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NUSA TENGGARA TIMUR EAST NUSA TENGGARA 1 ...

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cadangan sebesar 17.370.000 m 3.<br />

17) Silika<br />

Merupakan mineral yang mengisi<br />

urat-urat pada batu gamping<br />

dengan warna abu-abu sampai<br />

coklat kotor dan merupakan<br />

pecahan konkoidal. Digunakan<br />

dalam industri metalurgi<br />

(refraktor), silikon, keramik,<br />

bahan abrasive dan permurnian<br />

logam. Lokasi cadangan bahan<br />

galian silika banyak terdapat di<br />

Kabupaten Manggarai dengan<br />

cadangan sebesar 518.150.000<br />

m 3.<br />

18) Toseki<br />

Merupakan hasil ubahan<br />

hidrotermal dan batuan tufa,<br />

berwarna putih agak kompak.<br />

Digunakan sebagai bahan baku<br />

dan campuran keramik, refraktor,<br />

isolator, dll. Cadangan bahan<br />

galian toseki ini banyak terdapat<br />

di Kabupaten Manggarai sebesar<br />

13.365.000 m 3.<br />

19) Tras<br />

Terbentuk sebagai hasil<br />

38<br />

17) Silica<br />

Is a mineral that fills the veins in<br />

limestone with gray to brown<br />

dirty and is a fraction konkoidal.<br />

Used in the metallurgical industry<br />

(refractor), silicon, ceramics,<br />

abrasive materials and initial<br />

purification of metals. Location of<br />

mineral reserves silica numerous<br />

in Manggarai Regency with<br />

reserves amounting to<br />

518,150,000 m 3.<br />

18) Toseki<br />

Is the result of hydrothermal<br />

alteration and tuff rock, a little<br />

white compact. Used as raw<br />

material and ceramic mixtures,<br />

refractor, insulators, etc..<br />

Extractive reserve this toseki<br />

numerous in Manggarai regency<br />

of 13,365,000 m 3.<br />

19) Tras<br />

Formed as a result of weathering

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