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apophyllite

   Also found in: Encyclopedia, Wikipedia 0.03 sec.
a·poph·yl·lite  (-pf-lt, p-flt)
n.
A white, pale pink, or pale green crystalline mineral, essentially KCa4Si8O20(F,OH)·8H2O.
apophyllite [əˈpɒfɪˌlaɪt ˌæpəˈfɪlaɪt]
n
(Earth Sciences / Minerals) a white, colourless, pink, or green mineral consisting of a hydrated silicate of calcium, potassium, and fluorine in tetragonal crystalline form. It occurs in cracks in volcanic rocks. Formula: KCa4(Si4O10)2(OH1F).8H2O
[from French, from apo- + Greek phullon leaf + -ite1; referring to its tendency to exfoliate]


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The most striking result was seen in the growth of lysozyme on the mineral apophyllite.
Minerals for growth: mineral surfaces turn out to be useful platforms ... by Peterson, Ivars / Science News
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