Berzelius, Jöns Jakob
,
Essai sur la théorie des proportions chimiques et sur l' influence chimique de l' électricité
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es doubles, qui font voir comment les silicates de
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mê
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mes bases peuvent varier quant à la proportion relative de leurs principe
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constituants. </
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chimique.</
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Noms. # Formules.
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## SILICIAS ALUMINICO-CALCICUS.
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Basis = 3 \2.Ca + 2 \3.Al = C + A
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Var. 1: ma........... # {\2.Ca^3 \3.Si^2 + 2\3.Al \3.Si \\ CS + AS
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Var. 2: da........... # {\2.Ca^3 \3.Si^4 + 2\3.Al \3.Si \\ CS^2 + AS
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Var. 3: a.?.......... # {\2.Ca^3 \3.Si^4 + 2\3.Al \3.Si^2 \\ CS^2 + AS^2
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Var. 4: ta........... # {3\2.Ca \3.Si^2 + 2\3.Al \3.Si \\ CS^3 + AS
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Var. 5: ta........... # {3\2.Ca \3.Si^2 + 2\3.Al \3.Si^2 \\ CS^3 + AS^2
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Var. 6: ta........... # {3\2.Ca \3.Si^2 + 2\3.Al \3.Si^3 \\ CS^3 + AS^3
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Basis = 3 \2.Ca + 4 \3.Al = C + 2 A
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Var. 1: ma. Zoisite....... # {\2.Ca^3 \3.Si^2 + 4\3.Al \3.Si \\ C S + 2 A S
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Var. 2: da........... # {\2.Ca^3 \3.Si^4 + 4\3.Al \2.Si \\ CS^2 + 2 AS
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Var. 3: tia........... # {\2.Ca^3 \3.Si^4 + 4\3.Al \3.Si^2 \\ CS^2 + 2 AS^2
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Var. 4: ta........... # {3\2.Ca \3.Si^2 + 4\3.Al \3.Si \\ CS^3 + 2 AS
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Var. 5: ta........... # {3\2.Ca \3.Si^2 + 4\3.Al \3.Si^2 \\ CS^3 + 2 AS^2
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Var. 6: ta........... # {3\2.Ca \3.Si^2 + 4\3.Al \3.Si^3 \\ CS^3 + 2 AS^3
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