Answers to Problem Set 7 |
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1. a. Be =Y; 3 = n; Al =Y; 2 = n; Si
= Z; 6 = p; 18 = q |
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b. Ca = X;
Al = Y; 2(Al) = n; Si = Z; 2(Si) = p; 7(O) = q; (OH) = w; 2(OH) = r |
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2. |
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1 d |
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2 f |
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3 f |
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4 b |
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5 g |
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6 e |
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7 a |
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8 d |
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3. |
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1 g |
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2 f |
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3 e |
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4 d |
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5 a |
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6 g |
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4. |
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1 b |
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2 c |
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3 d |
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4 d |
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5 |
6. if both of the Z tetrahedra have a Si, then
the |
a zeolites |
ev. = 1 and no other
polyhedra can attach to the |
b garnets |
O. However, if at least one of the 2
Z tetrahedra are |
c labradorite |
Al, then the ev = 3/4 and more polyhedra can
share |
d sorosilicates |
on that O-----prove this by Pauling's rule # 2 |
e pyroxenes |
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f emerald |
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g hornblende |
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h rubellite |
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