1 Ruby – Gems stone
Pink Color Tourmaline Specimen

Pink Color Tourmaline Specimen

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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 »

 

Category Archives: Ruby

SAPPHIRE

SAPPHIRE

COLOUR : Blue ;possibleviolet,green secondary hues

 

COMPOSITION :AI2O3 +Fe,Ti

CRYSTAL STRUCTURE :Trigonal

HARDNESS :9specific gravity :4.0-4.1

LUSTER:Adamantine to Vitreous

TRANSPARENCY :Transparent to  Opaque

METAPHYSICA:Exorcism ,protection,healing ,willpower, strength,faith,loyalty ,friendship

OTHER:Most effective stone for nervous system issue

All gem-quality corundum that is not red is called sapphire ,yet this name is popularly associated with the colour blue .Variation in colour,due to iron and titanium impurities , spans many shades ,but the most valueable is a clear ,deep blue. Some stones ,called “colour –change “,exhibit different shades of blue in artificial and natual light .

OCCURRENCE : Good quality sapphire is found in Burma ,Srilanka ,and India .The best Indian sapphire is cornflower blue,and fond in Kashmir ,either in pegmatites or as waterworn pebbles in alluvial deposits . Sapphire from Thailand ,Australia,and Nigeria is dark blue ,and may appear nearly black . Montana (USA) pruduces  sapphire of an attractive metallic blue. Other localities  include Cambodia ,Brazil ,Kenya,Malawi ,and Colombia .

REMARK : Synthetic sapphire production began in the late 19th century .Commercial quantities became available in the early 20th century .

PADPARADSCHA

Padparadscha is a very rare, pinkish orange sapphire,it is the only variety of corundum other then ruby that is given its own name ,rather then being referred to as a sapphire of a particular colour. The name derives from a Sinhalese word ,meaning lotus blossom .

OCCURRENCE: Srilanka .

REMARK : Like all varieties of corundum , padparadscha is an excellent  jewellery stone ,as it is second only to diamond in hardness .

 

Corundum

CORUNDUM

COLOUR :Red ,yellow,blue,pink,gray,brown

COMPOSITION:AI2O3

CRYSTAL STRUCTURE : Hexagonal,trigonal

HARDNESS :9specific gravity :4.0-4.1

LUSTER:Adamantine to vitreous

TRANSPARENCY :Transparent to translcunt

METAPHYSICAL: Insight ,intuition,ambition ,confidence,calm,release of anger

OTHER:Commonly use as an abrasive on sandpaper or in large machinery for metalwork

 

RUBY

COLOUR : Bright red

COMPOSITION :AI2O3 +Cr

CRYSTAL STRUCTURE :Trigonal

HARDNESS :9specific gravity :4.0-4.1

LUSTER:Subadamantine to vitreous

TRANSPARENCY :Transparent  to  translucent

METAPHYSICA:Love ,arousal,passion,vitality

OTHER:Aligned with the base /rootand heart chakras

 

Ruby-the name given to red , gem-quality corundum –is one of the best gemstones for jewellery settings .Rubies may be any shade of red ,from pinkish or brownish red.depending on the chromium and iron content of the stone. Frequent twinning of the crystals makes the material liable to frature ,yet ruby is a tough mineral ,secondly only to diamond in hardness .Crystal prisms are hexagonal with tapering on flat end. As the  crystals grow they form new layers, and depending on the geological conditions and minerals present ,colour variations ,called zoning ,occur .

OCCURRENCE : Worldwide in igneous and metamorphic rocks,or as waterworn pebbles in alluvial deposits .The finest stones come from Burma; those from Thailand ,the main source ,are brownish red ;Afghanistan ,Pakistan and Vietnam  produce bright red stones ;those from India ,North Carolina (USA),Russia, Australia ,and Norway are dark ,sometimes even opaque .

REMARK: In 1902,a Frenchman  Auguste Verneuil ,produced a synthetic ruby crystal by exposing powered aluminium oxide and colouring material to the flame of a blowtorch .