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Product Information About TOKAI KOGYO Analysis Service Office Location Affiliated Company
Construction Material and Silica for ALC

| Izu Silica Rock | Domestic Silica Rock | Silica Sand for Road Aggregate Material |

Izu Silica Rock
"Izu Silica Rock" is come and produced from our "Izu Silica Rock Mines" at Ugusu, Nishiizu-cho, Kamo-gun, Shizuoka (West coast of Izu Peninsula)

Tokai Izu Silica Deposit, generated by hydrothermal process, is a very rare silica deposit in the world, in its formation and magnitude of the vast reserve. It is said that the mother rock of this deposit consists of volcanic rocks such as andesite,and is what metamorphosed under the action of volcanic boilling water,erupting gas,hot spring,etc.


Izu Silica Rock

Microscope photo

High quality and stable Porous and easy to be grinded

Crystallized quartz grain sizes are uniform.

Reactivity of quartz grain are good

Grade Used for Package Chemical composition Grain size Moisture
Izu Silica Rock Construction material Bulk Igloss
SiO2
Al2O3
Fe2O3
SO3
2%min
92%min
3%max
2%max
3%max
30mm max 含水
Izu Silica Flour Insulation material (calcium silicate products) Flexible cotainer bag, Paper bag SiO2
Al2O3
Fe2O3
SO3
95%max
1.5%max
0.15%max
0.5%max
5,000
~5,500
cm2/gr
Dryness
Izu Crushed Silica Stone Carrier for agricultural chemicals Flexible cotainer bag SiO2
Al2O3
Fe2O3
95%max
1.5%max
1%max
300
~1,000µ
Dryness


Shiba-Boat Bldg 6F, Shiba 3-1-15, Minato-ku Tokyo, Japan 105-0014
TOKAI KOGYO Co., Ltd Silica Resources Dep. Sales Div.
Phone 81-3-5419 9012 Facsimile 81-3-5419 9018




Tokai Kanso Silica Sand
Grade Used for Package Chemical composition Grain size Moisture
Aichi Silica Rock ALC
Construction material
Ferroalloy
Bulk SiO2
Al2O3
Fe2O3
90%min
3%max
2%max
40mm max  
Itaga Silica Rock ALC Bulk SiO2
Al2O3
Fe2O3
90% min
4% max
0.5~2.5%
30mm max  




Silica Sand For Road Aggregate Material
Grade Grain Size Chemical Composition
Yakusa Sand Yakusa #3 2,360~425μ SiO2 95%
Al2O3 2.5%
Fe2O3 0.1%
yakusa #4 1,180~150μ
Yakusa #5 850~106μ
Yakusa #6 600~75μ
Yakusa #7 < 425μ
Yakusa #8 < 300μ
 Jinya Sand Jinya #1 3,350~850μ SiO2 94% 
Al2O3 3.5%
Fe2O3 0.7%
Jinya #2 2,360~600μ
Jinya #3 1,700~600μ
Jinya #4 1,180~300μ
Jinya #5 850~75μ
Jinya #6 600~53μ
 Kashima Sand Kashima #1 4,750~1,700μ SiO2 86.2%
Al2O3 8.2%
Fe2O3  1%
Kashima #2 3,350~600μ
Kashima #3 2,350~300μ
Kashima #4 850~150μ
Kashima #5 425~53μ
Tokai Sanage 1~3mm
3~6mm
5~8mm
Seto Kotsuzai (aggregate) 3~6mm
Mikawa Silica Sand various grain size
Chromite Sand various grain size
Slug ( Ni・Cu・Fe ) various grain size
Custom-designed material Filtration materials, Adjustment materials of the basicity to use to a smelting furnace



Shiba-Boat Bldg 6F, Shiba 3-1-15, Minato-ku Tokyo, Japan 105-0014
TOKAI KOGYO Co., Ltd Silica Resources Dep. Sales Div.
Phone 81-3-5419 9012 Facsimile 81-3-5419 9018

Aburazuri 393, Ohata-machi, Toyota-shi, Aichi-Pref, Japan 470-0355
TOKAI KOGYO Co., Ltd Nagoya Sales Office.
Phone 81-565-48 8221 Facsimile 81-565-48 5364


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