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http://en.wikipedia.org/wiki/Turquoise
Category Phosphate mineralsChemical formula CuAl6(PO4)4(OH)8·4H2OStrunz classification 08.DD.15Colour Blue, blue-green, greenCrystal habit Massive, nodularCrystal system TriclinicCleavage Good to perfect – usually N/AFracture ConchoidalMohs scale hardness 5-7Lustre Waxy to subvitreousStreak Bluish whiteSpecific gravity 2.6-2.9Optical properties Biaxial (+)Refractive index nα = 1.610 nβ = 1.615 nγ = 1.650Birefringence +0.040Pleochroism WeakFusibility Fusible in heated HClSolubility Soluble in HClReferences [1][2][3]
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ReplyDeletehttp://en.wikipedia.org/wiki/Turquoise
ReplyDeleteCategory Phosphate minerals
ReplyDeleteChemical formula CuAl6(PO4)4(OH)8·4H2O
Strunz classification 08.DD.15
Colour Blue, blue-green, green
Crystal habit Massive, nodular
Crystal system Triclinic
Cleavage Good to perfect – usually N/A
Fracture Conchoidal
Mohs scale hardness 5-7
Lustre Waxy to subvitreous
Streak Bluish white
Specific gravity 2.6-2.9
Optical properties Biaxial (+)
Refractive index nα = 1.610 nβ = 1.615 nγ = 1.650
Birefringence +0.040
Pleochroism Weak
Fusibility Fusible in heated HCl
Solubility Soluble in HCl
References [1][2][3]
I have read your article about Feroza and trust me you have provided a very nice information about Feroza in URDU.
ReplyDeleteI really love feroza stone because Feroza gives strength to the eyes, expands the breast and strengthens the heart.
is it for sale?
ReplyDelete