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Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Habit:
Fibrous - Crystals made up of fibers.
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
7 - Quartz
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
grayish white
Optical Properties of Clinozoisite
Gladstone-Dale:
CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2226,KPDmeas= 0.2146,KC= 0.2108 Ncalc = 1.68 - 1.72
Optical Data:
Biaxial (+), a=1.706-1.724, b=1.708-1.729, g=1.712-1.735, bire=0.0060-0.0110, 2V(Calc)=72-86, 2V(Meas)=14-90. Dispersion r > v or r < v.
Pleochroism (x):
colorless, yellow green, or yellow green.
Pleochroism (y):
colorless, green, or pink.
Pleochroism (z):
colorless, green, or red.
Calculated Properties of Clinozoisite
Electron Density:
Bulk Density (Electron Density)=3.33 gm/cc note: Specific Gravity of Clinozoisite =3.35 gm/cc.
Fermion Index:
Fermion Index = 0.0091183238 Boson Index = 0.9908816762
Photoelectric:
PEClinozoisite = 3.40 barns/electron U=PEClinozoisite x rElectron Density= 11.34 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Clinozoisite is Not Radioactive
Clinozoisite Classification
Dana Class:
58.02.01a.01(58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups
(58.02)with cations in [6] and higher coordination; single and double groups (n=1,2)
Chemical Formula: 
