

  4. Van Hise Rock - Wikipedia

    en.wikipedia.org/wiki/Van_Hise_Rock

    Van Hise Rock is a rock monolith located along Wisconsin Highway 136 near Rock Springs, Wisconsin. The rock is a geologically significant outcropping of Baraboo Quartzite. It serves as a monument to Charles Van Hise, a prominent Wisconsin geologist who studied the area extensively. [3] The rock was declared a National Historic Landmark in 1997 ...

  5. Porphyry (geology) - Wikipedia

    en.wikipedia.org/wiki/Porphyry_(geology)

    Porphyry (geology) Porphyry (/ ˈpɔːrfəri / POR-fə-ree) is any of various granites or igneous rocks with coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate -rich, generally aphanitic matrix or groundmass. In its non-geologic, traditional use, the term porphyry usually refers to the purple-red form of ...

  6. All 32 NHL teams are playing Tuesday. Frozen Frenzy ... - AOL

    www.aol.com/32-nhl-teams-playing-tuesday...

    Sixteen games will be played on ESPN cable or streaming channels. The games will have staggered starts 15 minutes to 45 minutes apart from 6 p.m. to 11 p.m. ET to allow for a live look-in, whip ...

  7. Greywacke - Wikipedia

    en.wikipedia.org/wiki/Greywacke

    Greywacke or graywacke (German grauwacke, signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness (6–7 on Mohs scale), dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or sand-size lithic fragments set in a compact, clay -fine matrix.

  8. Is It Safe to Take Ozempic While Pregnant? - AOL

    www.aol.com/safe-ozempic-while-pregnant...

    Specifically, it may increase the risk of birth defects, reduced growth, and early pregnancy loss. For some people, the benefits of taking Ozempic while pregnant may outweigh the risks. Ozempic ...

  9. Category:Quartzite formations - Wikipedia

    en.wikipedia.org/wiki/Category:Quartzite_formations

    W. Watson Ranch Quartzite. White Ledges Formation. White Wall (Taunus) Wood Canyon Formation. Wulingyuan.

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