Rhodonite
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Physical & Optical Properties
Category
Semi-Precious Gems
Mohs Hardness
5.5 – 6.5
Specific Gravity
3.4 – 3.76
Refractive Index
1.711 – 1.752
Crystal System
Triclinic
Luster
Vitreous,Dull (Earthy)
Cleavage
Perfect
Fracture
Conchoidal
Color
pink
Birefringence
0.01
Pleochroism
Distinct: yellowish-red - pinkish-red - yellowish-red
Mohs Hardness
Mohs Hardness: 5.5 – 6.5
1 Soft10 Hard
Crystal System
Value & Market
Price Tier
Budget (< $50/ct)
Where to Buy Rhodonite
Blue Nile
Fine jewelry retailer
James Allen
Gemstone jewelry
Brilliant Earth
Ethically sourced gems
Amazon
Wide selection
Links may earn a commission at no extra cost to you.
Treatments
May be dyed: acetone test - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 3
5.5 to 6.5Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
3.40 to 3.76Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
PerfectUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
ConchoidalArthur Thomas, Gemstones (2009)
1.711 to 1.752Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Biaxial/+Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
0.010 to 0.014Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Distinct: yellowish-red - pinkish-red - yellowish-redHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
NoneWalter Schumann, Gemstones of the world (2001)
Red, gray-red - (opaque); red, orange-red (transparent)Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
Pink, Mn2+ in octahedral coordination, with minor Fe2+. Mn3+ in octahedral coordinationW. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011)
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Vitreous,Dull (Earthy)Arthur Thomas, Gemstones (2009)
InertHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
TriclinicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Commonly tabular or cleavable masses.Michael O?Donoghue, Gems, Sixth Edition (2006) More from other references
Rhodonite occurs in manganese deposits formed by hydrothermal contact and regional metamorphism.Michael O?Donoghue, Gems, Sixth Edition (2006)
Rhodonite information at mindat.org
Australia
Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 444
Brazil
Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 444
Peru
Russia
Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 444
Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 443
USA
MacFall, 1951. Gem Hunter's Guide, 1st ed.; Bradley, W.W. (1936), Thirty-second report of the State Mineralogist: California Division Mines Report 32: 217; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 323.
About Rhodonite
Rhodonite is a manganese silicate mineral known for its striking rose-pink to red color, typically accompanied by distinctive black veining of manganese oxide minerals, creating a dramatic contrast in cabochons and carvings. It has been mined in the Ural Mountains of Russia for centuries, where it was called orletz (the eagle stone), and is also found in Peru, Australia, and Sweden. Russia's Empress Catherine the Great commissioned large decorative objects from rhodonite, cementing its status as a prestigious ornamental stone.
Jewelry Use
Durability
4/10
Science FYI Family
Frequently Asked Questions
What is Rhodonite?
Rhodonite is a manganese silicate mineral known for its striking rose-pink to red color, typically accompanied by distinctive black veining of manganese oxide minerals, creating a dramatic contrast in cabochons and carvings. It has been mined in the Ural Mountains of Russia for centuries, where it w
What is the hardness of Rhodonite?
Rhodonite has a Mohs hardness of 5.5 to 6.5, making it moderate for use in jewelry.
What color is Rhodonite?
Rhodonite is primarily Pink.
How much does Rhodonite cost?
Rhodonite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Rhodonite?
Rhodonite belongs to the Triclinic crystal system.