Pottery-Stone Database / Special grade

Special grade pottery stone, 10 samples

Results of TGA & Colors of the powder samples after measuring

Results of TMA & Colors of the sintered samples after measuring

No. Name Sampling date Vein or deposit Mining place Mining company Sampling place Grade or sort
021 USD0_01S March 29, 1980 Sarayama V. Denbeekoba Ueda Tohseki ? Special grade
035 USD0H16A June 11, 1981 Sarayama V. Denbeekoba Ueda Tohseki In the stack of third grade Small grain of special grade
040 USD0_21A November 15, 1983 Sarayama V. Denbeekoba Ueda Tohseki Middle level/tip Special grade
044 USI0_04S July 16, 1980 Sarayama V. Iguchiyama Ueda Tohseki Cliff/right Special grade
053 USI0_14A November 15, 1983 Sarayama V. Iguchiyama Ueda Tohseki Third level Special grade, shipment as second grade
090 USY0_02A November 15, 1983 Sarayama V. Yazirogura Ueda Tohseki ? Special grade without cleaning, uncommon
098 KKS__11A June 11, 1981 Kaigan V. Shimizuotoshi Kiyama Tohseki Inside drift Good rock, SK20+
102 KKS0_15A June 11, 1981 Kaigan V. Shimizuotoshi Kiyama Tohseki ?, Niiyana or Gosoh Special grade
105 KGG0_01S March 26, 1981 Murayama V. Gosoh Kiyama Tohseki Incline shaft working face Special grade, SK28, kaolin/sericite=1
198 SFD__05A March 26, 1981 Fukami V. Fukami Shin-ei Tohseki Inside drift White color, rough

No.	Name	Sampling date	Vein or deposit	Mining place	Mining company	Sampling place	Grade or sort
021	USD0_01S	March 29, 1980	Sarayama V.	Denbeekoba	Ueda Tohseki	?	Special grade
035	USD0H16A	June 11, 1981	Sarayama V.	Denbeekoba	Ueda Tohseki	In the stack of third grade	Small grain of special grade
040	USD0_21A	November 15, 1983	Sarayama V.	Denbeekoba	Ueda Tohseki	Middle level/tip	Special grade
044	USI0_04S	July 16, 1980	Sarayama V.	Iguchiyama	Ueda Tohseki	Cliff/right	Special grade
053	USI0_14A	November 15, 1983	Sarayama V.	Iguchiyama	Ueda Tohseki	Third level	Special grade, shipment as second grade
090	USY0_02A	November 15, 1983	Sarayama V.	Yazirogura	Ueda Tohseki	?	Special grade without cleaning, uncommon
098	KKS__11A	June 11, 1981	Kaigan V.	Shimizuotoshi	Kiyama Tohseki	Inside drift	Good rock, SK20+
102	KKS0_15A	June 11, 1981	Kaigan V.	Shimizuotoshi	Kiyama Tohseki	?, Niiyana or Gosoh	Special grade
105	KGG0_01S	March 26, 1981	Murayama V.	Gosoh	Kiyama Tohseki	Incline shaft working face	Special grade, SK28, kaolin/sericite=1
198	SFD__05A	March 26, 1981	Fukami V.	Fukami	Shin-ei Tohseki	Inside drift	White color, rough

Colors of the milled samples
No. Name X Y Z Whiteness
(Hunter) L a b Whiteness
(Lab)
021 USD0_01S 84.08 85.33 92.92 78.75 92.37 0.82 5.02 90.83
035 USD0H16A 81.89 83.11 82.47 69.89 91.16 0.80 10.18 86.50
040 USD0_21A 86.42 88.22 96.83 82.06 93.93 -0.13 4.62 92.36
044 USI0_04S 82.10 83.55 91.90 77.88 91.41 0.37 4.37 90.35
053 USI0_14A 85.77 86.41 97.33 82.48 92.96 2.02 2.99 92.09
090 USY0_02A 86.52 87.47 98.47 83.45 93.53 1.46 3.04 92.70
098 KKS__11A 80.41 80.17 89.09 75.50 89.54 3.61 3.68 88.34
102 KKS0_15A 83.85 84.94 94.27 79.89 92.16 1.11 3.87 91.19
105 KGG0_01S 84.17 85.10 86.82 73.58 92.25 1.43 8.77 88.21
198 SFD__05A 86.33 86.68 95.61 81.03 93.10 2.59 4.28 91.48

