XRD, TGA and TMA Charts (No.121)
| No. | Name | Sampling date | Vein or deposit | Mining place | Mining company | Sampling place | Grade or sort |
|---|---|---|---|---|---|---|---|
| 121 | KRT__14A | November 13,1982 | Tomioka D. | Tomioka | Kiyama Tohseki | Shioiri, cliff / left | ? |
| Colors of the milled samples | |||||||
|---|---|---|---|---|---|---|---|
| X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab) |
| 78.36 | 79.72 | 80.66 | 68.36 | 89.29 | 0.41 | 8.94 | 86.04 |
| Chemical compositions (wt%) | ||||||||
|---|---|---|---|---|---|---|---|---|
| SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss |
| 74.29 | 15.44 | 0.97 | 0.04 | 0.09 | 0.31 | 2.99 | 3.78 | 1.85 |
| Mineral compositions (wt%) | |||||
|---|---|---|---|---|---|
| Q : Quartz | M : Sericite | K : Kaolin mineral | F : Feldspar | C : Calcite | S : Siderite |
| 44.52 | 24.47 | 2.58 | 28.01 | 0.00 | 0.42 |
| Results of TGA and Colors of the Powder Samples after Measuring | |||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
The conditions for TGA were sample weight : about 180mg, heating rate : 20°C/min, ended temperature : 1000°C.
LT : Total weight loss, L400 : Weight loss of 400-1000°C. LT (wt%) | L400 (wt%) | X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab)
| 2.25 | 1.74 | 70.82 | 69.45 | 60.30 | 51.10 | 83.34 | 5.85 | 15.44 | 76.54
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| Results of TMA and Colors of the Sintered Samples after Measuring | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
The conditions for TMA were compaction pressure : 250MPa, pellet diameter : 10mm, thickness : about 3mm, heating rate : 10°C/min, loading : 10g.
W10 : Contents of particles larger than 10µm, SMax : Maximum shrinkage, T0 : Temperature at the maximum shrinkage, T5 : Temperature at the expansion coefficient becomes 0.0005/°C, TS5 : Temperature rectified using the correlative equation, TSK : Nominal temperature equivalent to its SK. W10 | (wt%) SMax | (%) T0 | (°C) T5 | (°C) TS5 | (°C) TSK | (°C) SK | X | Y | Z | W | (Hunter) L | a | b | W | (Lab) 44.3 | 8.93 | 1269 | 1286 | 1283 | 1425 | 15- | 50.43 | 51.36 | 47.90 | 40.59 | 71.67 | 0.19 | 10.54 | 69.77
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