User:Chris857/Kulanite
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Kulanite (pronounced KU LĂ·N AIT)[3] is a mineral with formula
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Quick Facts Kulanite, General ...
Kulanite | |
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General | |
Category | Phosphate mineral |
Strunz classification | 8.BH.20[1] |
Dana classification | 41.9.1.1[1] |
Crystal system | Monoclinic |
Space group | Space group: 21/m Point group: 2/m |
Unit cell | a = 9.014(1) b = 12.074(1) c = 4.926(1) β = 100.48(1)° Z = 2 |
Identification | |
Color | Green to blue |
Cleavage | Fair to good on {010} and {100} |
Mohs scale hardness | 4 |
Luster | Adamantine, vitreous[1] |
Streak | Greenish white[1] |
Diaphaneity | Transparent to translucent |
Optical properties | Biaxial (+) |
Refractive index | nα = 1.703 nβ = 1.705 nγ = 1.723[1] |
Birefringence | δ = 0.020[1] |
2V angle | 32° (measured) |
Dispersion | r > v |
References | [2] |
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