Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Gilsum, Cheshire County, New Hampshire, USAi
Regional Level Types
GilsumTown
Cheshire CountyCounty
New HampshireState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
00948550017272037487031.jpg
Mineral Laden Memorial at Gilsum NH

Gilsum, Cheshire County, New Hampshire, USA
09310910017272037482316.jpg
Mineral Laden Memorial at Gilsum NH

Gilsum, Cheshire County, New Hampshire, USA
03933400017272042506748.jpg
Mineral Laden Memorial at Gilsum NH BACK

Gilsum, Cheshire County, New Hampshire, USA
09688820017272042511302.jpg
Gilsum rock swap and Mining and Minerals Museum

Gilsum, Cheshire County, New Hampshire, USA
07124280017272037378633.jpg
Mineral Laden Memorial at Gilsum NH

Gilsum, Cheshire County, New Hampshire, USA
01312230017272037392068.jpg
Mineral Laden Memorial at Gilsum NH

Gilsum, Cheshire County, New Hampshire, USA
03933400017272042506748.jpg
Mineral Laden Memorial at Gilsum NH BACK

Gilsum, Cheshire County, New Hampshire, USA
09688820017272042511302.jpg
Gilsum rock swap and Mining and Minerals Museum

Gilsum, Cheshire County, New Hampshire, USA
00948550017272037487031.jpg
Mineral Laden Memorial at Gilsum NH

Gilsum, Cheshire County, New Hampshire, USA
09310910017272037482316.jpg
Mineral Laden Memorial at Gilsum NH

Gilsum, Cheshire County, New Hampshire, USA
Neighbouring regions:
Surry, Cheshire County, New Hampshire, USA
Sullivan, Cheshire County, New Hampshire, USA
Marlow, Cheshire County, New Hampshire, USA
Alstead, Cheshire County, New Hampshire, USA
Keene, Cheshire County, New Hampshire, USA
Type:
Town
Largest Settlements:
PlacePopulation
Gilsum828 (2017)
Mindat Locality ID:
17363
Long-form identifier:
mindat:1:2:17363:7
GUID (UUID V4):
0
Other Languages:
View 23 more...
French:
Gilsum, comté de Cheshire, New Hampshire, États-Unis
German:
Gilsum, Cheshire County, New Hampshire, Vereinigte Staaten
Italian:
Gilsum, contea di Cheshire, New Hampshire, Stati Uniti d'America
Simplified Chinese:
吉爾瑟姆, 赤夏縣, 新罕布什尔州, 美国
Spanish:
Gilsum, Condado de Cheshire, Nuevo Hampshire, Estados Unidos
Arabic:
غيلسوم, مقاطعة شيشاير , نيوهامبشير, الولايات المتحدة
Catalan:
Gilsum, Nou Hampshire, Estats Units d’Amèrica
Cebuano:
Gilsum, Cheshire County, New Hampshire
Chechen:
Гилсем, Нью-Гэмпшир, Америкин Цхьаьнатоьхна Штаташ
Czech:
Gilsum, Cheshire County, New Hampshire, Spojené státy americké
Dutch:
Gilsum, Cheshire County, New Hampshire, Verenigde Staten
Egyptian Arabic:
جيلسوم, نيوهامشير, امريكا
Haitian:
Gilsum, Nou Anpchi, Etazini
Irish Gaelic:
Gilsum, Contae Cheshire, New Hampshire, Stáit Aontaithe Mheiriceá
Kazakh (Cyrillic Script):
Гилсум, Нью-Гэмпшир, Америка Құрама Штаттары
Korean:
길섬, 뉴햄프셔주, 미국
Kyrgyz:
Гилсум, Нью-Хемпшир, Америка Кошмо Штаттары
Mazanderani:
گیلسوم , نیوهمشایر
Polish:
Gilsum, Hrabstwo Cheshire, New Hampshire, Stany Zjednoczone
Slovak:
Gilsum, New Hampshire, Spojené štáty
Swedish:
Gilsum, Cheshire County, New Hampshire, USA
Tatar:
Гилсем, Нью-Һәмпшир, Америка Кушма Штатлары
Turkish:
Gilsum, Cheshire, New Hampshire, Amerika Birleşik Devletleri
Ukrainian:
Гілсем, Чешир, Нью-Гемпшир, Сполучені Штати Америки
Urdu:
گلسم, چیشائر کاؤنٹی، نیو ہیمپشائر, نیو ہیمپشائر, ریاستہائے متحدہ امریکا
Volapük:
Gilsum, New Hampshire, Lamerikän
Waray:
Gilsum, Condado han Cheshire, New Hampshire, Estados Unidos
Welsh:
Gilsum, New Hampshire, Unol Daleithiau America


Gilsum is a town, incorporated in 1763.

Home of the annual Gilsum Rock Swap & Mineral Show.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

9 valid minerals.

Detailed Mineral List:

ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 11 localities in this region.
ⓘ Beryl
Formula: Be3Al2(Si6O18)
Description: gem quality
ⓘ Beryl var. Aquamarine
Formula: Be3Al2Si6O18
ⓘ Beryl var. Heliodor
Formula: Be3Al2(Si6O18)
Description: gem quality
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Feldspar Group'
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Microcline
Formula: K(AlSi3O8)
Localities: Reported from at least 11 localities in this region.
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 11 localities in this region.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 12 localities in this region.
ⓘ Quartz var. Milky Quartz
Formula: SiO2
ⓘ Quartz var. Rose Quartz
Formula: SiO2
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 12 localities in this region.
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Spodumene
Formula: LiAlSi2O6

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Rose Quartz4.DA.05SiO2
ⓘvar. Milky Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘBeryl
var. Aquamarine		9.CJ.05Be3Al2Si6O18
ⓘ9.CJ.05Be3Al2(Si6O18)
ⓘvar. Heliodor9.CJ.05Be3Al2(Si6O18)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSpodumene9.DA.30LiAlSi2O6
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMicrocline9.FA.30K(AlSi3O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Garnet Group'-X3Z2(SiO4)3

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ⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Liⓘ SpodumeneLiAlSi2O6
BeBeryllium
Beⓘ Beryl var. AquamarineBe3Al2Si6O18
Beⓘ BerylBe3Al2(Si6O18)
Beⓘ Beryl var. HeliodorBe3Al2(Si6O18)
BBoron
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
Oⓘ Beryl var. AquamarineBe3Al2Si6O18
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Monazite GroupREE(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ Quartz var. Rose QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ SpodumeneLiAlSi2O6
Oⓘ Quartz var. Milky QuartzSiO2
Oⓘ Beryl var. HeliodorBe3Al2(Si6O18)
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluorapatiteCa5(PO4)3F
NaSodium
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
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ⓘ Beryl var. AquamarineBe3Al2Si6O18
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SpodumeneLiAlSi2O6
Alⓘ Beryl var. HeliodorBe3Al2(Si6O18)
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ Beryl var. AquamarineBe3Al2Si6O18
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Quartz var. Rose QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ SpodumeneLiAlSi2O6
Siⓘ Quartz var. Milky QuartzSiO2
Siⓘ Beryl var. HeliodorBe3Al2(Si6O18)
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ Monazite GroupREE(PO4)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Gilsum,_New_Hampshire
Wikidata ID:Q607442
GeoNames ID:5086579

Localities in this Region

USA
USA

Other Regions, Features and Areas that Intersect

North AmericaContinent
North America 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.
Quick NavTopCommoditiesMineral ListFossilsOther DatabasesLocalities in RegionOther Regions
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® 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 © 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: September 4, 2026 01:49:07 Page updated: November 28, 2025 22:13:56
Go to top of page