Hawthorne Fireclay #35
|
Code # L2950 |
Location BD 810 |
Notes
This burns straw color cone 6 to 10 with fine specks. Higher temperature fired bars have light tan solubles on the surface.
Has about the same degree of fired maturity across the entire cone 6-11 range! By cone 10 it is a little less mature than a typical rustic stoneware.
Plasticity is fairly low.
Pictures
Testdata
SHAB - Shrinkage/Absorption
| DLEN | FLEN | FWT | BWT | CONE | RDIA | DSHR | FSHR | ABS | |
| 11 | 95.60 | 88.02 | 40.08 | 41.36 | 11.2 | 40.2 | 4.4% | 7.9% | 3.2% |
| 12 | 95.69 | 88.43 | 41.35 | 42.69 | 10.6R | NA | 4.3% | 7.6% | 3.2% |
| 10 | 95.49 | 88.04 | 39.50 | 40.85 | 10.1 | 39.4 | 4.5% | 7.8% | 3.4% |
| 9 | 95.47 | 88.07 | 40.45 | 42.06 | 9 | 36.1 | 4.5% | 7.8% | 4.0% |
| 8 | 95.41 | 88.27 | 40.07 | 42.05 | 8.2 | 33.9 | 4.6% | 7.5% | 4.9% |
| 7 | 95.41 | 88.22 | 39.80 | 41.61 | 8.1 | 34 | 4.6% | 7.5% | 4.5% |
| 6 | 95.58 | 88.62 | 40.87 | 43.01 | 6 | 28.4 | 4.4% | 7.3% | 5.2% |
SOLU - Soluble Salts
| DRY | FIRE | GLAZ | |
| 1 | V.LITE | DARK | NIL |
DFAC - Drying Factor
| DFAC | |
| 1 | A |
LDW - LOI/Density/Water Content
| WWGT | DWGT | FWGT | H2O | LOI | DENS | |
| 1 | 22.58 | 18.45 | 16.60 | 18.3% | 10.0% |
XML (to paste into Insight)
Born: 1998-02-13, Modified: 2026-09-19 00:33:48
z=jWcB2Dvu17, id=69314, person_id=10, group_id=58
OM #4 Ball Clay (50:50 raw:calcine)
|
Code # L3254 |
Location BD 770 |
Notes
To test: 1/2 calcine and 1/2 regular (to plastic to mix pure).
Mixed 190 grams of calcined with 250 grams of raw (to compensate for the LOI).
Color is grey to a heavy grey scum on 10R bar.
A vitreous ball clay, reaching zero porosity by cone 10. Accompanied by a very high firing shrinkage.
Pictures
Fired test bars
Testdata
SHAB - Shrinkage/Absorption
| DLEN | FLEN | FWT | BWT | CONE | RDIA | DSHR | FSHR | ABS | |
| 11 | 92.75 | 81.87 | 31.57 | 31.58 | 11.7 | 42 | 7.3% | 11.7% | 0.0% |
| 10 | 92.87 | 82.02 | 31.53 | 31.59 | 10.8 | 40 | 7.1% | 11.7% | 0.2% |
| 12 | 93.07 | 82.37 | 30.93 | 31.90 | 10.5R | 6.9% | 11.5% | 3.1% | |
| 9 | 92.87 | 82.35 | 31.56 | 31.71 | 9.8 | 38 | 7.1% | 11.3% | 0.5% |
| 8 | 92.89 | 82.80 | 29.63 | 30.91 | 8.2 | 34 | 7.1% | 10.9% | 4.3% |
XML (to paste into Insight)
Born: 2003-12-04, Modified: 2026-09-19 01:07:50
z=9QmchofubC, id=64748, person_id=10, group_id=58
Cedar Heights Goldart clay
|
Code # L3320 |
Location BD1079 |
Notes
Dewaters fairly quickly, it feels a little like Plainsman 3B, an illitic clay. Plasticity is about the same as a pottery body or a little lower.
It is a light grey in the wet state.
Dry strength is not great.
Fired bars are similar to Plainsman H550, a cone 10 stoneware; this is a little more vitreous and little more tan colored.
Pictures
Testdata
SHAB - Shrinkage/Absorption
| DLEN | FLEN | FWT | BWT | CONE | RDIA | DSHR | FSHR | ABS | |
| 11 | 93.62 | 87.82 | 36.44 | 36.47 | 12.4 | N/A | 6.4% | 6.2% | 0.1% |
| 12 | 93.75 | 87.90 | 37.47 | 37.89 | 10.6R | 6.3% | 6.2% | 1.1% | |
| 9 | 93.61 | 87.82 | 37.68 | 37.14 | 9.3 | 37 | 6.4% | 6.2% | -1.4% |
| 8 | 93.51 | 87.81 | 38.74 | 39.64 | 8.1 | 33 | 6.5% | 6.1% | 2.3% |
| 7 | 93.72 | 88.21 | 35.97 | 37.15 | 7 | 31 | 6.3% | 5.9% | 3.3% |
| 10 | 93.56 | 87.71 | 38.01 | 38.04 | ~11.6 | 6.4% | 6.3% | 0.1% |
DFAC - Drying Factor
| DFAC | |
| 1 | C110 |
CLWC - Clay Water Content - Powder, Plastic
| PUGW | PUGD | POW% | PUG% | |
| 1 | 29.16 | 22.85 | 21.6% |
SIEV - Sieve Analysis 35-325 Wet
| TOT | 65M | 100M | 150M | 200M | 325M | |
| 1 | 50 | TR | .12 | .94 | 3.57 | 8.1 |
XML (to paste into Insight)
Born: 2003-03-05, Modified: 2026-09-19 01:05:31
z=YbTWrSHC45, id=65014, person_id=10, group_id=58
