登录注册
Quick Links : Mindat手册The Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral MuseumsClubs & Organizations矿物展及活动The Mindat目录表设备设置The Mineral Quiz
照片搜索Photo GalleriesSearch by Color今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Photography

Denny Gulch, Denny Mountain, Snoqualmie Mining District, King County, Washington, USAi
Regional Level Types
Denny GulchMine
Denny MountainMountain
Snoqualmie Mining DistrictMining District
King CountyCounty (Historical)
WashingtonState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
47° 25' 54'' North , 121° 27' 9'' West
Latitude & Longitude (decimal):
47.43193,-121.45274
GeoHash:
G#: c23tu68z4
GRN:
N32W60
Type:
Mine
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Snoqualmie Pass311 (2011)5.9km
Tanner1,018 (2011)22.6km
Riverbend2,132 (2011)22.7km
Wilderness Rim1,523 (2017)23.8km
North Bend6,679 (2017)26.1km
Mindat Locality ID:
10550
Long-form identifier:
mindat:1:2:10550:2
GUID (UUID V4):
d157f1d2-9ead-4efd-82b0-cee2afbfb4a8
Other/historical names associated with this locality:
Denny Mine; Denny Company Mine; Denny Creek; Rockhound Gulch


The canyon off of denny creek affectionately known as "rockhound gulch" is one of the more well known mineral collecting localities in Washington. It is a skarn formed by the intrusion of the snoqualmie batholith into sedimentary rocks.


To reach Rockhound Gulch, take the Melakwa Lakes trail no. 1014. You will start on the west side of Denny Creek, cross to the east side via a large hewn log bridge, cross back to the west side where the trail descends a bank to a rock crossing. After this second crossing, the trail switchbacks up a hill, then comes back close to the creek canyon. At this point you will have a wide view of the cliffs of Low Mountain (5000 feet) on your left. Just after you see this view, the trail turns left, and a poor trial goes off the right side down into Denny Creek canyon, across a flat rock outcrop above a waterfall, to a rocky-bottomed canyon up the side of Denny Mountain. This is Rockhound Gulch.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


12 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ 'Amphibole Supergroup var. Byssolite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Calcite
Formula: CaCO3
ⓘ 'Chlorite Group'
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ Diopside
Formula: CaMgSi2O6
Habit: blocky crystals to .75 inches
Colour: greenish
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Habit: crystal sprays
Colour: dark Green
ⓘ Goethite
Formula: α-Fe3+O(OH)
ⓘ Grossular
Formula: Ca3Al2(SiO4)3
ⓘ Hematite
Formula: Fe2O3
Habit: specular
Description: Forms platy aggregates, sometimes as terminated rosettes. Often, entire pockets are filled with hematite.
ⓘ 'K Feldspar'
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
ⓘ Lepidocrocite
Formula: γ-Fe3+O(OH)
Description: The strawberry and black inclusions in the amethyst scepters are hematite. No lepidocrocite has ever been found here.
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Pyrite
Formula: FeS2
Description: Occurs (rarely) as unoxidized cubes, but more commonly as goethite pseudomorphs.
✪ Quartz
Formula: SiO2
Habit: Frequent Normal Prisms some with heamtite inclusions to a few cm. Spectacular large rare Japanese Twins to over 30 cm ear to ear
Colour: colourles to red from inclusions
Fluorescence: none
Description: The normal prisms are common but not the killer twins
✪ Quartz var. Amethyst
Formula: SiO2
Habit: doubly terminated scepters on clear quartz prisms to a few cm
Colour: strawberry purple
Description: Hematite inclusions in the Amethyst give the strawberry colour.
References:
UBC specimen
ⓘ Scheelite
Formula: Ca(WO4)

Gallery:

(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)ⓘ Epidote
Ca3Al2(SiO4)3ⓘ Grossular
Fe2O3ⓘ Hematite
SiO2ⓘ Quartz
SiO2ⓘ Quartz var. Amethyst

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.α-Fe3+O(OH)
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘvar. Amethyst4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘLepidocrocite ?4.FE.15γ-Fe3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘDiopside9.DA.15CaMgSi2O6
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Unclassified
ⓘ'K Feldspar'-
ⓘ'var. Adularia'-KAlSi3O8
ⓘ'Chlorite Group'-
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'var. Byssolite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Goethiteα-Fe3+O(OH)
Hⓘ Lepidocrociteγ-Fe3+O(OH)
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ OpalSiO2 · nH2O
Hⓘ Amphibole Supergroup var. ByssoliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CCarbon
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ Quartz var. AmethystSiO2
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ CalciteCaCO3
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ DiopsideCaMgSi2O6
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Goethiteα-Fe3+O(OH)
Oⓘ GrossularCa3Al2(SiO4)3
Oⓘ HematiteFe2O3
Oⓘ Lepidocrociteγ-Fe3+O(OH)
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ OpalSiO2 · nH2O
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ Amphibole Supergroup var. ByssoliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ Amphibole Supergroup var. ByssoliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MgMagnesium
Mgⓘ DiopsideCaMgSi2O6
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ GrossularCa3Al2(SiO4)3
Alⓘ Amphibole Supergroup var. ByssoliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SiSilicon
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ Quartz var. AmethystSiO2
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ DiopsideCaMgSi2O6
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ GrossularCa3Al2(SiO4)3
Siⓘ OpalSiO2 · nH2O
Siⓘ QuartzSiO2
Siⓘ Amphibole Supergroup var. ByssoliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SSulfur
Sⓘ PyriteFeS2
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ Amphibole Supergroup var. ByssoliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ GrossularCa3Al2(SiO4)3
Caⓘ ScheeliteCa(WO4)
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ Amphibole Supergroup var. ByssoliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Goethiteα-Fe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ Lepidocrociteγ-Fe3+O(OH)
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ MalachiteCu2(CO3)(OH)2
WTungsten
Wⓘ ScheeliteCa(WO4)

Other Regions, Features and Areas containing this locality

North America
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.

References

[1]Jackson, R., Jackson, K.L. (1974) The Rockhound's Guide to Washington: Vol.1, Jax Products, 48 pages.
Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA.pages 82, 85
Thurber, H., Miller, M., McMahan, A., Federspiel, F. (1989) Economic Appraisal of the Alpine Lakes Study Area and Additions, Washington. US Geological Survey Bulletin 1542-E, 348 pages.
Quick NavTopCommoditiesMineral ListOther RegionsReferences
 
矿物 and/or 产地  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
版权所有© mindat.org1993年至2024年，除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 - Report a bug/vulnerability Current server date and time: 2024.4.26 13:33:21 Page updated: 2024.3.23 20:12:41
Go to top of page