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Lucky Strike Pit, Mason County, Washington, USAi
Regional Level Types
Lucky Strike PitQuarry
Mason CountyCounty
WashingtonState
USACountry

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PhotosMapsSearch
05687790017757573592760.jpg
Solid pocket

Lucky Strike Pit, Mason County, Washington, USA
03359690017272042818137.jpg
Fresh Open pocket in pillow basalt

Lucky Strike Pit, Mason County, Washington, USA
03885510017476123049233.jpg
Stilbite Subgroup, etc.

Lucky Strike Pit, Mason County, Washington, USA
05197230017757231629577.jpg
Solid pocket

Lucky Strike Pit, Mason County, Washington, USA
03359690017272042818137.jpg
Fresh Open pocket in pillow basalt

Lucky Strike Pit, Mason County, Washington, USA
09183520017471721212328.jpg
Stilbite Subgroup, etc.

Lucky Strike Pit, Mason County, Washington, USA
01348590017757573602779.jpg
Solid pocket

Lucky Strike Pit, Mason County, Washington, USA
03359690017272042818137.jpg
Fresh Open pocket in pillow basalt

Lucky Strike Pit, Mason County, Washington, USA
Latitude & Longitude (WGS84):
47° 7' 49'' North , 123° 6' 31'' West
Latitude & Longitude (decimal):
47.13045,-123.10871
GRN:
N32W61
Type:
Quarry
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Shelton9,834 (2011)9.4km
McCleary1,618 (2017)14.6km
Olympia50,302 (2017)18.8km
Tumwater19,190 (2017)20.4km
Skokomish617 (2011)22.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Washington Agate and Mineral SocietyOlympia, Washington19km
Mindat Locality ID:
292491
Long-form identifier:
mindat:1:2:292491:8
GUID (UUID V4):
0
Other/historical names associated with this locality:
Lucky Strike Quarry


A basalt quarry near Kamilche. This quarry has produced a few very limited pockets of arguably the finest apophyllite specimens in Washington. Stilbite and apophyllite are abundant; heulandite and calcite are less so. Other minerals occur occasionally.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


4 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Apophyllite Group'
Formula: AB4[Si8O20]X · 8H2O
Habit: Small xls are cubic, larger xls often show pyramid faces.
Colour: Colorless to light green
Description: Apophyllite is one of the rarer minerals at this quarry. Disco ball-like aggregates have been found before without terminations.
ⓘ Calcite
Formula: CaCO3
Habit: Cubes(twinned), rhombs
Colour: Colorless to golden
Description: Occurs as beautiful gemmy xls perched on other minerals
ⓘ 'Chlorite Group'
Description: Not attractive, in fact occasionally forms an annoying druzy layer that is near impossible to take off.
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
References:
Aidan Cerenzie CollectionIdentified by Aidan Cerenzie: Visual Identification
ⓘ Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
ⓘ Pyrite
Formula: FeS2
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘMesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Apophyllite Group'-AB4[Si8O20]X · 8H2O
ⓘ'Chlorite Group'-
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Oⓘ CalciteCaCO3
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
NaSodium
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
AlAluminium
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Siⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SSulfur
Sⓘ PyriteFeS2
KPotassium
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ MesoliteNa2Ca2Si9Al6O30 · 8H2O
FeIron
Feⓘ PyriteFeS2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

He, E. (2026) Personal communication to Paul Brandes.
Garrett, Romaine (2014) Gem Trails of Washington (2nd ed.). Gem Guides Book Co. 248 pp.under "Robertson Pit"
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