Colors of the milled samples
No.	Name	X	Y	Z	Whiteness (Hunter)	L	a	b	Whiteness (Lab)
021	USD0_01S	84.08	85.33	92.92	78.75	92.37	0.82	5.02	90.83
035	USD0H16A	81.89	83.11	82.47	69.89	91.16	0.80	10.18	86.50
040	USD0_21A	86.42	88.22	96.83	82.06	93.93	-0.13	4.62	92.36
044	USI0_04S	82.10	83.55	91.90	77.88	91.41	0.37	4.37	90.35
053	USI0_14A	85.77	86.41	97.33	82.48	92.96	2.02	2.99	92.09
090	USY0_02A	86.52	87.47	98.47	83.45	93.53	1.46	3.04	92.70
098	KKS__11A	80.41	80.17	89.09	75.50	89.54	3.61	3.68	88.34
102	KKS0_15A	83.85	84.94	94.27	79.89	92.16	1.11	3.87	91.19
105	KGG0_01S	84.17	85.10	86.82	73.58	92.25	1.43	8.77	88.21
198	SFD__05A	86.33	86.68	95.61	81.03	93.10	2.59	4.28	91.48

Chemical compositions (wt%)
No. Name SiO₂ Al₂O₃ Fe₂O₃ TiO₂ CaO MgO Na₂O K₂O Ig.loss
021 USD0_01S 79.82 13.73 0.29 0.01 0.04 0.09 0.08 3.72 1.86
035 USD0H16A 77.94 15.23 0.37 0.01 0.09 0.08 0.09 3.80 2.02
040 USD0_21A 78.44 14.93 0.33 0.01 0.09 0.13 0.39 3.08 2.23
044 USI0_04S 85.26 10.08 0.27 0.01 0.00 0.10 0.09 2.21 1.84
053 USI0_14A 78.74 15.05 0.33 0.01 0.04 0.12 0.08 2.58 2.76
090 USY0_02A 79.08 14.81 0.28 0.01 0.03 0.08 0.06 2.62 2.68
098 KKS__11A 79.67 14.24 0.39 0.02 0.05 0.10 0.07 2.98 2.34
102 KKS0_15A 78.38 13.88 0.80 0.02 0.14 0.20 0.07 2.97 3.41
105 KGG0_01S 80.35 13.73 0.46 0.01 0.00 0.00 0.10 1.77 3.41
198 SFD__05A 78.78 15.34 0.16 0.04 0.06 0.10 0.05 0.43 4.57

Chemical compositions (wt%)
No.	Name	SiO₂	Al₂O₃	Fe₂O₃	TiO₂	CaO	MgO	Na₂O	K₂O	Ig.loss
021	USD0_01S	79.82	13.73	0.29	0.01	0.04	0.09	0.08	3.72	1.86
035	USD0H16A	77.94	15.23	0.37	0.01	0.09	0.08	0.09	3.80	2.02
040	USD0_21A	78.44	14.93	0.33	0.01	0.09	0.13	0.39	3.08	2.23
044	USI0_04S	85.26	10.08	0.27	0.01	0.00	0.10	0.09	2.21	1.84
053	USI0_14A	78.74	15.05	0.33	0.01	0.04	0.12	0.08	2.58	2.76
090	USY0_02A	79.08	14.81	0.28	0.01	0.03	0.08	0.06	2.62	2.68
098	KKS__11A	79.67	14.24	0.39	0.02	0.05	0.10	0.07	2.98	2.34
102	KKS0_15A	78.38	13.88	0.80	0.02	0.14	0.20	0.07	2.97	3.41
105	KGG0_01S	80.35	13.73	0.46	0.01	0.00	0.00	0.10	1.77	3.41
198	SFD__05A	78.78	15.34	0.16	0.04	0.06	0.10	0.05	0.43	4.57

Mineral compositions (wt%)
No. Name Quartz Sericite Kaolin mineral Feldspar Calcite Siderite
021 USD0_01S 64.94 34.05 0.42 0.50 0.00 0.09
035 USD0H16A 66.32 30.13 2.24 0.99 0.20 0.13
040 USD0_21A 54.23 30.77 11.47 3.23 0.22 0.08
044 USI0_04S 69.67 21.55 8.28 0.50 0.00 0.00
053 USI0_14A 59.12 12.64 26.41 1.67 0.00 0.17
090 USY0_02A 54.76 27.45 17.29 0.50 0.00 0.00
098 KKS__11A 65.40 26.88 5.89 1.19 0.49 0.15
102 KKS0_15A 61.19 28.94 8.05 0.91 0.00 0.91
105 KGG0_01S 63.84 6.24 28.80 1.12 0.00 0.00
198 SFD__05A 57.98 0.01 41.34 0.55 0.01 0.11

