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Aleonysh [2.5K]
3 years ago
8

use the samples; diamond, dolomite, gneiss, and chalk and provide your analysis of composition and identification based on their

identification characteristics.
Biology
1 answer:
Trava [24]3 years ago
4 0

Answer:

Diamond-

Physical identification characters:

Color-  White or Colorless

Lusture - admantine

Streak - Colorkess

Habit - Hour glass structure

Hardness - 10

Cleavage- octaheadral

Composition- pure carbon

Specific gravity-3.5

Dolomite (CaMg(CO3)2

Color - Colorless or white

Hardness is between 3-4

Reacts with any acid

Gneiss

Light and dark strip or banding present alternatively

biotite , pyroxene have Mafic mineral shows dark banding

Quartz, Feldspar have  Felsic mineral for light banding

High grade metmorphic rock which is formed due to regional metamorphism of lower grade rock

Chalk(CaCO3)

Color-White

Very fragile

Hardness-1

With acid gives effervescence.

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