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Mason Co., Washington, USA i
Regional Level Types
Mason Co. County
Washington State
USA Country

Regional Level Types
Mason Co.	County
Washington	State
USA	Country

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Independence Day at Robertson Pit

Robertson Pit, Mason Co., Washington, USA

Fresh Open pocket in pillow basalt

Lucky Strike Pit, Mason Co., Washington, USA

Natrolite, etc.

Mason Co., Washington, USA

Independence Day at Robertson Pit

Robertson Pit, Mason Co., Washington, USA

Fresh Open pocket in pillow basalt

Lucky Strike Pit, Mason Co., Washington, USA

Natrolite, etc.

Mason Co., Washington, USA

Independence Day at Robertson Pit

Robertson Pit, Mason Co., Washington, USA

Fresh Open pocket in pillow basalt

Lucky Strike Pit, Mason Co., Washington, USA

Neighbouring regions:

Jefferson Co., Washington, USA

Grays Harbor Co., Washington, USA

Pierce Co., Washington, USA

Thurston Co., Washington, USA

Kitsap Co., Washington, USA

Type:

County

Largest Settlements:

Place	Population
Shelton	9,834 (2011)
Belfair	3,931 (2011)
Allyn	1,963 (2011)
Grapeview	954 (2015)
Union	631 (2011)
Skokomish	617 (2011)

Mindat Locality ID:

17537

Long-form identifier:

mindat:1:2:17537:0

GUID (UUID V4):

b302c0d4-66c7-4144-a206-8cd291ef6a1d

Other Languages:

View 34 more...

French:

comté de Mason, Washington, États-Unis

German:

Mason County, Washington, Vereinigte Staaten

Italian:

contea di Mason, Washington, Stati Uniti d'America

Russian:

Мейсон, Вашингтон, Соединённые Штаты Америки

Simplified Chinese:

梅森县, 华盛顿州, 美国

Spanish:

Condado de Mason, Washington, Estados Unidos

Albanian:

Mason County, Uashington, Shtetet e Bashkuara të Amerikës

Arabic:

مقاطعة ماسون, واشنطن, الولايات المتحدة

Basque:

Mason konderria , Washington

Bavarian:

Mason County, Washington, Vaoanigte Stootn

Bishnupriya Manipuri:

মেশন কাউন্টি, ৱাশিংটন, তিলপারাষ্ট্র

Bulgarian:

Мейсън, Вашингтон, Съединени американски щати

Cebuano:

Mason County , Washington

Czech:

Mason County, Washington, Spojené státy americké

Dutch:

Mason County, Washington, Verenigde Staten

Esperanto:

Kantono Mason, Vaŝingtonio

Farsi/Persian:

شهرستان ماسون، واشینگتن, واشینگتن, ایالات متحده آمریکا

Georgian:

მეისონის ოლქი, ვაშინგტონის შტატი, ამერიკის შეერთებული შტატები

Hebrew:

מחוז מייסון, וושינגטון, ארצות הברית

Hungarian:

Mason megye, Washington, Amerikai Egyesült Államok

Japanese:

メイソン郡, ワシントン州, アメリカ合衆国

Low Saxon/Low German:

Mason County, Washington, USA

Min Dong Chinese:

Mason Gông, Washington

Minnan / Hokkien-Taiwanese:

Mason Kūn

Nepali:

मेसोन काउन्टी, संयुक्त राज्य अमेरिका

Norwegian:

Mason County, Washington, USA

Polish:

Hrabstwo Mason, Waszyngton, Stany Zjednoczone

Portuguese:

Condado de Mason, Washington, Estados Unidos

Romanian:

Comitatul Mason, Washington, Statele Unite ale Americii

Sardinian:

contea de Mason, Washington, Istados Unidos de Amèrica

Serbian:

Mason County, Вашингтон, Сједињене Америчке Државе

Serbo-Croatian:

Mason County, Washington, Sjedinjene Američke Države

Swedish:

