Garnet Group

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22.77 carats

Garnet is extensively used as a gem. The name is said to have been derived from the colour of the gem varieties, red garnets having been compared to the flowers and seeds of the pomegranate-tree.

The most common colour of Garnet is red, the most usual tones being tinged with brown, yellow and violet. Green garnet, the colour of which is similar to that of the emerald, though usually more yellowish or brownish, is also cut as a gem, but less frequently. Black garnets also occur and are used in mourning jewellery. Blue is a colour conspicuous by its complete absence in the garnet group.

Amongst all varieties there are numerous specimens of perfect clearness and transparency, sometimes combined with the deepest and darkest shade of colour which are cut as gems.

Garnet is a name given to a group of closely related silicate minerals sharing the same isometric structure. In mineralogy the term garnet has been expanded to include other non-silicate minerals with the same structure, but in gemmological usage, garnet relates specifically to the various mineral species listed below.

Garnet Group Gemstones by Colour

This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.

Garnet Group Gemstones by Size

This table shows distribution of Garnet Group gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:0.06 cts
Heaviest:88.74 cts
Average:3.63 cts
Total photos:532
Do you have a larger Garnet Group? Why not upload a photo?
0.06ct to 8.93ct8.93ct to 17.80ct17.80ct to 26.66ct26.66ct to 35.53ct35.53ct to 44.40ct44.40ct to 53.27ct53.27ct to 62.14ct62.14ct to 71.00ct71.00ct to 79.87ct79.87ct to 88.74ct
General Information
Almandine - An iron-aluminium Garnet.
Almandine-Pyrope - Garnets intermediate between Almandine and Pyrope.
Rhodolite - A rose-red variety of Garnets from the Almandine to pyrope series.
Andradite - A calcium iron garnet.
Demantoid - A green variety of andradite.
Melanite - A black variety of andradite.
Topazolite - A yellow-brown variety of andradite.
Andradite-Grossular - Garnets intermediate between andradite and grossular.
Mali Garnet - Grossular-andradite type garnet from Mali, West Africa.
Grossular - A calcium aluminium garnet.
Hessonite - A golden orange to brown variety of grossular.
Hibschite - A grossular containing hydroxyl ions.
Hydrogrossular - A grossular containing hydroxide (OH).
Transvaal Jade - A compact green massive jade-like variety of grossular.
Tsavorite - An emerald-green variety of grossular.
Pyrope - A magnesium aluminium garnet.
Chrome Pyrope - A violet chrome-bearing variety of pyrope.
Pyrope-Spessartine - Garnets intermediate between pyrope and spessartine
Umbalite - A light pink to purple pyrope, originally from the Umba River, Tanzania.
Spessartine - A manganese aluminium garnet.
Kashmirine - Spessartine from Kashmir.
Mandarin Garnet - A fiery reddish-orange spessartine.
Uvarovite - A calcium chromium garnet.
Chemical Formula

