What is the correct sequence in decreasing order of hardness among the following?
A. Gypsum
B. Fluorite
C. Feldspar
D. Topaz
Choose the correct answer from the options given below :
1
C > D > B > A
2
D > B > C > A
3
D > C > B > A
4
C > D > A > B
What is the correct sequence in decreasing order of hardness among the following?
A. Gypsum
B. Fluorite
C. Feldspar
D. Topaz
Choose the correct answer from the options given below :