Mineral compositions (wt%)
No.	Name	Quartz	Sericite	Kaolin mineral	Feldspar	Calcite	Siderite
021	USD0_01S	64.94	34.05	0.42	0.50	0.00	0.09
035	USD0H16A	66.32	30.13	2.24	0.99	0.20	0.13
040	USD0_21A	54.23	30.77	11.47	3.23	0.22	0.08
044	USI0_04S	69.67	21.55	8.28	0.50	0.00	0.00
053	USI0_14A	59.12	12.64	26.41	1.67	0.00	0.17
090	USY0_02A	54.76	27.45	17.29	0.50	0.00	0.00
098	KKS__11A	65.40	26.88	5.89	1.19	0.49	0.15
102	KKS0_15A	61.19	28.94	8.05	0.91	0.00	0.91
105	KGG0_01S	63.84	6.24	28.80	1.12	0.00	0.00
198	SFD__05A	57.98	0.01	41.34	0.55	0.01	0.11

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 : 1,000°C.
L_T : Total weight loss, L₄₀₀ : Weight loss of 400-1,000°C.
No. Name L_T
(wt%) L₄₀₀
(wt%) X Y Z Whiteness
(Hunter) L a b Whiteness
(Lab)
021 USD0_01S 2.46 1.73 82.78 83.46 91.22 77.31 91.36 1.87 4.75 89.96
035 USD0H16A 2.65 1.88 77.89 77.22 73.71 62.47 87.87 4.44 11.78 82.52
040 USD0_21A 2.76 2.11 83.58 84.50 90.98 77.10 91.92 1.43 5.67 90.03
044 USI0_04S 2.09 1.76 71.68 69.12 62.14 52.66 83.14 8.41 13.88 76.60
053 USI0_14A 3.25 2.67 83.42 84.49 90.95 77.08 91.92 1.14 5.68 90.06
090 USY0_02A 3.29 2.54 83.50 83.54 87.47 74.13 91.40 3.12 7.24 88.33
098 KKS__11A 2.64 2.23 79.45 79.67 87.45 74.11 89.26 2.68 4.39 88.09
102 KKS0_15A 3.68 3.30 83.44 83.44 91.12 77.22 91.35 3.20 4.80 89.60
105 KGG0_01S 3.75 3.31 68.38 65.12 64.63 54.77 80.70 10.04 9.00 76.46
198 SFD__05A 5.33 4.41 85.26 86.17 93.46 79.20 92.83 1.50 5.29 90.97

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 : 1,000°C. L_T : Total weight loss, L₄₀₀ : Weight loss of 400-1,000°C.
No.	Name	L_T (wt%)	L₄₀₀ (wt%)	X	Y	Z	Whiteness (Hunter)	L	a	b	Whiteness (Lab)
021	USD0_01S	2.46	1.73	82.78	83.46	91.22	77.31	91.36	1.87	4.75	89.96
035	USD0H16A	2.65	1.88	77.89	77.22	73.71	62.47	87.87	4.44	11.78	82.52
040	USD0_21A	2.76	2.11	83.58	84.50	90.98	77.10	91.92	1.43	5.67	90.03
044	USI0_04S	2.09	1.76	71.68	69.12	62.14	52.66	83.14	8.41	13.88	76.60
053	USI0_14A	3.25	2.67	83.42	84.49	90.95	77.08	91.92	1.14	5.68	90.06
090	USY0_02A	3.29	2.54	83.50	83.54	87.47	74.13	91.40	3.12	7.24	88.33
098	KKS__11A	2.64	2.23	79.45	79.67	87.45	74.11	89.26	2.68	4.39	88.09
102	KKS0_15A	3.68	3.30	83.44	83.44	91.12	77.22	91.35	3.20	4.80	89.60
105	KGG0_01S	3.75	3.31	68.38	65.12	64.63	54.77	80.70	10.04	9.00	76.46
198	SFD__05A	5.33	4.41	85.26	86.17	93.46	79.20	92.83	1.50	5.29	90.97