X = Ca, Fe, etc
Z = Al, Cr, etc, Management Team (2012)
Photos of natural/un-cut material from
Physical Properties of Garnet Group
Mohs Hardness6.5 to 7.5, Management Team (2012)
Specific Gravity3.55 to 4.33, Management Team (2012)
TenacityBrittle, Management Team (2012)
Cleavage QualityNone, Management Team (2012)
FractureConchoidal, Management Team (2012)
Optical Properties of Garnet Group
Refractive Index1.730 to 1.895, Management Team (2012)
Optical CharacterIsotropic, Management Team (2012)
Dispersion0.022 to 0.057, Management Team (2012)
Colour (General)Colourless, yellow, yellow-green, green, red, pinkish red, pale pink, violet-red, brown, black, Management Team (2012)
Causes of ColourIron is responsible for red, yellowish-green and commonly occurirng yellow and brown colours. The colour of emerald-green garnet uvarovite is due to chromium.
Max Bauer, Precious Stones (1968) Dover Publications
TransparencyTransparent,Translucent, Management Team (2012)
LustreSubadamantine,Vitreous, Management Team (2012)
Crystallography of Garnet Group
Crystal SystemIsometric, Management Team (2012)
HabitTrapezohedral, dodecahedral, massive, Management Team (2012)
Further Information
Mineral information:Garnet Group information at
Significant Gem Localities
  • Kunar
    • Dara-e-Pech District
[var: Spessartine] Quinn and Laurs (2004)
  • Northern Territory
    • Central Desert Region
      • Harts Range (Harts Ranges; Hartz Range; Hartz Ranges)
        • Mt Riddock Station
F.L. Sutherland (1999)
  • Tyrol
    • Schwaz District
      • Finkenberg
[var: Almandine] Staebler and Pohwat (2008)
[var: Almandine] Staebler and Pohwat (2008)
[var: Almandine] Staebler and Pohwat (2008)
      • Mayrhofen
[var: Almandine] Staebler and Pohwat (2008)
  • Dashkasan District
    • Dashkesan
Smith and Smith (1995)
  • Minas Gerais
    • São Geraldo do Baixio
[var: Spessartine]
[var: Almandine] Eeckhout et al. (2004)
  • Nunavut
    • Qikiqtaaluk Region
      • Baffin Island
[var: Almandine] Wilson (2007)
  • Québec
    • Chaudière-Appalaches
      • Les Appalaches RCM
        • Saint-Joseph-de-Coleraine
[var: Andradite] Wilson (2007)
    • Estrie
      • Le Val-Saint-François RCM
        • St-Denis-de-Brompton
[var: Grossular] Wilson (2007)
      • Les Sources RCM
[var: Grossular] Amabili et al. (2004, 2008)
[var: Grossular] Amabili et al. (2004, 2008)
[var: Andradite] Wilson (2007)
  • Fujian
    • Sanming
[var: Pyrope]
    • Zhangzhou
      • Yunxiao Co.
        • Tongbei
[var: Spessartine] Ottens (2004)
[var: Pyrope]
    • Ding'an Co.
      • Penglai
[var: Pyrope]
  • Jiangsu
    • Nanjing
[var: Pyrope]
  • Tibet
    • Nyingtri Prefecture (Linzhi Prefecture)
      • Bomi Co.
        • Yigong
[var: Uvarovite] He et al. (2000)
Czech Republic
  • Ústí nad Labem Region
    • Litoměřice District
      • Podsedice
[var: Pyrope] Zang and Gilg (2008)
  • Andhra Pradesh
    • Uttarandhra Region
      • Visakhapatnam District
Viswanatha (1982)
[var: Almandine] Viswanatha (1982)
  • Rajasthan
    • Ajmer District
[var: Almandine] G. Choudhary and J. Panjikar (2009)
    • Bhilwara District
S. Fernandes (1999)
    • Jaipur district
[var: Almandine] Viswanatha (1982)
    • Jhunjhunu District
[var: Almandine] Viswanatha (1982)
    • Jodhpur Division
      • Sirohi District
[var: Almandine] G. Choudhary and J. Panjikar (2009)
[var: Grossular] Viswanatha (1982)
  • Kerman Province
    • Arzuiyeh County
[var: Andradite] Laurs (2002)
  • Lombardy
    • Sondrio Province
[var: Andradite] Zang (2008)
  • Nara Prefecture
    • Yoshino district
      • Tenkawa village
[var: Andradite] Hainschwang and Notari (2006)
  • Taita-Taveta County
[var: Grossular]
[var: Grossular] Kane et al. (1990)
      • Tsavo National Park
[Grossular var: Tsavorite] Keller (1992)
  • Turkana County
    • Lodwar
[var: Pyrope] Barot (1993)
  • Naryn Region
[var: Pyrope]
  • Alaotra-Mangoro
    • Ambatondrazaka
      • Ambatosoratra
[var: Almandine] F. Danet (2009)
  • Androy
    • Bekily District
      • Ambahita
        • Color-changing Garnet Mining Field
[var: Pyrope] Henn (1999)
  • Anosy
    • Taolagnaro District
      • Andranobory
[var: Almandine] Schmetzer et al. (2001, 2002)
  • Atsimo-Andrefana
    • Ampanihy District
[Grossular var: Tsavorite] Laurs (2003)
Madagascar - extraLapis English No.1, 2001, p. 90
  • Betsiboka
    • Tsaratanàna
Madagascar - extraLapis English No.1, 2001, p. 43
  • Diana
    • Ambanja
      • Antsakoamanondro
[var: Andradite] Danet (2009)
  • Ihorombe
    • Ihosy
      • Ilakaka
Hanni (1999)
      • Sakalalina
[var: Almandine] F. Danet (2009)
  • Vakinankaratra
    • Betafo District
      • Mahaiza
[var: Spessartine] E.Ya. Kievlenko, Geology of gems, 2003, p. 112
  • Kayes Region
    • Bafoulabé Cercle
[var: Andradite] Brightman and Tunzi (1995)
