Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Ampegama quarry, Galle District, Southern Province, Sri Lankai
Regional Level Types
Ampegama quarryQuarry
Galle DistrictDistrict
Southern ProvinceProvince
Sri LankaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
Latitude & Longitude (WGS84):
6° 11' 41'' North , 80° 8' 54'' East
Latitude & Longitude (decimal):
6.19491,80.14847
GRN:
N05E56
Type:
Quarry
KĂśppen climate type:
Af : Tropical rainforest climate
Nearest Settlements:
PlacePopulationDistance
Hikkaduwa1,300 (2012)8.0km
Ambalangoda20,133 (2012)11.4km
Galle93,118 (2012)19.1km
Unawatuna2,000 (2013)22.3km
Talpe3,000 (2013)26.0km
Mindat Locality ID:
481634
Long-form identifier:
mindat:1:2:481634:1
GUID (UUID V4):
0


In the Ampegama area, charnockitic gneiss, calc-silicate and garnet-bearing quartzofeldspathic rocks crop out.

"In the Ampegama quarry, a large charnockitic gneiss is mined. There are calc-silicate rocks that occur mainly as dyke-like bands cross-cutting the major foliation of the rock with reaction zones in close proximity to the surrounding
charnockitic gneiss." (Sameera et al., 2026).

Green, euhedral to subhedral grains of ekanite were observed in only some of the calc-silicate dykes.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Apatite'
Formula: Ca5(PO4)3A
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ 'Calcium Amphibole Subgroup'
Formula: AnCa2(C2+5-mC3+m)(Si8-(n+m)Al(n+m))W2
ⓘ 'Calcium Amphibole Subgroup var. Hornblende'
Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ 'Clinopyroxene Subgroup'
ⓘ Ekanite
Formula: Ca2ThSi8O20
ⓘ 'Feldspar Group'
ⓘ Fluorite
Formula: CaF2
ⓘ Graphite
Formula: C
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ 'K Feldspar'
ⓘ 'Mafic minerals'
ⓘ 'Orthopyroxene Subgroup'
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Quartz
Formula: SiO2
ⓘ 'Scapolite'
ⓘ Titanite
Formula: CaTiO(SiO4)
ⓘ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.00.05SiO2
ⓘIlmenite4.CB.05Fe2+TiO3
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘTitanite9.AG.15CaTiO(SiO4)
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘEkanite9.EA.10Ca2ThSi8O20
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group'-
ⓘ'Calcium Amphibole Subgroup
var. Hornblende'		-AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Scapolite'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'Orthopyroxene Subgroup'-
ⓘ'Apatite'-Ca5(PO4)3A
ⓘ'Calcium Amphibole Subgroup'-AnCa2(C2+5-mC3+m)(Si8-(n+m)Al(n+m))W2
ⓘ'Mafic minerals'-

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
CCarbon
Cⓘ CalciteCaCO3
Cⓘ GraphiteC
OOxygen
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ EkaniteCa2ThSi8O20
Oⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ QuartzSiO2
Oⓘ TitaniteCaTiO(SiO4)
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ ApatiteCa5(PO4)3A
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
Fⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alⓘ Calcium Amphibole SubgroupAnCa2(C2+5-mCm3+)(Si8-(n+m)Al(n+m))W2
SiSilicon
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ EkaniteCa2ThSi8O20
Siⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Siⓘ QuartzSiO2
Siⓘ TitaniteCaTiO(SiO4)
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Calcium Amphibole SubgroupAnCa2(C2+5-mCm3+)(Si8-(n+m)Al(n+m))W2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3A
ClChlorine
Clⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ EkaniteCa2ThSi8O20
Caⓘ FluoriteCaF2
Caⓘ Calcium Amphibole Subgroup var. HornblendeAnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Caⓘ TitaniteCaTiO(SiO4)
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3A
Caⓘ Calcium Amphibole SubgroupAnCa2(C2+5-mCm3+)(Si8-(n+m)Al(n+m))W2
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ TitaniteCaTiO(SiO4)
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ IlmeniteFe2+TiO3
ThThorium
Thⓘ EkaniteCa2ThSi8O20

Other Regions, Features and Areas containing this locality

AsiaContinent
Indian PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sameera, K. A. Geeth; Hauzenberger, Christoph A.; Fernando, G. W. A. Rohan; Škoda, Radek; Dharmapriya, Prasanna L.; Chanmuang N., Chutimun; Nasdala, Lutz (2026) Formation of ekanite in “antiskarn” by carbonatitic melt infiltration into charnockitic gneiss, Ampegama, southwestern Highland Complex, Sri Lanka. Contributions to Mineralogy and Petrology, 181 (7). p.52. doi:10.1007/s00410-026-02330-z
Quick NavTopMineral ListRock TypesOther RegionsReferences
 
and/or  
Mindat.orgÂŽ is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. MindatÂŽ and mindat.orgÂŽ are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are Š OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 19, 2026 15:55:54 Page updated: September 1, 2026 17:21:47
Go to top of page