Quebec Slip

An analysis of 15 samples of local clays as remnants
of the prehistoric Sea of Champlain that covered
most of Quebec low lands, published by the Quebec
government.

Voici l'analyse de 15 argiles locales du Quebec qui
proviennent de la préhistorique Mer de Champlain
qui couvrait la majorité des terres basse du Quebec,
publiée par le gouvernement du Québec.

Jen la analizo de 15 lokaj Kebekiargiloj kiuj devenas
el la prahistoria Maro de Champlain kiu kovris la
plimulton de basaj Kebekiteroj, publikigitaj per la
Kebekigubernio. :

Na2O 2.0% Al2O3 18.0% SiO2 62.2%
K2O 3.0% TiO2 0.9%
MgO 3.0% Fe2O3 6.2%
CaO 4.8%

Na2O 0.14 Al2O3 0.79 SiO2 4.63
K2O 0.14 TiO2 0.05
MgO 0.33 Fe2O3 0.17
CaO 0.38

Alumina:Silica ratio is 1.00:5.87
Neutral:Acid ratio is 1.00:6.15
Alk:Neut:Acid ratio is 1.00:0.79:4.85

Expansion: 68.2 x 10e-7 per degree C

Ste-Anne de Sorel Slip Glaze
http://ste-annedesorelslipglaze.blogspot.com/

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This analysis is very close to Albany slip’s,
this material is not available anymore.
Cette analyse est très proche de celle de
l'Albany slip qui n'est plus diaponible
Tio analizo estas tre proksima de argilo
“Albany” kiu ne pli estas havebla :

Na2O 0.9% Al2O3 16.2% SiO2 63.8%
K2O 3.5% TiO2 0.4%
MgO 3.0% Fe2O3 5.8%
CaO 6.4%

Na2O 0.06 Al2O3 0.66 SiO2 4.42
K2O 0.16 TiO2 0.02
MgO 0.31 Fe2O3 0.15
CaO 0.48

Alumina:Silica ratio is 1.00:6.71
Neutral:Acid ratio is 1.00:6.97
Alk:Neut:Acid ratio is 1.00:0.66:4.59

Expansion: 66.2 x 10e-7 per degree C
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Here is Alberta slip’s.
Voice celle de l'Alberta slip.
Jen tiu de argilo « Alberto » :

Na2O 2.0% Al2O3 14.6% SiO2 64.8%
K2O 3.3% TiO2 0.5%
MgO 3.3% Fe2O3 5.0%
CaO 6.3%
BaO 0.2%

Na2O 0.12 Al2O3 0.54 SiO2 4.09
K2O 0.13 TiO2 0.02
MgO 0.31 Fe2O3 0.12
CaO 0.43
BaO 0.00

Alumina:Silica ratio is 1.00:7.56
Neutral:Acid ratio is 1.00:7.82
Alk:Neut:Acid ratio is 1.00:0.54:4.23

Expansion: 68.5 x 10e-7 per degree C
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Substitutions for Quebec Slip :

http://quebecslipsubstitutions.blogspot.ca/