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, S_M : Maximum shrinkage, T₀ : Temperature at the maximum shrinkage, T₅ : Temperature at the expansion coefficient becomes 0.0005/°C, T_S5 : Temperature rectified using the correlative equation, T_SK : Nominal temperature equivalent to its SK.
No. Name W₁₀
(wt%) S_M
(%) T₀
(°C) T₅
(°C) T_S5
(°C) T_SK
(°C) SK X Y Z W
(Hunter) L a b W
(Lab)
021 USD0_01S 40.0 9.00 1430 1442 1442 1588 26+ 70.40 71.85 81.01 68.65 84.76 -0.09 2.67 84.53
035 USD0H16A 49.2 6.41 1422 1434 1427 1577 26 70.25 71.82 80.07 67.86 84.75 -0.34 3.30 84.39
040 USD0_21A 45.9 6.53 1422 1434 1430 1579 26 72.39 74.03 83.02 70.36 86.04 -0.39 3.02 85.71
044 USI0_04S 48.3 10.7 1471 1481 1475 1610 27 66.56 68.12 77.11 65.35 82.53 -0.49 2.38 82.37
053 USI0_14A 41.5 7.47 1482 1499 1498 1622 28- 72.26 73.98 83.93 71.13 86.01 -0.56 2.35 85.80
090 USY0_02A 42.0 7.99 1464 1480 1479 1612 27 72.88 73.85 84.51 71.62 85.94 0.99 1.85 85.78
098 KKS__11A 49.9 8.01 1444 1456 1449 1593 26+ 70.62 71.47 79.90 67.71 84.54 1.16 3.14 84.18
102 KKS0_15A 47.1 6.56 1510 1517 1512 1629 28 70.12 70.75 81.31 68.91 84.11 1.61 1.56 83.96
105 KGG0_01S 48.2 8.80 1481 1496 1490 1618 27+ 67.11 67.80 76.27 64.64 82.34 1.39 2.72 82.08
198 SFD__05A 44.6 4.82 1600 1600 1597 1653 29+ 75.07 76.62 89.70 76.02 87.53 -0.10 0.52 87.52
Last updated: August 1997

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, S_M : Maximum shrinkage, T₀ : Temperature at the maximum shrinkage, T₅ : Temperature at the expansion coefficient becomes 0.0005/°C, T_S5 : Temperature rectified using the correlative equation, T_SK : Nominal temperature equivalent to its SK.
No.	Name	W₁₀ (wt%)	S_M (%)	T₀ (°C)	T₅ (°C)	T_S5 (°C)	T_SK (°C)	SK	X	Y	Z	W (Hunter)	L	a	b	W (Lab)
021	USD0_01S	40.0	9.00	1430	1442	1442	1588	26+	70.40	71.85	81.01	68.65	84.76	-0.09	2.67	84.53
035	USD0H16A	49.2	6.41	1422	1434	1427	1577	26	70.25	71.82	80.07	67.86	84.75	-0.34	3.30	84.39
040	USD0_21A	45.9	6.53	1422	1434	1430	1579	26	72.39	74.03	83.02	70.36	86.04	-0.39	3.02	85.71
044	USI0_04S	48.3	10.7	1471	1481	1475	1610	27	66.56	68.12	77.11	65.35	82.53	-0.49	2.38	82.37
053	USI0_14A	41.5	7.47	1482	1499	1498	1622	28-	72.26	73.98	83.93	71.13	86.01	-0.56	2.35	85.80
090	USY0_02A	42.0	7.99	1464	1480	1479	1612	27	72.88	73.85	84.51	71.62	85.94	0.99	1.85	85.78
098	KKS__11A	49.9	8.01	1444	1456	1449	1593	26+	70.62	71.47	79.90	67.71	84.54	1.16	3.14	84.18
102	KKS0_15A	47.1	6.56	1510	1517	1512	1629	28	70.12	70.75	81.31	68.91	84.11	1.61	1.56	83.96
105	KGG0_01S	48.2	8.80	1481	1496	1490	1618	27+	67.11	67.80	76.27	64.64	82.34	1.39	2.72	82.08
198	SFD__05A	44.6	4.82	1600	1600	1597	1653	29+	75.07	76.62	89.70	76.02	87.53	-0.10	0.52	87.52