Mason County, Washington, USA

Traditional Chinese:

梅森郡, 華盛頓州, 美國

Turkish:

Mason, Washington, Amerika Birleşik Devletleri

Ukrainian:

Мейсон, Вашингтон, Сполучені Штати Америки

Urdu:

میسن کاؤنٹی، واشنگٹن, ریاست واشنگٹن, ریاستہائے متحدہ امریکا

Vietnamese:

Quận Mason, Washington, Chủng Quốc Hoa Kỳ

Waray:

Condado han Mason, Washington, Estados Unidos

Western Punjabi:

میسن کاؤنٹی، واشنگٹن, واشنگٹن, امریکہ

No description has been added for this locality. Can you add one?

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.

ⓘ Barite (Barytes)

ⓘ Copper

ⓘ Manganese

Mineral List

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

30 valid minerals.

Detailed Mineral List:

ⓘ Alleghanyite

Formula: Mn²⁺₅(SiO₄)₂(OH)₂

Locality: Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.39

Analcime

Robertson Pit, Mason Co., Washington, USA

ⓘ Analcime

Formula: Na(AlSi₂O₆) · H₂O

Localities:

LeBar Ridge, Mason Co., Washington, USA
Lake Cushman Zeolite Occurrence, Mason Co., Washington, USA
Robertson Pit, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.41

Apophyllite Group

Lucky Strike Pit, Mason Co., Washington, USA

ⓘ 'Apophyllite Group'

Formula: AB₄[Si₈O₂₂]X · 8H₂O

Locality: Lucky Strike Pit, Mason Co., Washington, USA

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.

Reference: Toby Seims Collection

ⓘ Azurite

Formula: Cu₃(CO₃)₂(OH)₂

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: ```Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990

ⓘ Baryte

Formula: BaSO₄

Locality: Maple Creek Prospect, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.54

Bementite

Mason Co., Washington, USA

ⓘ Bementite

Formula: Mn₇Si₆O₁₅(OH)₈

Localities:

Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Apex Prospect, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Black Hump Mine, Mason Co., Washington, USA

Reference: Huntting, M. (1956): Inventory of Washington Minerals, Part II, Metallic Minerals, Vol. 1; Cannon, B. (1975): Minerals of Washington, p.56; Lasmanis, R. Et Al (1990): Metal Mines of Washington-Preliminary Report

Calcite, etc.

Robertson Pit, Mason Co., Washington, USA

ⓘ Calcite

Formula: CaCO₃

Localities:

Mount Lincoln, Mason Co., Washington, USA
Robertson Pit, Mason Co., Washington, USA
Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Lucky Strike Pit, Mason Co., Washington, USA

Reference: Minerals of Washington, Bart Cannon, 1975

ⓘ Calcite var. Manganese-bearing Calcite

Formula: (Ca,Mn)CO₃

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: ```Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990

Chabazite, etc.

Robertson Pit, Mason Co., Washington, USA

ⓘ 'Chabazite'

Locality: Robertson Pit, Mason Co., Washington, USA

Reference: Tschernich, R. (1992): Zeolites of the World, 71

ⓘ Chalcocite

Formula: Cu₂S

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: ```Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990

ⓘ Chalcopyrite

Formula: CuFeS₂

Localities:

Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Black Tail Prospect, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.77

ⓘ 'Chlorite Group'

Locality: Lucky Strike Pit, Mason Co., Washington, USA

Description: Not attractive, in fact occasionally forms an annoying druzy layer that is near impossible to take off.

