Analysis of Quebec Slip

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

Une analyse de 15 échantillons d'argiles locales
en tant que restes de la préhistorique Mer de
Champlain qui couvrait la majeure partie des
terres basses du Québec, il y a des millions d’années,
tel publiée par le gouvernement du Québec :

Jen analizo de 15 specimenoy de lokalay argiloy
kiel vestiĝoy de la prahistoria Maro de Champlain
kiu kovris la maĵoran parton de kebekiay malaltay
landoy, milionoyn pasintayn jaroyn, tiel eldonita
de kebekia ministraro :

In Matériaux du Céramiste Québecois
Julien Cloutier
http://juliencloutier.blogspot.ca/

Quebec Slip

SiO2 56.0
Al2O3 16.2
Fe2O3 5.6
TiO2 0.8
CaO 4.3
MgO 2.7
Alcali 4.5
L.O.I 7.7

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

---------------------------------------------
Analysis of Redart Clay

SiO2 68.2
Al2O3 16.3
Fe2O3 7.4
TiO2 1.1
CaO 0.3
MgO 1.7
Alcali 4.8
L.O.I. 4.8

From this analysis we have calculated
substitutions using common raw materials

Option I

Redart 75
Kaolin 7
Custer 7
Dolomite 8
Whiting 3

Option II

Redart 60
Ball clay 15
Custer 12
Dolomite 8
Whiting 3
RIO 1.5

Option III

Redart 71
Kaolin 8
Custer 10
Dolomite 8
Whiting 3
RIO 0.6

Option IV

Redart 68
Ball clay 11
Custer 10
Dolomite 8
Whiting 3
RIO 0.6

Option V

Redart 71
Ball clay 12
Custer 6
Dolomite 8
Whiting 3

Option VI

Redart 63
Ball clay 14
Custer 11
Dolomite 8
Whiting 3
RIO 1.2

Option VII

Redart 56
Ball clay 17
Custer 14
Dolomite 8
Whiting 3
RIO 2

Option VIII

Redart 77
Dolomite 8
Whiting 3
Ball Clay 12
Red Iron Oxide 0.2

Option IX

Redart 77
Nepheline/Syenite 12
Dolomite 7
Whiting 4