Rock Identification Lab Report

Transparency The sample is translucent to opaque and hence not able to transmit light Luster Have significantly grainy, pearly and vitreous properties Streak Using a streak plate, I was able to identify the streak color. Looking at the powered portion of the rock I spotted a white color Acid test Dilute hydrochloric acid was poured on the rock, and it reacted with it. The reaction to acids is used to identify carbonate minerals, and hence the rock tested positive for this mineral. Effervescence in which visible bubbles of carbon dioxide where observed in the relatively short period. Hardness and strength About the Moh’s hardness scale (rates rocks on the scale from 1-10). 1 toughness gauge Porosity and fracture This sample rock showed to be less porous, and the fracture is conchoidal Other properties As observed, the rock is water resistant as it does not dissolve in water or react to it when submerged.