No.

Miller indices

(h k l)

Hydroxyapatite

Standard Hydroxyapatite

d-spacing (A⁰)

2θ

(deg)

peak Intensity (I) %

d-spacing (A⁰)

2θ (deg)

peak Intensity (I) %

1

002

3.415

26.093

31.69%

3.441

25.872

36.1

2

211

2.781

32.184

100

2.796

31.973

100

3

112

2.697

33.212

60.86

2.771

32.275

43.7

4

300

2.715

32.894

70

2.699

31.157

54.3

5

202

2.615

34.291

21.96

2.622

34.167

24.5

6

222

1.937

46.689

17.05

1.933

46.947

24.8

7

213

1.834

49.689

23.96

1.835

49.620

32.3

8

004

1.715

53.367

16.43

1.720

53.195

113.5