Gemstones, Diamonds, Pearls - Multicolour.com
My Shopping Cart My Account Gem Library
|Welcome to Multicolour.com|Single Stones|Calibrated Stones|Pairs|Mix Lots|Closeouts|Carved Gems|lapidary and gemological tools and supplies|Gem Smart Search|
Home / Gem Library / Gemstones Varieties / Scheelite March 28, 2024

Natural Scheelite

Despite its low hardness, scheelite has been faceted as a gemstone for collectors. Its high refractive index and adamantine luster assure bright and surprisingly attractive gemstones. The refractive indices are 1.918 – 1.934 with a positive sign and a birefringence of .016. Scheelite is extremely dense with an SG that varies between 5.9 to 6.1. The absorption spectrum may show faintly the didymium rare earth spectrum of groups of lines in the yellow and green with a stronger line at 584nm. Scheelite is well known for the strong bright blue fluorescence it exhibits under short wave ultra-violet light. It is practically inert under long wave UV.


  • There are 2 Scheelite gemstones available at Multicolour.com
  • Scheelite(s) are organized in the following categories: Single,  gemstones.

Find your Scheelite

Our Scheelite(s) are available in various shapes, sizes and colors. 2 Scheelite(s), too many to look through? You may select any combination of search options. Colors grade into each other and you can search for more than one color at once. For a better selection, try selecting two or three colors, -- your first choice plus the two closest colors.

Color range
yellowish orange
orangy yellow





Scheelite Profile

Color information: Yellowish-white, brownish, orange yellow
Refractive Index: 1.918 - 1.937
Chemical Composition: CaWO4
Hardness: 4.5 - 5.0
Density: 5.9 - 6.1
Crystal Group: Tetragonal
Ocurrence: Czechoslovakia; Italy; Switzerland; Finland; Cumberland, Cornwall, England; Santa Cruz, Sonora, Mexico; South Dakota, Conneticut, Colorado, Utah, California, Arizona, USA; New South Wales and Queensland, Australia; Mian Yang, and Ping Wu, Sezhuan, China; Hollinger Mine, Ontario, Canada;
Sign of the Zodiac: N/A
Month of the year: N/A
Scheelite Scheelite
Yellowish to brownish but sometimes almost orange-yellow in color, the calcium tungstate mineral scheelite is an important ore of tungsten. Although most of the world wide production of tungsten comes from the mineral wolframite, scheelite is abundant in the United States and provides the country with most of its supply. Scheelite was named for the discoverer of tungsten, K. W. Scheele, the Swedish chemist who proved the existence of tungsten in the mineral.

Scheelite is a member of the tetragonal system and crystals often show dipyramidal habits that look very much like octahedrons. These pseudo-octahedral crystals are sometimes truncated with minor pyramids, but only on the top and/or bottom points of the crystal; giving evidence of their true symmetry. Other minerals that form pseudo-octahedral crystals similar to scheelite include wardite, anatase and powellite. The crystals of scheelite can look like fluorite octahedrons which can also fluoresce but fluorite has perfect octahedral cleavage and a much lower luster. Massive sheelite has also been misidentified as massive quartz but its strong fluorescence provides conclusive proof of its true identity.

Powellite, CaMoO4, is isostructural with scheelite which is why it forms similar crystals. The two minerals form a series in which the tungsten of scheelite is substituted for by the molybdenum of powellite. Powellite fluoresces a yellow color while scheelite fluoresces a bright blue under short wave ultraviolet light. Since molybdenum can substitute for tungsten, some scheelite specimens will also show a yellow fluorescence.

Many prospectors for scheelite have made good use of scheelite's typically bright blue fluorescence by searching for scheelite deposits at night with ultraviolet lamps. Many old mines have even been reopened after examinations of the mine shafts with ultraviolet lamps which proved that the ore was not yet exhausted.

Associated Minerals include quartz, garnets, vesuvianite, epidote, topaz, schorl, apatite, gold, silver, molybdenite, cassiterite, wolframite and fluorite. The best field indicators are crystal habit, color, density, luster and especially SW fluorescence.

Looking for other Gemstones?

Search Gems by Color | Advance Search | Step-by-Step Search Wizard

Search/
Search for:
Search Site Gems
Enter keywords or item #. (i.e ruby or YDFG97a).
Shopping Cart: Empty

Scheelite range/
Scheelite Single
Scheelite Single Fancy Moderately included
Size: 8.60 X 9.10 MM
Weight: 5.500 CTS
Shape: Fancy
Clarity: Moderately included
Usually ships within 24 hours
RECOMMENDED
OUR PRICE
USD 440.00
Add to Shopping Cart Save For Later

Scheelite Single
Scheelite Single Octagon Heavily included
Size: 10.50 X 9.60 MM
Weight: 10.310 CTS
Shape: Octagon
Clarity: Heavily included
Usually ships within 24 hours
RECOMMENDED
OUR PRICE
USD 360.85
Add to Shopping Cart Save For Later


Gem Library/
Gems Legend and  Lore Gems Legend and Lore
Some of the latest of ways that gems have been associated with Birthstones and Signs of the Zodiac.
Understanding Gemstones Understanding Gemstones
Learn about Physical and Optical properties, color, clarity and cut of gemstones.
Gems Glossary Gems Glossary
Ever wonder what are "Blemish", "Luster", "Saturation" "Uniformity" or "Mine Run" means?
Reference and  Links Reference and Links
Recommended books and links to Gem, Jewelry&Mineral Magazines, Gem Institutes and Labs.

 Top of Page Need help?  

Gemstones for sale: Alexandrite, Garnet, Diamond, Opal, Spinel, Sapphire, Tourmaline, Tanzanite, Tsavorite,
Gemstones by Category: Calibrated, Carving, Closeout, Jewelry, Mixed Lot, Pair, Rough, Single, Best Sellers or Featured Gemstones.
Gemstone education: Colored Gemstones Guide, Gems Library, Gemstone Treatments, Gemstone Glossary, Gems and Astrology,

All Transactions secure by Thawte certificate - click here to validate Ebay Power Seller Gem Certification Various Shipping Options Major Credit Cards Accepted

All trademarks and logos shown herein are the property of their respective owners. © Copyright Multicolour.com, 1998-2011. All rights reserved. Use of this site constitutes acceptance of Multicolour.com Return Policy, Privacy Policy and Trading Guarantee. Published and operated by David Wein Ltd. 32 Hollywood Road, Central, Hong Kong Island Hong Kong. Lost? Check site map or resources page.

Site design and maintenance by NetComposite ®.