1 Topped Doublet – Gems stone
Pink Color Tourmaline Specimen

Pink Color Tourmaline Specimen

Beautiful Natural Golden Colour Topaz Specimen From Pakistan More »

Blue sapphire gemstone Specimen

Blue sapphire gemstone Specimen

Blue sapphire gemstone Specimen,sapphire crystal Specimen,Tourmaline Specimen,Crystal Tourmaline, More »

Tourmaline Cuts Shapes

Tourmaline Cuts Shapes

Tourmaline Cuts Shapes,Blue sapphire gemstone Specimen,sapphire crystal Specimen,Tourmaline Specimen, More »

watermelon Tourmaline

watermelon Tourmaline

watermelon Tourmaline,Blue sapphire gemstone Specimen,sapphire crystal Specimen,Tourmaline Specimen, More »

Blue sapphire gemstone Specimen

Blue sapphire gemstone Specimen

watermelon Tourmaline,Blue sapphire gemstone Specimen,sapphire crystal Specimen,Tourmaline Specimen, More »

 

Topped Doublet

TOPPED DOUBLET

A doublet is a stone made of two separate piece cemented togather to create the appearance of a precious stone .Glass topped by red almandine garnet is the most common form ,with green glass  used to imitate emerald ,blue to imitate sapphire .Once joined ,the stone is faceted and polished .

REMARK: These stones were very popular in Britain and the rest of Europ in the Victorian era .

ANDRADITE

Garnets containing titanium and manganese are grouped as andradite garnet .The most vauable is demantoid ,whose emerald-green colour is due to the presence of chromium .It has a higher dispersions then diamond and can be recognized by the characteristic “horsetails “ ,which are fine ,hair-like  inclusions of asbestos .Topazolite the yellow variety of andradite garnet, varies from pale to dark yellow ,only small crystals are found

OCCURRENCE : The best demantoid is found in the Urasl in Russia ,and is associated with gold-bearing sands and  metamorphic rocks . Other localities include northern Itly  ,Zaira ,and kenya .Topazolite crystals are found in the Swiss and Italian Alps in metamorphic rocks .Metanite is found in metamorphic rocks and volcanic lavas; find crystals are found on the island of Elba (Itly ), and in france and Germany .