කෙයලිනයිට්

කෙයලිනයිට්
General
Category	Phyllosilicates Kaolinite-serpentine group
රසායනික සූත්‍රය	Al2Si2O5(OH)4
Strunz classification	09.ED.05
Crystal symmetry	Triclinic pedial H-M symbol: (1) Space group: P1
Unit cell	a = 5.13 Å, b = 8.89 Å, c = 7.25 Å; α = 90°, β = 104.5°, γ = 89.8°; Z = 2
Identification
පාට / පැහැය	White, sometimes red, blue or brown tints from impurities
Crystal habit	Rarely as crystals, thin plates or stacked, More commonly as microscopic pseudohexagonal plates and clusters of plates, aggregated into compact, claylike masses
Crystal system	Triclinic
Cleavage	Perfect on {001}
Tenacity	Flexible but inelastic
Mohs scale hardness	2–2.5
Luster	Pearly to dull earthy
Streak	White
Specific gravity	2.16–2.68
Optical properties	Biaxial (–)
Refractive index	nα = 1.553–1.565, nβ = 1.559–1.569, nγ = 1.569–1.570
2V angle	Measured: 24° to 50°, Calculated: 44°
References

කෙයලිනයිට් යනු මැටිවල ඇති ඛනිජයකි. කෙයලිනයිට් අධික මැටි කිරිමැටි හෙවත් පිඟං මැටි ලෙස හැඳින්වේ.