(B.) Pigment Tests, 
Assay No. 
Raw. 
Calcined. 
397 
Colour, /yellowish- 
brown, moderate 
covering power 
Colour, chocolate- 
brown, moderate 
covering power 
398 
Colour, brown, poor 
covering power 
Colour, reddish- 
brown, poor cover¬ 
ing power 
399 
Colour, brown, poor 
covering powe 
Colour, light-red, 
poor covering power 
400 
Colour green, mode¬ 
rate covering power 
Colour, light-brown, 
moderate covering 
power 
llemarks. 
The covering power is low, 
considering the high iron 
content; the material is too 
dense to be regarded a"? 
sienna, but could be used as 
a pigment body 
Insufficient covering power 
and colour for a pigment 
Insufficient covering power 
and colour for a pigment 
The green colour is not 
attractive or rich enough 
for a pigment; the calcined 
material has fair covering 
power 
(C.) Pottery Tests, 
Assay No. 
Test 0. 
Test A. 
Muffle (1,100 degrees C.). 
Test B. and C. 
(1,340 degrees C.). 
398 
Shrinkage 3 per cent,, 
colour dull brown, 
firm brick 
Shrinkage 5 per cent., 
colour light red, 
hard biscuit 
Test pieces were completely 
vitrified and glazed 
399 
Shrinkage 3 per cent., 
colour dull brown, 
firm brick 
Shrinkage 4 per cent., 
colour light red, 
hard biscuit 
Test pieces were completely 
vitrified and glazed 
The clays are non-plastic, but easily worked up. At a moderate 
temperature they turn to a fine terra-cotta tile, but at higher tempera¬ 
ture are completely glazed and vitrified owing to the presence of fiuxes. 
The materials are suitable for Marseilles roofing tiles and other pot¬ 
tery manufacture requiring low temperatures—as drainage pipes, &c. 
(D.) General Assays and Analyses. 
Assay No. 
Description. 
Locality. 
Assays, &c. 
401 
Nodular limestone 
Mt. Pleasant (top), Wa- 
CaCOg 
15-0% 
bonga 
P2O5 
1-37% 
402 
Nodular limestone 
Mt. Pleasant, first cliff 
CaCOg 
9-0% 
south of Swinburne’s 
P2O5 
0-31% 
403 
Limonite 
Stoney Creek, Ed i 
EegOg 
76-5% 
P2O5 
2-82% 
404 
Limonite 
Stoney Creek, Edi 
^"6203 
65*54% 
P2O5 
2*45% 
413 
Phosphate ore 
Black Range, Parish of 
See complete analysis 
Edi 
414 
Gem stones 
Whitfield 
Determined as garnet 
