33 Terms
Home > Branche/domæne > Mining > Mineral mining
Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
ashcroftine
Mining; General mining
En tetragonal mineral, K 5 Na 5 (Y, Ca) 12 Si 28 O 70 (OH) 2 (CO 3 ) 8 .3H 2 O; forekommer i små lyserøde nåle på Narsarsuk, Grønland.
phyllitic spaltning
Mining; General mining
Rock kavalergang flager produceres der er knap synlige for det blotte øje. Det er grovere end slaty kavalergang og finere end kalkrig kavalergang.
