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ID number:820867
 
Author:
Evaluation:
Published: 13.04.2007.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Extract

Zelts ir dzeltens, mīksts un smags metāls. Dabā satopams galvenokārt ar dažādiem piemaisījumiem – ar nelielu daudzumu sudraba, vara, dzelzs vai citu metālu. Ja piejaukts ir sudrabs, krāsa ir gaišāka, ja varš, krāsa ir sarkanīgāka. Piemaisījumu veidā zelts atrodas pirītā, halkopirītā, galenītā. Tas satopams visos iežos, augsnē, jūras ūdenī un saldūdenī, augos uz dzīvniekos. 20 km biezā Zemes garozas slānī ir – 100 mljd. tonnas zelta.…

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