Atomic and nuclear properties of UD rock for doug
QuantityValueUnits ValueUnits
<Z/A> 0.49602     
Specific gravity 2.700 g cm-3   
Mean excitation energy 145.4 eV   
Minimum ionization 1.668 MeV g-1cm2 4.503 MeV cm-1
Nuclear collision length 65.8 g cm-2 24.36 cm
Nuclear interaction length 99.0 g cm-2 36.65 cm
Pion collision length 92.4 g cm-2 34.23 cm
Pion interaction length 129.9 g cm-2 48.11 cm
Radiation length 26.31 g cm-2 9.746 cm
Critical energy 48.28 MeV (for e-) 46.91 MeV (for e+)
Molière radius 11.56 g cm-2 4.280 cm
Plasma energy ℏωp 33.35 eV   
Muon critical energy 683. GeV   
Composition:
Elem ZAtomic frac* Mass frac
Si
 14
0.25
0.334025
Ti
 22
0.00
0.003176
Al
 13
0.06
0.073911
Fe
 26
0.01
0.025666
Mn
 25
0.00
0.000394
Mg
 12
0.00
0.004856
Ca
 20
0.01
0.019232
Na
 11
0.04
0.046428
K
19
0.00
0.003045
P
15
0.00
0.000889
O
8
0.63
0.488377
* calculated from mass fraction data

For muons, dE/dx = a(E) + b(E) E. Tables of b(E): PDF TEXT
Table of muon dE/dx and Range: PDF TEXT
Explanation of some entries
Note: Ieff calculated using the ICRU37 Table 5.1 algorithm for liquids and solids