QUARTZITE ASSOCIATION

CALC-GRANULITE ASSOCIATION

1.

Strata bound, cofolded with well defined contact.

1.

Strata bound, cofolded with Diffused contacts.

2.

Hard and lumpy in general

2.

Mostly powdery with occasional lumpy ore.

3.

Generally of low grade, 18 - 28 percent.

3.

Higher in Mn content. Generally 30 - 32 percent Mn with pockets of high grade material

4.

Consists of manganese sillicate and garnet with small band of steel gray and fine-grained material.

4.

Consists of mostly pyrolusite psilomelane, braunite and jacobsite with small amounts of garnet and manganese sillicate.

5.

The width and thickness of ore zone is generally smaller.

5.

The width and thickness of ore zone is greater.

6.

There are a few pockets of garnet-granulite, lithomarge, chert and limonite.

6.

Intimately associated with Pockets and bands of lithomarge, chert and limonite.

7.

Coarse quartzofeldspathic rock is invariably present at the foot-wall side and between the underlying rock and manganese ore.