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Physical Properties of Matlockite
Cleavage:
{001} Perfect
Color:
Brownish yellow, Colorless, Green yellow, Dark yellow brown.
Density:
7.12
Diaphaneity:
Transparent
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
Habit:
Tabular - Form dimensions are thin in one direction.
Hardness:
2.5-3 - Finger Nail-Calcite
Luminescence:
Non-Fluorescent.
Luster:
Adamantine - Pearly
Streak:
white
Optical Properties of Matlockite
Dichroism (e):
colorless.
Dichroism (w):
colorless.
Optical Data:
Uniaxial (-), e=2.04, w=2.15, bire=0.1100.
Calculated Properties of Matlockite
Electron Density:
Bulk Density (Electron Density)=5.86 gm/cc note: Specific Gravity of Matlockite =7.10 gm/cc.
Fermion Index:
Fermion Index = 0.17 Boson Index = 0.83
Photoelectric:
PEMatlockite =1,473.63 barns/electron U=PEMatlockite x rElectron Density=8,637.30 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Matlockite is Not Radioactive
Chemical Formula: 
