ROCK Moh’s Hardness |
Rock Condition | Rock Type | AZT SERIES MATRIX (Low) Abrasvenes Condton (Hight) |
---|---|---|---|
1 - 4 | Soft, Medium hard, High abrasive to low abrasive, High fractured to low fractured |
Shale Sandstone Limestone |
|
5 | Medium hard, Abrasive, Medium fractured |
Limestone Dolomite Weathered Granites Weathered Gneiss Serpantinite Metaperidotite |
|
6 | Medium hard, Partially abrasive, Partially fractured |
Diorite Gabbro Peridotite Gneiss Basalt Andesite |
|
7 | Medium hard - hard, Partially abrasive, Partially fractured - competent |
Metabasalt Amfibolit Metamorphosed Diyorite Metamorphosed Gabbro Diabase |
|
8 | Hard, Low abresive, Competent |
Quartz rich skarn Granite Pegmatite |
|
9 | Very hard, Very high abrasive, Very competent |
Metamorphosed Granite Quartz Rich Gneiss |
|
10 | Very hard, Non abrasive, Fine grained - massive, Very competent |
Chert Jasperoid Quartzite Very highly metamorphosed volcanic rock |