Reference: Eric He's Collection

ⓘ Copper

Formula: Cu

Localities:

Habit: flakes; arborecent masses to 2"by 4"

Reference: Huntting, M. (1956): Inventory of Washington Minerals, Part II, Metallic Minerals, Vol. 1; Cannon, B. (1975): Minerals of Washington, p.77; Lasmanis, R. Et Al (1990): Metal Mines of Washington-Preliminary Report

ⓘ Cuprite

Formula: Cu₂O

Localities:

Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Habit: crusts

Reference: Huntting, M. (1956): Inventory of Washington Minerals, Part II, Metallic Minerals, Vol. 1; Cannon, B. (1975): Minerals of Washington, p.77,80; Lasmanis, R. Et Al (1990): Metal Mines of Washington-Preliminary Report

ⓘ Cuprite var. Chalcotrichite

Formula: Cu₂O

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: `Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Minerals of Washington, B. Cannon, p.80, 1975; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990.

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

Locality: Mount Ellinor, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.86

ⓘ 'Feldspar Group'

Locality: Lake Cushman Zeolite Occurrence, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.41

ⓘ Grossular

Formula: Ca₃Al₂(SiO₄)₃

Locality: Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.39

ⓘ Grossular var. Hibschite

Formula: Ca₃Al₂(SiO₄)_3-x(OH)_4x

Locality: Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.39

ⓘ Hematite

Formula: Fe₂O₃

Locality: Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Pardee, J.T. 1921 "Deposits of manganese ore in Montana, Utah, Oregon, and Washington" Contributions to Economic Geology

Heulandite Subgroup

Lucky Strike Pit, Mason Co., Washington, USA

ⓘ 'Heulandite Subgroup'

Localities:

LeBar Ridge, Mason Co., Washington, USA
Lucky Strike Pit, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.41

Ice

Shelton, Mason Co., Washington, USA

ⓘ Ice

Formula: H₂O

Locality: Shelton, Mason Co., Washington, USA

Reference: Brittany Burkhardt observations

ⓘ Jacobsite

Formula: Mn²⁺Fe³⁺₂O₄

Localities:

Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Apex Prospect, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Minerals of Washington, Bart Cannon, 1975

ⓘ Johannsenite

Formula: CaMn²⁺Si₂O₆

Locality: Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Minerals of Washington, Bart Cannon, 1975

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

Locality: Mount Lincoln, Mason Co., Washington, USA

Reference: Minerals of Washington, Bart Cannon, 1975

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Locality: Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Metal Mines of Washington-Preliminary Report; Derkey, Joseph, Lasmanis

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

ⓘ Mesolite

Formula: Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O

Localities:

Robertson Pit, Mason Co., Washington, USA
Lucky Strike Pit, Mason Co., Washington, USA

Reference: Tschernich, R. (1992): Zeolites of the World, 71

Natrolite, etc.

Robertson Pit, Mason Co., Washington, USA

ⓘ Natrolite

Formula: Na₂Al₂Si₃O₁₀ · 2H₂O

Locality: Robertson Pit, Mason Co., Washington, USA

Reference: Rocks & Min.: 63:24-28; Tschernich, R. (1992): Zeolites of the World, 71

ⓘ Neotocite

Formula: (Mn,Fe,Mg)SiO₃ · H₂O

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: ```Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

Localities:

Lake Cushman Zeolite Occurrence, Mason Co., Washington, USA
Mount Ellinor, Mason Co., Washington, USA
Unspecified roadcuts, Four Stream Ridge, Mason Co., Washington, USA
Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.41

ⓘ 'Pumpellyite Subgroup'

Formula: Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Minerals of Washington, B. Cannon, 1975

ⓘ Pyrite

Formula: FeS₂

Localities:

Robertson Pit, Mason Co., Washington, USA
Lucky Strike Pit, Mason Co., Washington, USA

Reference: Rocks & Min.: 63:24-28; Tschernich, R. (1992): Zeolites of the World, 71

ⓘ Quartz

Formula: SiO₂

Localities:

Lake Cushman Zeolite Occurrence, Mason Co., Washington, USA
Unspecified roadcuts, Four Stream Ridge, Mason Co., Washington, USA
Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.41

ⓘ Quartz var. Jasper

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: ```Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990

ⓘ Rhodochrosite

Formula: MnCO₃

Localities:

Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Apex Prospect, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: `Inventory of Washington Minerals, Part II, Metalic Minerals, Vol. 1; M. Huntting, 1956; Minerals of Washington, B. Cannon, 1975; Metal Mines of Washington-Preliminary Report; R. Derkey, N. Joseph, R. Lasmanis, 1990.

