|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
THE CROSS STONE.
This is a natural untrerated stone mined in Russia .It is drilled and large enough as a centre stone for a pendant or by its self.
Weight 47.7 cts app
Size 27x27x7.9 mm round
The mineral chiastolite is a variety of andalusite. It is noted for distinctive cross-shaped black inclusions of graphite. The chiastolite crystals have been pseudomorphically altered by a mixture of muscovite, paragonite and margarite. The calcium rich margarite tends to form along the graphite rich crosses or bands within the chiastolite. Mineralogically the occurrence is important because all three white mica phases are present in an equilibrium assemblage.
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