skarn उदाहरण वाक्य

Such examples include biotite-rich zones, amphibolite-calcite-scapolite alteration and other unusual skarn assemblages.
However, these manto deposits are analogous to skarn deposits, and in some cases terminology may be misused.
Typical skarn minerals include pyroxene, garnet, idocrase, wollastonite, actinolite, magnetite or hematite, and epidote.
This alteration gives rise to wollastonite and pyroxene-containing skarn depending on the distance from the magma chamber walls.
It produced some mineral veins with lead, silver, zinc, copper and tin-tungsten skarn at Kara.

The gems form in sedimentary residual gem deposits, eluvial deposits, metamorphic deposits, skarn and calcium-rich rocks.
Some magnetite skarn and hydrothermal deposits have been worked in the past as high-grade iron ore deposits requiring little beneficiation.
Skarn mineralisation, which often contains magnetite, can also be detected though the ore minerals themselves would be non-magnetic.
Canavesite is a secondary mineral that occurs due to the weathering of ludwigite-magnetite skarn on the surface of mine walls.
Samples taken within Clifton Mining's skarn system have values in excess of 0.3 oz . / ton gold.