ⓘ Rhodonite

Formula: CaMn₃Mn[Si₅O₁₅]

Localities:

Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA
Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Minerals of Washington, Bart Cannon, 1975

ⓘ Scolecite

Formula: CaAl₂Si₃O₁₀ · 3H₂O

Locality: LeBar Ridge, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.41

ⓘ 'Smectite Group'

Formula: A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

Locality: Robertson Pit, Mason Co., Washington, USA

Reference: Rudy Tschernich Zeolite Collection

Stilbite Subgroup

Lucky Strike Pit, Mason Co., Washington, USA

ⓘ 'Stilbite Subgroup'

Formula: M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

Localities:

LeBar Ridge, Mason Co., Washington, USA
Lucky Strike Pit, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.41

ⓘ Stilpnomelane

Formula: (K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O

Locality: Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Minerals of Washington, B. Cannon, 1975

ⓘ Tephroite

Formula: Mn²⁺₂SiO₄

Locality: Triple Trip Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Reference: Cannon, B. (1975): Minerals of Washington, p.39

Gallery:

Mn₇Si₆O₁₅(OH)₈ⓘ Bementite

Bementite, etc.

Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Bementite, etc.

Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

Bementite, etc.

Black and White Mine, North Fork of the Skokomish River Area, Mason Co., Washington, USA

M_6-7[Al_8-9Si_27-28O₇₂] · nH₂Oⓘ 'Stilbite Subgroup'

Stilbite Subgroup, etc.

Lucky Strike Pit, Mason Co., Washington, USA

Stilbite Subgroup, etc.

Lucky Strike Pit, Mason Co., Washington, USA

Stilbite Subgroup, etc.

Lucky Strike Pit, Mason Co., Washington, USA

Stilbite Subgroup, etc.

Lucky Strike Pit, Mason Co., Washington, USA

Stilbite Subgroup, etc.

Lucky Strike Pit, Mason Co., Washington, USA

Stilbite Subgroup, etc.