    • Nioro du Sahel Cercle
      • Sandaré Commune
[var: Grossular] Dameron (2008)
  • Sonora
[Andradite var: Demantoid]
  • Arkhangai Province
    • Hangai highland
      • Tariat Volcanic Province
[var: Pyrope] Dill et al. (2004, 2006)
  • Niassa Province
[Almandine-Pyrope var: Rhodolite] J. Marques (2009)
  • Mandalay Region
    • Pyin-Oo-Lwin District
[var: Spessartine] Kyi et al. (2005)
        • Bernardmyo
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
        • Chaung-gyi
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
        • Kyatpyin Central
[var: Andradite] Ted Themelis (2008) Gems & mines of Mogok
        • Kyauk-Pyat-That
Ted Themelis (2008) Gems & mines of Mogok
Ted Themelis (2008) Gems & mines of Mogok
[var: Spessartine] Ted Themelis (2008) Gems & mines of Mogok
Ted Themelis (2008) Gems & mines of Mogok
        • Mogok Valley
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
        • On-dan
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
        • Pein-Pyit (Painpyit; Pyan Pyit)
[var: Grossular] Ted Themelis (2008) Gems & mines of Mogok
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
[var: Almandine] Ted Themelis (2008) Gems & mines of Mogok
    • Yamethin District
[Grossular var: Hessonite] Ted Themelis (2008) Gems & mines of Mogok
  • Sagaing Region
    • Katha District
      • Wuntho Township
Ted Themelis (2008) Gems & mines of Mogok
  • Erongo Region
    • Dâures Constituency
      • Tubussis Farm 22
[Andradite var: Demantoid] Laurs (2002)
  • Kunene Region
    • Epupa
[var: Spessartine] Palfi (2005)
[var: Spessartine] Michelou (2007)
[var: Spessartine] Michelou (2007)
  • Gilgit-Baltistan
    • Shigar District
      • Braldu Valley
        • Hoh Nala
[var: Spessartine] Blauwet (2008)
  • Khyber Pakhtunkhwa Province
    • Lower Dir District
[var: Almandine] Jackson (1992)
  • Chelyabinsk Oblast
    • Verkhny Ufaley
      • Ufaley District (Ufalei District)
        • Korkodin
[Andradite var: Demantoid] Korchevskaya (2006)
    • Zlatoust
      • Nazyamskie Mountains
[var: Grossular] Evseev (1993)
  • Perm Krai
    • Gornozavodskii District
      • Sarany
[var: Grossular] Kolesar (1997)
  • Primorsky Krai
    • Dalnegorsk Urban District
[var: Grossular] Smith and Smith (1995)
  • Republic of Karelia
    • Pitkyarantsky District
      • Kitelya
[var: Almandine] P. Lyckberg (2009)
  • Sakha
    • Mirninsky District
      • Daldyn
[var: Pyrope] P. Lyckberg (2009)
      • Mirny
[var: Pyrope] P. Lyckberg (2009)
[var: Grossular] Evseev (1994)
[var: Grossular] Evseev (1994)
[var: Grossular] Evseev (1994)
  • Sverdlovsk Oblast
    • Asbest
[var: Grossular] Smith and Smith (1995)
    • Polevskoy
[Andradite var: Demantoid] Zang (2008)
South Africa
[Grossular var: Transvaal Jade]
Sri Lanka
  • North Central Province
[var: Pyrope] Milisenda and Henn (1999)
    • Polonnaruwa District
Milisenda and Henn (1999)
  • Sabaragamuwa Province
    • Ratnapura District
Chandrajith et al. (1998)
      • Rakwana
Chandrajith et al. (1998)
      • Ratnapura
[var: Andradite]
  • Uva Province
    • Monaragala District
[Grossular var: Hessonite] G. Zoysa (2009)
[Grossular var: Hessonite] G. Zoysa (2009)
[var: Pyrope-Spessartine]  
  • Arusha Region
    • Ngorongoro district
      • Loliondo
[var: Spessartine] Pardieu (2007)
  • Dodoma Region
    • Mpwapwa District
Dirlam et al. (1992)
  • Manyara Region
    • Simanjiro District
[Grossular var: Tsavorite]
[var: Grossular] Pardieu (2007)
[var: Grossular] Pardieu (2007)
  • Ruvuma Region
    • Tunduru District
  • Kanchanaburi Province
    • Bo Phloi District
  • Alaska
    • Wrangel City and Bourough
      • Petersburg Mining District
Frazier and Frazier (1990)
      • Wrangell Island
        • Wrangell
[var: Almandine] Crawford et al. (2005)
  • California
    • San Diego Co.
      • Ramona Mining District
        • Ramona
[var: Spessartine] Laurs and Knox (2001)
      • Warner Springs Mining District
        • Chihuahua Valley
[var: Spessartine]
    • Siskiyou Co.
      • Klamath Mountains
        • Happy Camp
          • Greens Bar placer
Melhase, John (1935c), Some garnet localities of California: Mineralogist: 3(11): 23; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 196.
        • Preston Peak
[var: Grossular] Gems & Minerals (1963): July: 20-22; USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10286810.
  • Idaho
    • Benewah County
      • Camas Cove Mining District
[var: Almandine] Ream (2000)
  • Montana
    • Lewis and Clark Co.
      • East Helena
        • Eldorado Bar
[var: Almandine] E.Ya. Kievlenko (2003) Geology of gems, p. 70
  • Virginia
    • Amelia Co.
      • Amelia (Amelia Court House)
[var: Spessartine]
  • Eastern Province
[var: Pyrope] Johnson et al. (1999)
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