Gonnardite, Pyroxene Group, Phillipsite Subgroup
Specimen ID: THT-K07
Gonnardite : (Na,Ca)2(Si,Al)5O10·3H2O
Pyroxene Group : ADSi2O6
Phillipsite Subgroup : (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
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Photo added to mindat.org
“Gonnardite Crystals in spray form white,with Pyroxene green and Philipsite Crystals clear, p.w. 1.80 mm , coll. Cor Kokke , photo Ko Jansen. ”
Ko Jansen - 22nd November 2016
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