Lucky Strike Pit, Mason Co., Washington, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Copper	1.AA.05	Cu
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Cuprite	4.AA.10	Cu₂O
ⓘ	var. Chalcotrichite	4.AA.10	Cu₂O
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Ice	4.AA.05	H₂O
ⓘ	Jacobsite	4.BB.05	Mn²⁺Fe³⁺₂O₄
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Jasper	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Azurite	5.BA.05	Cu₃(CO₃)₂(OH)₂
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	var. Manganese-bearing Calcite	5.AB.05	(Ca,Mn)CO₃
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
ⓘ	Rhodochrosite	5.AB.05	MnCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
Group 9 - Silicates
ⓘ	Alleghanyite	9.AF.45	Mn²⁺₅(SiO₄)₂(OH)₂
ⓘ	Analcime	9.GB.05	Na(AlSi₂O₆) · H₂O
ⓘ	Bementite	9.EE.05	Mn₇Si₆O₁₅(OH)₈
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Grossular	9.AD.25	Ca₃Al₂(SiO₄)₃
ⓘ	var. Hibschite	9.AD.25	Ca₃Al₂(SiO₄)_3-x(OH)_4x
ⓘ	Johannsenite	9.DA.15	CaMn²⁺Si₂O₆
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Mesolite	9.GA.05	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
ⓘ	Natrolite	9.GA.05	Na₂Al₂Si₃O₁₀ · 2H₂O
ⓘ	Neotocite	9.ED.20	(Mn,Fe,Mg)SiO₃ · H₂O
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Rhodonite	9.DK.05	CaMn₃Mn[Si₅O₁₅]
ⓘ	Scolecite	9.GA.05	CaAl₂Si₃O₁₀ · 3H₂O
ⓘ	Stilpnomelane	9.EG.40	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
ⓘ	Tephroite	9.AC.05	Mn²⁺₂SiO₄
Unclassified Minerals, Rocks, etc.
ⓘ	'Apophyllite Group'	-	AB₄[Si₈O₂₂]X · 8H₂O
ⓘ	'Chabazite'	-
ⓘ	'Chlorite Group'	-
ⓘ	'Feldspar Group'	-
ⓘ	'Heulandite Subgroup'	-
ⓘ	'Pumpellyite Subgroup'	-	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
ⓘ	'Smectite Group'	-	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
ⓘ	'Stilbite Subgroup'	-	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
H	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
H	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
H	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
H	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
H	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
H	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
H	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
H	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
H	ⓘ Neotocite	(Mn,Fe,Mg)SiO₃ · H₂O
H	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
H	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
H	ⓘ Ice	H₂O
C	Carbon
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Calcite	CaCO₃
C	ⓘ Rhodochrosite	MnCO₃
C	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
C	ⓘ Calcite var. Manganese-bearing Calcite	(Ca,Mn)CO₃
O	Oxygen
O	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
O	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
O	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Cuprite	Cu₂O
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Cuprite var. Chalcotrichite	Cu₂O
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
O	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
O	ⓘ Tephroite	Mn₂²⁺SiO₄
O	ⓘ Baryte	BaSO₄
O	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
O	ⓘ Jacobsite	Mn²⁺Fe₂³⁺O₄
O	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Calcite	CaCO₃
O	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
O	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
O	ⓘ Rhodochrosite	MnCO₃
O	ⓘ Johannsenite	CaMn²⁺Si₂O₆
O	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
O	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
O	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	ⓘ Neotocite	(Mn,Fe,Mg)SiO₃ · H₂O
O	ⓘ Calcite var. Manganese-bearing Calcite	(Ca,Mn)CO₃
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
O	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
O	ⓘ Ice	H₂O
Na	Sodium
Na	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Na	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Na	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Na	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Mg	Magnesium
Mg	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Mg	ⓘ Neotocite	(Mn,Fe,Mg)SiO₃ · H₂O
Al	Aluminium
Al	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Al	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Al	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Al	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Al	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Al	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Al	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Si	Silicon
Si	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Si	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Si	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
Si	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
Si	ⓘ Tephroite	Mn₂²⁺SiO₄
Si	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
Si	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Si	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Si	ⓘ Johannsenite	CaMn²⁺Si₂O₆
Si	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Si	ⓘ Neotocite	(Mn,Fe,Mg)SiO₃ · H₂O
Si	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Si	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Si	ⓘ Apophyllite Group	AB₄[Si₈O₂₂]X · 8H₂O
S	Sulfur
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Baryte	BaSO₄
S	ⓘ Pyrite	FeS₂
S	ⓘ Chalcocite	Cu₂S
K	Potassium
K	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Ca	Calcium
Ca	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
Ca	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Ca	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Ca	ⓘ Johannsenite	CaMn²⁺Si₂O₆
Ca	ⓘ Calcite var. Manganese-bearing Calcite	(Ca,Mn)CO₃
Ca	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Ca	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Mn	Manganese
Mn	ⓘ Alleghanyite	Mn₅²⁺(SiO₄)₂(OH)₂
Mn	ⓘ Tephroite	Mn₂²⁺SiO₄
Mn	ⓘ Bementite	Mn₇Si₆O₁₅(OH)₈
Mn	ⓘ Jacobsite	Mn²⁺Fe₂³⁺O₄
Mn	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
Mn	ⓘ Rhodochrosite	MnCO₃
Mn	ⓘ Johannsenite	CaMn²⁺Si₂O₆
Mn	ⓘ Neotocite	(Mn,Fe,Mg)SiO₃ · H₂O
Mn	ⓘ Calcite var. Manganese-bearing Calcite	(Ca,Mn)CO₃
Fe	Iron
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Jacobsite	Mn²⁺Fe₂³⁺O₄
Fe	ⓘ Stilpnomelane	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆ · nH₂O
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Neotocite	(Mn,Fe,Mg)SiO₃ · H₂O
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Hematite	Fe₂O₃
Cu	Copper
Cu	ⓘ Copper	Cu
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Cuprite	Cu₂O
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Cuprite var. Chalcotrichite	Cu₂O
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
Ba	Barium
Ba	ⓘ Baryte	BaSO₄

Fossils

There are 5 fossil localities from the PaleoBioDB database within this region.

