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Bessborough Hotel (Sedimentary)

Bessborough Hotel (Sedimentary). Building Stone: Tyndall Stone Geologic Stone: limestone, dolostone Age: Ordovician (450 My) Minerals: calcite =CaCO 3 , dolomite = CaMg (CO 3 ) 2 Fossil: crinoid. Bessborough Hotel (Igneous). Building Stone: Stanstead Grey Granite

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Bessborough Hotel (Sedimentary)

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  1. Bessborough Hotel (Sedimentary) Building Stone: Tyndall Stone Geologic Stone: limestone, dolostone Age: Ordovician (450 My) Minerals: calcite =CaCO3, dolomite =CaMg(CO3) 2 Fossil: crinoid

  2. Bessborough Hotel (Igneous) Building Stone: Stanstead Grey Granite Geologic Stone: Granite Age: ??? Minerals: Quartz (SiO 2), feldspars, hornblende and micas

  3. Feldspar • XAl(1-2) Si(3-2) O8 . The X in the formula can be sodium, Na and/or potassium, K and/or calcium, Ca. - See more at: http://www.galleries.com/Feldspar_Group#sthash.cBF9oWGK.dpuf • K feldspar is pink, Na feldspar is grey

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