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Rakwana, Ratnapura District, Sabaragamuwa Province, Sri Lankai
Regional Level Types
Rakwana- not defined -
Ratnapura DistrictDistrict
Sabaragamuwa ProvinceProvince
Sri LankaCountry

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Key
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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 6° 25' North , 80° 40' East (est.)
Margin of Error:~0km
Köppen climate type:Af : Tropical rainforest climate


Gem mining district (gem gravels), famous for its "peacock blue" sapphires.

Regions containing this locality

India Plate

Plate - 890 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

19 valid minerals. 3 (TL) - type locality of valid minerals.

Detailed Mineral List:

'Apatite'
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
'Axinite Group'
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Baddeleyite (TL)
Formula: ZrO2
Reference: Am Min 40 (1955), 275
Beryl
Formula: Be3Al2(Si6O18)
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Chrysoberyl
Formula: BeAl2O4
Reference: [www.johnbetts-fineminerals.com]; Shigley, J. E., Dirlam, D. M., Laurs, B. M., Boehm, E. W., Bosshart, G., & Larson, W. F. (2000). Gem localities of the 1990s. Gems & Gemology, 36(4), 292-335.; Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Corundum
Formula: Al2O3
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Danburite
Formula: CaB2Si2O8
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Diopside
Formula: CaMgSi2O6
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Ekanite
Formula: Ca2ThSi8O20
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Enstatite
Formula: MgSiO3
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Fluorite
Formula: CaF2
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Geikielite (TL)
Formula: MgTiO3
Type Locality:
Reference: Nature (1892) 46, 620; Mineralogical Magazine(1893) 10, 145
Ilmenite
Formula: Fe2+TiO3
Kornerupine
Formula: Mg3Al6(Si,Al,B)5O21(OH)
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Perovskite
Formula: CaTiO3
Reference: Lapis 8(9), 17 (1983)
Quartz
Formula: SiO2
Quartz var: Rose Quartz
Formula: SiO2
Spessartine
Formula: Mn2+3Al2(SiO4)3
Spinel
Formula: MgAl2O4
Reference: Lapis 8(9), 17 (1983); Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Srilankite (TL)
Formula: ZrTi2O6
Type Locality:
Reference: Neues Jahrb.Min.,Mh.(1983) 151-157; Lapis 8(9), 17 (1983)
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Zircon
Formula: Zr(SiO4)
Reference: Dissanayake, C. B., Chandrajith, R. O. H. A. N. A., & Tobschall, H. J. (2000). The geology, mineralogy and rare element geochemistry of the gem deposits of Sri Lanka. BULLETIN-GEOLOGICAL SOCIETY OF FINLAND, 72(1/2), 5-20.
Zirconolite
Formula: CaZrTi2O7
Reference: Lapis 8(9), 17 (1983)