BETA TEST - These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

23.0 Ma (Oligocene)

Oldest Fossil Listed

38.0 Ma (Eocene)

Stratigraphic Units

Unit	No. Occurrences	Age
Lincoln Creek	10	23.03 - 20.44 Ma (Miocene)
Lincoln Creek - middle	1	28.1 - 23.03 Ma (Cenozoic)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Colus genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : *Colus*	38 - 28.1 Ma Paleogene
Cetacea order	Animalia : Chordata : Mammalia : Cetacea	38 - 28.1 Ma Paleogene
Plotopteridae family	Animalia : Chordata : Aves : Suliformes : Plotopteridae	33.9 - 28.1 Ma Oligocene
Odontoceti suborder	Animalia : Chordata : Mammalia : Cetacea : Odontoceti	33.9 - 28.1 Ma Oligocene
Mytilidae family	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae	38 - 28.1 Ma Paleogene
Naticidae family	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae	38 - 28.1 Ma Paleogene
Thyasiridae family	Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae	28.1 - 23.03 Ma Cenozoic
Coenocyathus hannibali species	Animalia : Cnidaria : Anthozoa : Scleractinia : Caryophylliidae : Coenocyathus : *Coenocyathus hannibali*	38 - 33.9 Ma Paleogene
Deltocyathus insperatus species	Animalia : Cnidaria : Anthozoa : Scleractinia : Deltocyathidae : Deltocyathus : *Deltocyathus insperatus*	28.1 - 23.03 Ma Cenozoic
Caryophyllia wynoocheensis species	Animalia : Cnidaria : Anthozoa : Scleractinia : Caryophylliidae : Caryophyllia : *Caryophyllia wynoocheensis*	33.9 - 28.1 Ma Oligocene
Megokkos alaskensis species	Animalia : Arthropoda : Malacostraca : Decapoda : Camptandriidae : Megokkos : *Megokkos alaskensis*	33.9 - 28.4 Ma Oligocene
Aturia grandior species	Animalia : Mollusca : Cephalopoda : Nautilida : Aturiidae : Aturia : *Aturia grandior*	38 - 33.9 Ma Paleogene
Rhinoscymnus genus	Animalia : Chordata : Chondrichthyes : Squaliformes : Somniosidae : *Rhinoscymnus*	38 - 28.1 Ma Paleogene
Rhinoscymnus viridiadamas species	Animalia : Chordata : Chondrichthyes : Squaliformes : Somniosidae : Rhinoscymnus : *Rhinoscymnus viridiadamas*	28.1 - 23.03 Ma Cenozoic

Fossil Localities

Click to show 5 fossil localities

USA

Washington
- Mason Co.
  - Oligocene🐚 LACMVP 6290
  - Cenozoic🐚 Middle Fork Satsop River
  - Paleogene🐚 N. P. 207
  - Oligocene🐚 Vance's creek

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Mason_County,_Washington
Wikidata ID:	Q111904
GeoNames ID:	5802584

Localities in this Region

Other Regions, Features and Areas that Intersect

North America

Coast MountainsMountain Range

North America PlateTectonic Plate

Bellingham basinBasin
Cascadia DomainDomain
Siletzia DomainDomain
Western Washington–Oregon BasinsBasin

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Mason Co., Washington, USAiRegional Level TypesMason Co.County WashingtonState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mason Co., Washington, USA i
Regional Level Types
Mason Co. County
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