The ultimate purpose of diagnosing a horoscope is to protect the native from the ill effects of the planetary positions and combinations and to strengthen the positive aspects arising from the positions of the planets. To protect the native from the ill effects and to strength the positive aspects many ways are advised by the seers. One of them is wearing w gem which can defend the ill effect of a planet and to extract the power of the positive making planet. The gems representing the planets are of many types and some substitutes to the main gems are also available in the nature. They are described at a large in the literature available and deciding a gem completely depends on the application of the theories proposed in the subject. The names of the varieties and its related planets are given here and their details can be obtained from the appropriate links:

 

Ruby

 

Ruby (manik) is the gem stone for the planets king, sun.this is also called surya mani or surykant. The way sun is the lord or king of all planets the same way ruby is the king of all the gems.it has the physical hardness of 9 on the mohrs hardness scale, specific gravity 3.9-4.1,refractive index of 1.768-1.759.it has the chemical composition aluminium oxide, and is normally found in raw form as corundum. The colour of ruby varies in different shades, from rose pink colour to reddish pink in colour. Ruby comes from different mines all over the world ie. Burma, africa, bankok, srilanka, etc.in this the variety of ruby which comes from mines of burma is the rarest and the most costly among ruby.

 

Semi precious substitutes (upratnas)

 

Spineal ruby (saughandik manik)

Garnet (tamra mani)

Star ruby (maisoorie manik)

Sun ruby (suryakant mani)

Red agate (lal hakik)

 

Pearl

 

Pearl (mukta/moti) is the gem of the constellation king moon or the queen of all planets. Naturally it is found in sea water and is produced by oysters. It is basically a polished calcium carbonate formed in layers by the enzymes dicreted by oysters.its hardness varies from 4.5-6 depending upon the maturity time quality of origin. It .its natural colour is parly white but due to certain inmpurity conte and hardness varies from nts, it colour varies from pink, grey and some time even black. Pearl is usually available now a days, but the purest and rarest variety is foundin persian gulf (basre ki khadi), which is ought to be The costliest of all. Others comes from Australia, China Japan Red sea, Pacific ocean etc.

Semi precious substitutes (upratnas)

Imitation pearl

Cultured pearl

Moon stone(chandra kant)

Opal

Oyster(seep)

 

Coral

 

Coral (munga) this is the gem of planet mars who is also termed as the general of the nine planets.naturally it is found in sea, and is a product of aquatic animal called cora.it is also a form of calcium carbonate.its specific gravity is 2.65 3.5 to 4 on hardness scale.it is usually found in red, orange and white colour, but some variety of yellow, black and grey colour is also found. Coral is usually found in Italy, Algeria, Tunisia, and Neples.Some good variety is also found in india which is orange in colour.

 

Semi precious substitutes of coral

 

Prawal

Rata

Sinduria

 

Emerald

 

Emerald (panna) is the gem of the prince of the nine planet mercury. Its chemical composition is erillium aluminium silicate. It broadly belongs to beryl group. Its hardness varies from 7.5-8 on the hardness scale, with specific gravity of 2.7. It is usually found in different shades of dark to pale green and is transparent to sub-translucent. Emerald is generally found through out the world but some of the best variety mines occurs in Columbia (America), Russia, Africa, India, Brazil, & Pakistan.

 

semi precious substitutes of emerald

 

Peridot

Aquamarine

Malachite

Jade

Margaz

Serpentine

Diopside

 

Yelow sapphire

 

Yellow sapphire (pukraaj) is the gem of the dev guru of the nine planets, jupiter. Its hardness is 8-9 on scale specific gravity 3.9- 4.1.basically it belongs to corundum group of mineral.as the name denotes it is found in different shades of dark to pale yellow, and is transparent. Yellow sapphire is generally found in Burma, Srilanka (ceylone) Siam, Greece & Turkey.

 

Semi precious substitutes of yellow sapphire

 

Topaz

Brazillianite

Fluorite

Yellow orthoclase

Casserite

Citrine

 

Diamond

 

Diamond (heera) is the gem of the asura guru shukra of the nine. planets, venus.it is form of pure carbon, hardness 10 specific gravity 3.52. It has very high refractive index.it is generally white or colourless in colourand transparent, but due to certain inpurities content, rare varieties of black, pink yellow and green is also found. Diamond is found mainly in South Africa, Russia, Brazil, India and Arkansas.

 

semi precious substitutes of diamond

 

Quartz crystal

White tourmaline

Fluorite

 

Blue sapphire

 

Blue sapphire (neelam) is the gem of the planet saturn, its hardness is 8-9 on scale specific gravity 3.9- 4.1.basically it belongs to corundum group of mineral.as the name denotes it is found in different shades of dark to pale blue, and is transparent.Blue sapphire purest variety comes from Srilanka (ceylone), in India (kashmir) , Australia & Queens Land.

 

Semi precious substitutes of blue sapphire

 

Lolit

Lapis lazuli

Turquoise

Amethyst

Heamatite

Flour spar

 

Heassonite

 

Heassonite (gomed) is the gem for the most mesemirising shadow planet rahu.it is usually of colour of honey (golden brown), but some variety of dark brown to yellowish brown is also entertained. Its hardness comes to around 7.5 on scale, but specific gravity is bit high 4.65 – 4.71.

Hessonite is found in good variety in mines of srilanka(ceylon) but some variety of dark coloured is found in Gaya,Bihar in India and Some yellowish brown variety in Orrisa India.

 

Semi precious substitutes of hessonite

 

Brown zircon

Amber

 

Cats eye

 

Cats eye (lehsunia) is the gem for the shadow planet ketu or the dragons tale.as the name denotes it shines like cats eye.it belongs to chrysoberyl and fibrous quartz variety. different shades of pale green grey colour cats eye stone is found. Its hardness is 8.5 and specific gravity 3.6-3.8.its is translucent in nature.

Cats eye is mainly found in three categories

Kanak khet (greenish)

Dhoomr khet (greyish)

Krishna khet (blackish)

 

Semi precious substitute of cats eye

 

Alexandrite

Tigers eye

Sardonyx

Chiastolite