BETA

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  1. Mount Airy

    ... involving multiple species of feldspar are common as is zoning in feldspars. Accessory minerals include biotite , which is common ...

    Raven Mueller - 2015-08-12

  2. Greene County

    ... Granophyric textures are also present but rare. Zoning in feldspars is common. Accessory minerals include biotite , which ...

    Raven Mueller - 2015-08-12

  3. Weymouth

    ... intergrowth of feldspar and quartz are very common Zoning in feldspars is also prevalent, especially among larger phenocrysts. ...

    Ed FitzGerald - 2015-09-05