Monday, January 16, 2012

Turquoise Stone (Feroza)

5 comments:

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  2. Category Phosphate minerals
    Chemical 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]

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  3. I have read your article about Feroza and trust me you have provided a very nice information about Feroza in URDU.
    I really love feroza stone because Feroza gives strength to the eyes, expands the breast and strengthens the heart.

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