Activity 3.2 Mineral Properties the haster of each of the folowing maerials ocks

Question

Activity 3.2 Mineral Properties the haster of each of the folowing maerials ocks meaic M) o oametallik (NM) G What is the crystal forss or hatie (Pign 3.8 and 3.6) of the 1. quarta in ig 3.2Anative copper in Fig 34 D Lok up atr in the Mineral Datahase ifig 322) to find a Iat of the varies (van) of quarte. Then identufy each qare variety below (Figu. A32.1-A324), and wrihe its name Iweath the imagye Figure A3.2. Figure A3.2.2 Figure A3.2.3 Figure A324 A mineral can be scratched by a masonry nail or knife blade but not by a wire nail Fig. 3.14). l. Is this mineral hard or soft? 2. What is the hardness number of this mineral on Mohs Scale? S. What mineral on Mohs Scale has sach a hardness? FA mineral can scraich cakite, and it can be scratched by a wire nail. 1. What is the hardness number of this mineral on Mohs Scale? 2. Which mineral on Mohs Scale has this hardness? a The bras, opaqalli ineral in Fig, .A s ha the minera in Fi 13 What io his mineral's hardnes and how can you tell A mineral sample has a mass of 27 grams and takes up 10.4 cubic centimeters of space. What is the specific gravity of this mineral? Show your work 98

Explanation / Answer

A: Sorry sir, the question is not readable because of poor resolution of an image.

B: salt: white, wheat: pale yellow, pencil lead: dark grey to black

C: quartz: hexagonal, native copper: cubic

D: amethyst, milky quartz, rose quartz, smoky quartz

E: soft, 5 (since its hardness lie between nail hardness(5.5) and wire(4.5)), Apatite

F: It can scratch calcite so its hardness is greater than since hardness of calcite is 3 , since it is scratched by wire ,its hardness must be less than 4.5 since hardness of wire is 4.5, So its hardness must be 4, Flourite.

G: please provide the figure 3.3 A

H: specific gravity is with respect to the mass of water.

1 cm3 water has mass = 1 gm

so 10.4 cm3 water has mass = 10.4 gm

now specific gravity = 27/10.4=2.596

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