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Baddeleyite (TL)4.DE.35ZrO2
Chrysoberyl4.BA.05BeAl2O4
Corundum4.CB.05Al2O3
Geikielite (TL)4.CB.05MgTiO3
Ilmenite4.CB.05Fe2+TiO3
Perovskite4.CC.30CaTiO3
Quartz4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
Spinel4.BB.05MgAl2O4
Srilankite (TL)4.DB.25ZrTi2O6
Zirconolite4.DH.30CaZrTi2O7
Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
Danburite9.FA.65CaB2Si2O8
Diopside9.DA.15CaMgSi2O6
Ekanite9.EA.10Ca2ThSi8O20
Enstatite9.DA.05MgSiO3
Kornerupine9.BJ.50Mg3Al6(Si,Al,B)5O21(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Apatite'-
Axinite Group-
Garnet Group-X3Z2(SiO4)3
Tourmaline-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Geikielite (TL)4.3.5.2MgTiO3
Ilmenite4.3.5.1Fe2+TiO3
Perovskite4.3.3.1CaTiO3
AX2
Baddeleyite (TL)4.4.14.1ZrO2
Srilankite (TL)4.4.13.2ZrTi2O6
Group 7 - MULTIPLE OXIDES
AB2X4
Chrysoberyl7.2.9.1BeAl2O4
Spinel7.2.1.1MgAl2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
Zirconolite8.2.5.5CaZrTi2O7
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with[Si2O7] with borate groups
Danburite56.3.1.1CaB2Si2O8
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [4] and higher coordination; single and double groups (n=1, 2)
Kornerupine58.1.1.1Mg3Al6(Si,Al,B)5O21(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1MgSiO3
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Ekanite72.1.1.1Ca2ThSi8O20
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Axinite Group'-
Beryl
var: Aquamarine
-Be3Al2Si6O18
'Garnet Group'-X3Z2(SiO4)3
Quartz
var: Rose Quartz
-SiO2
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H KornerupineMg3Al6(Si,Al,B)5O21(OH)
BeBeryllium
Be Beryl (var: Aquamarine)Be3Al2Si6O18
Be BerylBe3Al2(Si6O18)
Be ChrysoberylBeAl2O4
BBoron
B DanburiteCaB2Si2O8
B KornerupineMg3Al6(Si,Al,B)5O21(OH)
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O Beryl (var: Aquamarine)Be3Al2Si6O18
O BaddeleyiteZrO2
O BerylBe3Al2(Si6O18)
O ChrysoberylBeAl2O4
O CorundumAl2O3
O DanburiteCaB2Si2O8
O DiopsideCaMgSi2O6
O EkaniteCa2ThSi8O20
O EnstatiteMgSiO3
O Garnet GroupX3Z2(SiO4)3
O GeikieliteMgTiO3
O IlmeniteFe2+TiO3
O KornerupineMg3Al6(Si,Al,B)5O21(OH)
O PerovskiteCaTiO3
O QuartzSiO2
O Quartz (var: Rose Quartz)SiO2
O SpessartineMn32+Al2(SiO4)3
O SpinelMgAl2O4
O SrilankiteZrTi2O6
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O ZirconZr(SiO4)
O ZirconoliteCaZrTi2O7
FFluorine
F FluoriteCaF2
MgMagnesium
Mg DiopsideCaMgSi2O6
Mg EnstatiteMgSiO3
Mg GeikieliteMgTiO3
Mg KornerupineMg3Al6(Si,Al,B)5O21(OH)
Mg SpinelMgAl2O4
AlAluminium
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al BerylBe3Al2(Si6O18)
Al ChrysoberylBeAl2O4
Al CorundumAl2O3
Al KornerupineMg3Al6(Si,Al,B)5O21(OH)
Al SpessartineMn32+Al2(SiO4)3
Al SpinelMgAl2O4
SiSilicon
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si BerylBe3Al2(Si6O18)
Si DanburiteCaB2Si2O8
Si DiopsideCaMgSi2O6
Si EkaniteCa2ThSi8O20
Si EnstatiteMgSiO3
Si Garnet GroupX3Z2(SiO4)3
Si KornerupineMg3Al6(Si,Al,B)5O21(OH)
Si QuartzSiO2
Si Quartz (var: Rose Quartz)SiO2
Si SpessartineMn32+Al2(SiO4)3
Si ZirconZr(SiO4)
CaCalcium
Ca DanburiteCaB2Si2O8
Ca DiopsideCaMgSi2O6
Ca EkaniteCa2ThSi8O20
Ca FluoriteCaF2
Ca PerovskiteCaTiO3
Ca ZirconoliteCaZrTi2O7
TiTitanium
Ti GeikieliteMgTiO3
Ti IlmeniteFe2+TiO3
Ti PerovskiteCaTiO3
Ti SrilankiteZrTi2O6
Ti ZirconoliteCaZrTi2O7
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe IlmeniteFe2+TiO3
ZrZirconium
Zr BaddeleyiteZrO2
Zr SrilankiteZrTi2O6
Zr ZirconZr(SiO4)
Zr ZirconoliteCaZrTi2O7
ThThorium
Th EkaniteCa2ThSi8O20

Localities in this Region
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Sri Lanka
  • Sabaragamuwa Province

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