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|
 Call Now 1-866-900-GEMS in USA May 21, 2024  

Natural Clinohumite

The only known deposits of gem quality Clinohumite were discovered in the Pamir Mountains, Tadzhikistan in 1983; and in Mahenge, Tanzania in 2005. A member of the monoclinic system, transparent clinohumite is an extremely rare gemstone.


  • Sorry, Clinohumite is out of stock!

Clinohumite Profile

Color information: Brown, yellow, white, orange, or reddish brown
Refractive Index: 1.625 1.668
Pleochroism: Brownish yellow or pale
Chemical Composition: Magnesium Silicate Fluoride OH
Hardness: 6 - 6.5
Density: 3.17 - 3.35
Crystal Group: Monoclinic
Ocurrence: Extremely rare - gem quality found only in the Pamir Mountains, Tadzhikistan. Other mineralogical occurrences include, Mt. Vesuvius, Italy; Pargas, Finland; Llanos de Juanar, Malaga, Spain; Tilly Foster Mine, New York; Fort Defiance, Apache County, Arizona; Crestmore Quarry, Riverside County and Lower Lake, Fresno County, California; Luna, New Mexico and Franklin, New Jersey, USA.
Sign of the Zodiac: N/A
Month of the year: N/A
Clinohumite Clinohumite Clinohumite Clinohumite Clinohumite Clinohumite
Clinohumite is a mineral found as small grains in the marbles of contact metamorphic environments. It has been cut as a brilliant yellow-orange gemstone and is sought after by collectors because of its rarity. The intensity and the beauty of the orange color are important and inclusions are common and accepted. It was first discovered in the metamorphosed limestone blocks that were ejected by the volcano Mt. Vesuvius, near Napoli, in Italy.

Clinohumite is a fluorescent mineral and will glow a tan to yellow-orange color when subjected to shortwave UV light. It is similar in fluorescent color to the bright humite material found at Franklin, New Jersey. Humite is a related species to clinohumite as might be expected by their names. Clinohumite is named in allusion to its monoclinic symmetry as opposed to humite's orthorhombic symmetry. Clinohumite's structure is often intergrown with humite's structure in the same crystal

Clinohumite, like humite, is a member of the Humite Group of minerals. Class: Silicates , Subclass: Nesosilicates Group: Humite. Members of the humite group are noted for having a mixture of silicate and oxide layers in their structures. The silicate layers have the same structure as olivine and the oxide layers have the same structure as brucite. Clinohumite has four stacked olivine layers that alternate between the brucite layers. Associated Minerals include humite, talc, geikielite, lazurite, dolomite and calcite.

Crystal Habits include small prismatic or rounded crystals. Lamellar twinning is common. The luster is vitreous to resinous and the streak is white. Cleavage is poor and in one direction,- basal. Crystals are transparent to translucent and the fracture is brittle to conchoidal producing small conchoidal fragments.

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

Finest gems/
Chrome Tourmaline Single
From our finest gemstones collection
Chrome Tourmaline Single Round Slightly included
Size: 20.40 X 20.40 MM
Weight: 20.060 CTS
Shape: Round
Clarity: Slightly included
Usually ships within 24 hours
OUR PRICE
USD 4332.96
VIEW DETAILS  ADD TO SHOPPING CART


Deal of the Day/
Chrysoberyl Closeout
limited time offer, ref# CB11156ab
Chrysoberyl Closeout Mixed shapes Slightly to Moderately included
Weight: 10.020 CTS
Shape: Mixed shapes
Clarity: Slightly to Moderately included
Usually ships within 24 hours
10 % OFF, YOU SAVE 18.04 USD
NOW ONLY
USD 162.32
VIEW DETAILS  ADD TO SHOPPING CART

Today’s Trade/
Best Selling Gems:
Sapphire Sapphire
1632 Sapphire ’s available
Browse gems | Learn More
Spinel Spinel
379 Spinel ’s available
Browse gems | Learn More
Alexandrite Alexandrite
291 Alexandrite ’s available
Browse gems | Learn More
Tanzanite Tanzanite
466 Tanzanite ’s available
Browse gems | Learn More
Zircon Zircon
237 Zircon ’s available
Browse gems | Learn More
Gemstone Variety: Hits Index
Going Up Amber +283 +0.0%
average price USD 179.62 per item
Going Down Sapphire -842 +-0.0%
average price USD 384.08 per item
Going Down Alexandrite -467 -0.1%
average price USD 1949.21 per item
Going Up Anatase +54 +0.0%
average price USD 206.25 per item
Going Down Turquoise -139 +-0.0%
average price USD 55.56 per item
See more real time gem reports.
Exchange rates to USD
Canada Dollars 1.362
Euro 0.921
United Kingdom Pounds 0.788
Japan Yen 155.833
Switch our prices in your home currency.

Gem Library /
Gems Legend and  Lore This month birthstone: Emerald
More from the Gem Library about Birthstones.
Gemini Gemini
May 21 – June 20
Dual nature. You can go in many directions. Your zodiac stone...more

Subscribe Newsletter/
Name:
E-mail:
Review our Privacy Policy.


 Top of Page Help/FAQ  

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 ®.