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  2. Apatite - Wikipedia

    en.wikipedia.org/wiki/Apatite

    Apatite is the defining mineral for 5 on the Mohs scale. [11] It can be distinguished in the field from beryl and tourmaline by its relative softness. It is often fluorescent under ultraviolet light. [12] Apatite is one of a few minerals produced and used by biological micro-environmental systems. [7]

  3. List of gemstones by species - Wikipedia

    en.wikipedia.org/wiki/List_of_gemstones_by_species

    Calcite. Manganoan calcite (var.); Caledonite; Canasite; Cancrinite. Vishnevite; Carletonite; Carnallite; Cassiterite; Catapleiite; Cavansite; Celestite; Ceruleite ...

  4. Pegmatite - Wikipedia

    en.wikipedia.org/wiki/Pegmatite

    Rose muscovite from the Harding pegmatite mine Blue apatite crystals at the Harding pegmatite mine. Pegmatites form under conditions in which the rate of new crystal nucleation is much slower than the rate of crystal growth. Large crystals are favored. In normal igneous rocks, coarse texture is a result of slow cooling deep underground. [14]

  5. List of minerals by optical properties - Wikipedia

    en.wikipedia.org/wiki/List_of_minerals_by...

    Optical properties of common minerals Name Crystal system Indicatrix Optical sign Birefringence Color in plain polars Anorthite: Triclinic: Biaxial (-) 0.013

  6. GOLD - Wikipedia

    en.wikipedia.org/wiki/GOLD

    Gold, a chemical element; Genomes OnLine Database; Global-scale Observations of the Limb and Disk, a NASA Explorer Mission of Opportunity; GOLD (parser), an open-source parser-generator of BNF-based grammars; Graduates of the Last Decade, an Institute of Electrical and Electronics Engineers program to garner more university level student members

  7. Ravens suspend WR Diontae Johnson for 1 game after he refused ...

    www.aol.com/sports/ravens-suspending-wr-diontae...

    The Baltimore Ravens have suspended wide receiver Diontae Johnson for one game due to “conduct detrimental to the team,” the team announced Wednesday afternoon.

  8. Her daughter's suicide shocked the community. Now, she's ...

    www.aol.com/her-daughters-suicide-shocked...

    "It's almost like it's heart disease," Nugent says. "Sometimes you have a heart attack and you survive and you get medicine and you get treatment, and you live the rest of your life.

  9. Scapolite - Wikipedia

    en.wikipedia.org/wiki/Scapolite

    The analogy is a very close one, and this theory receives much support from the fact that in Canada (at various places in Ottawa and Ontario) there are numerous valuable apatite vein deposits. They lie in basic rocks such as gabbro and pyroxenite , and these in the neighborhood of the veins have been extensively scapolitized, like the spotted ...

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