The chief deposits appear to be at Bukit Besi in Trengganu and
near Ulu Rompin in southeastern Pahang. "The [Ulu Rompin]
iron-ore bodies are a series of lenses and pockets with more or
less N-S elongation, paralleled with the regional strike and
shearing. They have generally been more resistant than the
country rock and so occur on the crests of roughly parallel
ridges."[11]
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11. United Nations, ECAFE, _Coal and Iron Ore Resources of Asia
and the Far East_, p. 117.