Stone of the Month -June

Museum Of Gem and Jewellery

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Stone for the Month June

Pearl Moonstone and Alexandrite 

 Pearl is an organic gem formed in oysters - saltwater molluscs or freshwater mussels . A pearl is formed , when a foreign particle enters its mantle or body tissue, the body cells build up concentric layers (known as 'nacre') around the particle to protect the mantle.





    Organic Substance 
    Chemical composition:
    Calcium Carbonate with organic matter:
    CaCO3 + conchiolin + H2O
    Common Colours :White, gray, yellow, pink, black, brown, blue      
    Refractive index: 1.530 – 1.680 
    Density : 2.65 – 2.78
    Hardness : 2½ - 4

    Occurrence Persia, China, Japan, Myanmar, Indonesia, Australia, New Zealand

   

Moonstone is the name given to an orthoclase feldspar that exhibit a soft, billowy sheen moving over the surface of the stone (the phenomenon known as adularescence). This effect is caused as a result of interference and diffraction of light from microscopic particles of albite, interlayering in orthoclase.

Family : Orthoclase feldspar

Chemical Composition: Potassium Aluminium Silicate KAlSi3O8

Common Colours: Colourless, white, yellow, gray, brown, pink, green, orange 

Refractive Index:1.520 – 1.530

Density:2.56 – 2.59

Hardness: 6 - 6½

Occurrence:India, Sri Lanka, Myanmar, Madagascar, Tanzania, Brazil, Russia, USA

Named after Tsar Alexander II of Russia, alexandrite displays a colour change effect dependent on the type of light; typical colour changes from green to bluish green in daylight to red to purplish red under incandescent light. This colour change effect is a result of small scale replacement of aluminium by chromium oxide.

Family- chrysoberyl

Chemical composition beryllium

Aluminium oxide BeAl2O4

Common Colours: Green to blue (daylight) Red to Purple (incandescent light)

Refractive Index : 1.740 – 1.760

Density: 3.68 – 3.78

Hardness: 8½

Occurrence Sri Lanka, India,Myanmar, Brazil, Russia

Cancer

Born between June 21^st -July 22^th

The zodiac sign Cancer is symbolized by the Crab, with its impenetrable outer shell and vulnerable underside. Just as the Crab claw grips, Cancer energy makes us cling to comforts—from job security to beloved family members and pets. The Crab also carries its home on its back, and Cancer is about setting up a cozy and safe space wherever it goes. Change can threaten this security-seeking sign, which seeks to plant deep roots. Under the influence of a Cancer planetary transit, we feel sentimental and nostalgic. These are times for nurturing ourselves and our loved ones. The essence of Cancer energy is sensitive, domestic, feminine, maternal, compassionate, care taking, romantic, and creative. 

Element: Water

Quality: Mutable

Associated Gemstone: Pearl Moonstone 

Color:  White, smoky gray, green, russet, iridescence, violet

Day: Monday

Ruler: Moon–celestial body of moods and emotions

Greatest Overall Compatibility: Sagittarius, Aquarius

Lucky Numbers: 2

Strengths: Stubborn, highly creative, faithful, sensitive, compassionate, demanding

Weaknesses: Grumpy, pessimistic, distrustful, devious, feeling insecure

Likes :Creative art, domestic hobbies, love to rest near water bodies, empathetic, friendly, close friends and domestic life

Dislikes: New people, criticizing mother, breach of privacy

The Museum Of Gem and Jewellery Federation Jaipur ,1st Floor , Rajasthan Chamber Bhawan, 

M I Road Jaipur (INDIA)

www.mgjjaipur.com info@mgjjaipur.com