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Anna [14]
3 years ago
7

___ is produced when grains of quartz in sandstone are welded together when the rock is subjected to high temperatures.

Physics
1 answer:
Galina-37 [17]3 years ago
3 0
Quartzite is produced when grains of quartz in sandstone are welded together when the rock is subjected to high temperatures.  Quartzite<span> or Quarzit is a hard, non-foliated metamorphic rock which was originally pure quartz sandstone. </span><span>It is formed when a quartz-rich sandstone is altered by the heat, pressure, </span>
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