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Core

Core showing mineral sulphur

Twin semi circular cores

3 Elliptical cores, 1 concentric

2 circular cores, twin semi circular cores

Six drilling cores

Laminated U core

1954-1983

Concentric elliptical cores

Laminated I core

1954-1983

2 circular and 2 triangular cores

3 cloverleaf cores, 1 concentric

Two cores with flakes attached