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Clays and Clay Products

Clays are earthy, fine grained rocks composed mainly of minerals of secondary origin - the clay minerals - among which the most predominant are the hy• drous aluminum silicates. The clay minerals, formed by the chemical weathering or alteration of aluminous minerals such as feldspar and mica, are generally clas•sified into three major groups based on detailed chem• istry and crystalline structure - the kaolinite group, the montmorillonite group and the illite group. Clay deposits suitable for the manufacture of ceramic prod• ucts may include nonclay niinerals such as quartz. cal•-cite, dolomite, feldspar, gypsum, mica. iron-bearing minerals and organic matter. The nonclay minerals may. or may not be deleterious, depending upon indi• vidual amounts present and on the particular applica• tion for which the clay is intended.
The commercial value of clays, and of shales that are similar in composition to clays, depends mainly on their physical properties - plasticity, strength, shrinkage, vitrification range and refractoriness, fired colour, porosity and absorption - as well as on the proximity of any given deposit to growth centres in which clay products will be consumed.

Ketersediaan
#
Pusat Sumber Daya Mineral, Batubara dan Panas Bumi - Jln. Soekarno Hatta No. 444, Bandung, Jawa Barat PMB LU 1974 - 7
PMB LU19747
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
PMB LU 1974 - 7
Penerbit
Bandung : Pusat Sumber Daya Geologi.,
Deskripsi Fisik
11 halaman, tidak berwarna, cover biru
Bahasa
English
ISBN/ISSN
-
Klasifikasi
-
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
Clays
Info Detail Spesifik
-
Pernyataan Tanggungjawab
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