rocks color, composition what is it made of and texture size shape and arrangeme
ID: 288663 • Letter: R
Question
rocks color, composition what is it made of and texture size shape and arrangements of is parts. Good or bad cleavage ?
ACTIVITY 5.1 Igneous Rock Inquiry Date: rocka below (and actual rock samples of them if available). They are all x1. Bencath each picture, desurile and complene the workshet with your current level of abiliry. Do not look up terms or other information composition (what in is made o), and texture (the sine, shape, and arrangement of its parta). Use your .vet a brown gla6sy dark fray dr e T & DISCUSS Describe how you would classify the rocks above into groups. Be prepared to discuss your on with other geologist.Explanation / Answer
1
color - black and white
composition - quartz, tourmaline biotite
texture- coarse grained anhedral shape
bad cleavage
2
black color, quartz, fine grained texture , anhedral shape, bad cleavege(since cleavage may not form in igneous rock mostly )
3
greyish black color, black color may indicate biotite, mica and quartz, there are some linear pattern showing which indicate a cleavage , fine grained texture. subhedral shape
4
color fleshy red black and white, fleshy color may k feldspar black may be biotite, white is quartz. corse grained texture , anhedral shape , bad cleavage.
5
fleshy red brown color, fleshy color may be orthoclase(k feldspar) the white may be quartz, the reddish one may be hematite or some heavy mineral , coarse grained texture, bad cleavage. anhedral shape
6
dark gray color, grainular texture may be formed due to vesicles formed by releasing gas while crystallising, anhedral shape bad cleavage.
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