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There are three geological environments in Albrooterozoak rocks in the Arabian Shield compatible with occurrences containing platinum group metals, namely:
A) complexes of ultramafic stratigraphy and ultramafic rocks.
B) chromite lenses mass of Alpine type complexes....

Yellow sapphire or topaz consists of Moonstone, fluorine (Al2SiO4 (F, OH 2)). Topaz different colors and the most famous golden color oblique to the color orange, yellow, dark brown to yellowish oblique, pink, red may be colorless. And up hardness minerals...

Consists of a semi-solid material amorphous organic and irregular excreted through pockets and
Consists of a semi-solid material amorphous organic and irregular excreted through pockets and channels plant cells. The Amber heterogeneous characteristics in terms of structure, but consistent in terms of the bodies spruce multiple is more Meola soluble...

there is in the form of crust-green or light blue and there may be in the form of
Chrysocolla or Krizokola (in English: Chrysocolla) there is in the form of crust-green or light blue and there may be in the form of contiguous groups-like clusters and crystals that grow with quartz and jacinth (stone brown cream variable colors) are...