Clinohumite

Clinohumiet, Clinohumita, Klinohumit, Клиногумит, クリノヒューマイト, 斜硅鎂石


Commonly known      rarer (so called collectors stones)      very rare (rarities)      relatively rare organic material


Clinohumite is a very rare gemstone, named after its monoclinic crystal structure and its relation to humite which was named after Sir Abraham Hume (1749-1838), English collector of gemstones, minerals, and pieces of arts.

Formula: (Mg,Fe2+)9(SiO4)4(F,OH)2
Mineral Class: Silicates
Crystal System: monoclinic
Mohs Scale: 6
Density (g/cm3): 3.17 - 3.35
Refractive index: 1.628 - 1.674
Cleavage: poor
Colors: White, yellow (Pamir), orange (Pamir), reddish brown (Taymyr), brown, greenish
Luster: vitreous
Fluorescence: SW: yellow-orange
Pleochroism:
X: golden-yellow, brown-yellow, dark orange
Y: light yellow, yellow-orange
Z: colorless, light yellow, yellow-orange
Largest faceted Clinohumite: ?
Deposits: worldwide, in gem quality:
Kuchilal Mine / 50 km south of Khorog / Pamir Mts. / Tajikistan,
Epanko / Mahenge / Morogoro Region / Tanzania,
Uluguru Mts. / Morogoro Region / Tanzania, Taymyr District / Russia, Afghanistan, Pakistan
Discovery: 1876
1st Description: 1892
Name: for its monoclinic crystal system, and relation to humite
History:
First description in 1892 by E.S. Dana.
Discovery of the first Clinohumite in gem quality in Russia in 1983.
Discovery of the second deposit of gemmy Clinohumite in Tanzania in 2005.
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Kuchilal Mine / 50 km south of Khorog / Pamir Mts. / Tajikistan

Größere Kartenansicht
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Epanko / Mahenge / Morogoro Region / Tanzania

Größere Kartenansicht
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Uluguru Mts. / Morogoro Region / Tanzania

Größere Kartenansicht

Clinohumite Mineral

Size: 1.5 x 1 x 0.5 cm

Origin: Kokcha Valley / Badakhshan Prov. / Afghanistan

Photo by kind permission of © www.irocks.com
Clinohumite Mineral
Clinohumite

Weight: 2.67 ct

Origin: Tanzania

Photo by kind permission of © www.bkkgemstones.com

Clinohumite

Size: 0.97 x 0.81 x 0.49 cm
Weight: 2.31 ct
Origin: Tanzania

Photo by kind permission of © www.bkkgemstones.com

Clinohumite Mineral

Origin: Kuchilal Mine / 50 km south of Khorog / Pamir Mts. / Tajikistan

Photo by kind permission of © www.irocks.com
Clinohumite Mineral
Clinohumite

Size: 1.80 x 1.41 cm
Weight: 17.0 ct
Origin: Kuchilal Mine / 50 km south of Khorog / Pamir Mts. / Tajikistan

Photo by kind permission of © www.americanthai.com
Clinohumite

Weight: 7.53 ct

Origin: Pamir Mts. / Tajikistan

Photo by kind permission of © www.gemfrance.com

Clinohumite

Size: 0.81 cm
Weight: 2.44 ct
Origin: Russia

Photo by kind permission of © www.ke4gems.com

Clinohumite

Weight: 0.23 ct

Origin: Tanzania

Photo by kind permission of © Darlene Cobler

Clinohumite Mineral

Size: 1.14 x 0.74 x 0.46 cm

Origin: Tajikistan

Photo by kind permission of © Darlene Cobler
Clinohumite

Weight: 0.41 ct

Origin: Tajikistan

Photo by kind permission of © www.irocks.com

Clinohumite

Weight: 0.06 ct

Origin: Tanzania

Photo by kind permission of © www.rocklogic.biz

Clinohumite

Weight: 0.73 ct

Origin: Tanzania

Photo by kind permission of © www.rocklogic.biz

Clinohumite Mineral

Origin: Ladjuar Madan / Kokcha Valley / Afghanistan

Photo by kind permission of © Trinity Mineral Co.
Clinohumite Mineral
Clinohumite

Weight: 1.87 ct

Origin: Tanzania

Photo by kind permission of © www.multicolour.com

Clinohumite Mineral

Size: 3.5 x 2.3 x 1.7 cm

Origin: Gilgit / Gilgit-Baltistan / Pakistan

Photo by kind permission of © www.collectorfinejewelry.com
Clinohumite Mineral
Clinohumite

Size: 0.51 x 0.51 cm
Weight: 0.50 ct
Origin: Afghanistan

Photo by kind permission of © www.rarestone.com

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