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Montano1993
1 month 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:
s2008m [2.3K]1 month ago
4 0

Answer:

Diamond-

Identifying characteristics:

Color- Colorless or White

Luster - adamantine

Streak - Colorless

Habit - Hourglass form

Hardness - 10

Cleavage - octahedral

Composition - pure carbon

Specific gravity - 3.5

Dolomite (CaMg(CO3)2)

Color - Colorless or White

Hardness ranging from 3 to 4

Reacts to acids

Gneiss

Distinct light and dark bands alternate

Biotite and pyroxene contribute to dark banding, being Mafic minerals

Quartz and feldspar provide light banding, being Felsic minerals

This is a high-grade metamorphic rock formed from the regional metamorphosis of lower grade rock.

Chalk (CaCO3)

Color - White

Extremely fragile

Hardness - 1

Fizzing occurs when it reacts with acid.

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