×

[auth0]

[auth0]

SIGN IN YOUR ACCOUNT TO HAVE ACCESS TO DIFFERENT FEATURES

FORGOT YOUR PASSWORD?

FORGOT YOUR DETAILS?

AAH, WAIT, I REMEMBER NOW!

GemFame

Search Gemstone By GemType, Colors, Shapes, Etc.,
Exact matches only
Search in title
Search in content
Search in excerpt
Filter by Custom Post Type
Pages
  • My Account
  • LOGIN
  • Home
  • New Arrivals
  • Pairs
  • Lots
  • All Category
  • Search By
    • Shop By GemType
      • Faceted Gems
      • Cabochons
      • Star Gemstones
      • Cat’s Eye Gemstones
      • Play Colour Gemstones
      • Colour Change Gems
      • Organic Gemstones
      • Rare Gems
      • Fancy Cut Gemstones
      • Carving Gemstones
      • Drilled Gemstones
      • Above 20 ct
    • Shop By Colors
      • Red
      • Blue
      • Violet
      • Green
      • Multicolour
      • Yellow
      • Pink
      • Brown
      • White
      • Purple
      • Orange
    • Shop By Shapes
      • Baguette
      • Marquise
      • Pear
      • Square
      • Octagon
      • Trillion
      • Cushion
      • Oval
      • Rectangle
      • Heart
      • Round
    • Wholesale
    • Beads
  • Gemstones Information
  • Help
    • Gemstone Certificate
    • Gemstone Identification Chart
    • FAQ’s
    • Glossary
    • Payment and Securities
    • International Orders
  • About us
  • Contact us
  • No products in cart.

Scapolite: Gemstone Information

For convenience, the gem-quality varieties of the tetragonal isomorphous series marialite-meionite are conflated here. Marialite is 3NaAlSi3O8NaCl and meionite 3CaAl2Si2O8CaCO3. Crystals are prismatic, usually with flat pyramidal terminations; masses are also known. The hardness is 6 and the SG 2.50–2.78 varying with composition. The total RI range for the ordinary and extraordinary rays is 1.546–1.600; crystals are uniaxial negative. Quartz varieties with overlapping values and resembling scapolite in colour are optically positive. Pleochroism for pink and violet crystals is dark blue or lavender to colourless or violet. Pale yellow stones show colourless to pale yellow. Some pink and violet specimens show absorption bands at 663 and 652 nm, from Cr and the yellow is often strongly absorbed.

Scapolite varieties may exhibit fluorescence, yellow specimens from Myanmar giving yellow to orange and some East African yellow stones a very bright yellow-green under LWUV. There are variable responses to SWUV and to X-rays with some phosphorescence reported. Marialite meionite specimens occur in regionally metamorphosed rocks, particularly in marbles. The Myanmar stone tract at Mogok has produced fine pink chatoyant specimens some of which may incline to violet; fine golden yellow to orange stones have come from Mpwapwa, Morogoro region, Dodoma, Tanzania. Massive yellow scapolite from Quebec is particularly attractive and may show a bright yellow fluorescence.The most topical account of the scapolite group minerals can be found in the recently published (2004) vol. 4B of Deer, Howie and Zussman,Rock-Forming Minerals, published by the Geological Society of London;ISBN 1862391440.Scheelite

Products

  • Opal 2.66ct 10.8x9.2x5.8mm Natural Gemstone Ethiopia 6,650.00 5,320.00
  • Pink Sapphire 1.13ct 6.54x4.94x3.84mm Natural Gemstone Ceylon 14,102.40 13,560.00
  • Charoite 7.27ct 14.06x10.11x5.79mm Natural Gemstone Russia 908.00 727.00
  • Chrysoberyl Cats Eye 1.34ct 5.73x5.62x4.29mm Natural Gemstone India 17,440.80 16,758.00
  • Amethyst 9.38ct 16x12x8.2mm Natural Gemstone 2,931.00 2,345.00
  • Tanzanite 8.01ct 13.3x10.2x7.1mm Natural Gemstone Tanzania 10,012.00 8,010.00
  • White Sapphire 0.76ct 6.05x4.90x3.06mm Natural Gemstone Ceylon 11,856.00 11,400.00
  • Sillimanite Cats Eye 2.62ct 8.8x7.1x4.7mm Natural Gemstone India 3,275.00 2,620.00
  • Ruby 1.08ct 7.44x4.64x3.34mm Natural Gemstone Burma 21,465.00 19,200.00
  • Yellow Sapphire 1.72ct 7.89x5.65x3.63mm Natural Gemstone Ceylon 22,753.54 20,640.00

Quick Contact

Address: Old NO 168, New No 347,
Mint Street, Manibdra Enclave, 1st Floor Sowcarpet, Chennai, 600079 (India)
Phone: 044 2539 4966
Mobile: +91 9444 777 469
Mail: gemfame@gmail.com
mail:sales@gemfame.com

Payment and Security

Help Center

Terms and Conditions
Privacy Policy
Return Policy
Shipping
Certificate
Payment & Checkout
Gemstone Guarantee
Security Policy

Shipping & Certificate

  • GET SOCIAL

All rights reserved AK Gems © GemFame.com | Content and Images are Copyrighted. Design By LIMRA Technologies

TOP
Need Help? Call +91 9444777469
+

Thank you

Your feedback has been received.

Close