Lab 1 Rocks & Minerals

LAB 1: IDENTIFY ROCKS AND MINERALS Name: _________Ben Welling______ Section Time:__Mondays @ 2:00 __________ [40 pts, 4 pts each] Sample Number Color Grain Size Hardness Streak Color Other Comments Mineral or rock name 1 White Grainless 7 Transparent/White It has a large crystal, Quartz 2 Tan/ Earth Grey Coarse 4 Has large course sediments, Very dense, rough texture Quartzite 3 Grey/Black Very small Smooth 6 Black Very smooth, flat rock Basalt 4 Grey Very Fine and smooth 3 Light to dark brown Smooth very fine, not heavy for its density Slate 5 Tan Fine but with a few coarse sediment s 4 White streak Has layers in the rock, looks cemented together Reacted to acid with fizz Limestone 6 White/ and black Smooth, small grain size 3 White Difference in color, two different distinct colors, Reacted to acid Marble 7 Brownish/Red Smooth, no grains 7 Brown Smooth and fine Chert

8 White, with black and grey spots Grain size is coarse with few sediment s 6 White Very smooth ends with coarse sediments in it Granite 9 Grey Coarse but no large sediment s 6 White Feels light to the density, very rough Pumice 10 Earth colored, brown Very smooth 7 White Feels heavy, looks like it is made of sand. Sandstone