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Laytonville Quarry (Longvale; Longvale Quarry), Laytonville, Coastal Range, Mendocino Co., California, USA

This page kindly sponsored by Keith A. Peregrine
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Latitude & Longitude (WGS84): 39° 37' 5'' North , 123° 27' 47'' West
Latitude & Longitude (decimal): 39.61806,-123.46306
GeoHash:G#: 9r01qs0zy
Locality type:Quarry
Köppen climate type:Csb : Warm-summer Mediterranean climate


A road metal quarry located in sec. 6, T20N, R14W (MD), about 5 miles S of Laytonville.

Specimens are commonly labeled as being from "Longvale" or "Longvale Quarry".

Mineralization is in blueschist metasediments of the Franciscan Formation.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Laytonville Quarry ("Longvale"; "Longvale Quarry"), Laytonville, Coastal Range, Mendocino Co., California, USA

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


32 valid minerals. 3 (TL) - type locality of valid minerals.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Habit: Stumpy, prismatic; aggregates of radiating needles.
Colour: Yellowish green
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 506; Onucki, H. and Ernst, W.G. (1969) Coexisting sodic amphiboles and sodic pyroxenes from blueschist facies metamorphic rocks. Mineralogical Association of America Special Paper 2: 245; Pemberton, H. Earl (1983), Minerals of California: 392.; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Aegirine var: Vanadian Aegirine
Formula: Na(Fe,V)Si2O6
Reference: Deer, W. A., Howie, R.A. & Zussman, J. (1997) Rock-Forming Minerals: Single-chain Silicates, Volume 2A. Geological Society of London, 1997. 668p. (p.495)
Albite
Formula: Na(AlSi3O8)
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
'Apatite'
Reference: Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Aragonite
Formula: CaCO3
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Calcite
Formula: CaCO3
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Calderite
Formula: (Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Reference: Richard Gaines e.a. (1997) Dana's New Mineralogy, p. 1044
Chalcopyrite
Formula: CuFeS2
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
'Chlorite Group'
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503; Pemberton, H. Earl (1983), Minerals of California: 492.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Description: Forms small, thin lenses in metabasalt.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503; Pemberton, H. Earl (1983), Minerals of California: 492.
'Crossite'
Habit: Prismatic
Colour: Dark bluish black
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503, 506; Pemberton, H. Earl (1983), Minerals of California: 403.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Deerite (TL)
Formula: (Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Reference: Agrell, S.O. (1964), Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California (title only), Am. Min.: 49.; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.
Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
Habit: Prismatic
Description: Occurs as small interlocking prismatic crystals from 0.2 to 1.5mm.Occurs as glaucophane schist.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503, 506; Pemberton, H. Earl (1983), Minerals of California: 403.; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 70.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Graphite
Formula: C
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Grunerite
Formula: ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Habit: Fibrous and silky crystals
Colour: Brown
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 506; Pemberton, H. Earl (1983), Minerals of California: 395.; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Howieite (TL)
Formula: Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Reference: Agrell, S.O. (1964), Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California (title only), Am.Min.: 49; CM 28 (1990), 855; HB2/1 (1995); Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Ilmenite
Formula: Fe2+TiO3
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Jadeite
Formula: Na(Al,Fe3+)Si2O6
Reference: Onucki, H. and Ernst, W.G. (1969) Coexisting sodic amphiboles and sodic pyroxenes from blueschist facies metamorphic rocks. Mineralogical Association of America Special Paper 2: 245; Pemberton, H. Earl (1983), Minerals of California: 390-391.
Kutnohorite
Formula: CaMn2+(CO3)2
Description: Ferroan variety. Occurs as granular material.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 506; Pemberton, H. Earl (1983), Minerals of California: 221.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Lawsonite
Formula: CaAl2(Si2O7)(OH)2 · H2O
Habit: Prismatic
Description: Crystals to 1.5 mm in metabasalt.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503; Pemberton, H. Earl (1983), Minerals of California: 487.; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 70.
Magnesio-riebeckite
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Reference: Onucki, H. and Ernst, W.G. (1969) Coexisting sodic amphiboles and sodic pyroxenes from blueschist facies metamorphic rocks. Mineralogical Association of America Special Paper 2: 244; Pemberton, H. Earl (1983), Minerals of California: 403.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Habit: Small, platelike, comprising layers
Colour: Pale green
Description: Crystal layers from a few mm's to about 5 cm thick.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503, 506; Pemberton, H. Earl (1983), Minerals of California: 426, 503.
'Phengite'
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Habit: Small, platelike, comprising layers
Colour: Pale green
Description: Crystal layers from a few mm's to about 5 cm thick.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503, 506; Pemberton, H. Earl (1983), Minerals of California: 426, 503.
Pumpellyite-(Mg)
Formula: Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503; Pemberton, H. Earl (1983), Minerals of California: 492.
Pyrite
Formula: FeS2
Description: Occurs as individual crystals 1 mm to 1,5 cm.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 506; Pemberton, H. Earl (1983), Minerals of California: 72.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Quartz
Formula: SiO2
Reference: Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Habit: Prismatic
Colour: Bluish black
Description: Crystals to 1 cm & 2 cm wide.Occurs as patches of prismatic crystals in schist.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503, 506; Pemberton, H. Earl (1983), Minerals of California: 403.; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 70.; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Rutile
Formula: TiO2
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Siderite
Formula: FeCO3
Reference: Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Siderite var: Manganoan Siderite
Formula: (Fe,Mn)CO3
Habit: Rhombic
Description: Occurs as small rhombic crystals.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 506; Pemberton, H. Earl (1983), Minerals of California: 212.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Colour: Orange to orange-red
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503; Pemberton, H. Earl (1983), Minerals of California: 496.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Stilpnomelane
Formula: (K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Description: Individual crystals from a few mm's to about 1 cm.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 506; Rice, S.J. (1966) A new mineral locality. California Division of Mines and Geology Mineral Information Service: 19: 7; Onucki, H. and Ernst, W.G. (1969) Coexisting sodic amphiboles and sodic pyroxenes from blueschist facies metamorphic rocks. Mineralogical Association of America Special Paper 2: 242; Pemberton, H. Earl (1983), Minerals of California: 432.; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 70.; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Stilpnomelane var: Ekmanite
Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Reference: Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Stilpnomelane var: Ferristilpnomelane
Formula: K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
Habit: Plumose and interlaminated aggregates.
Reference: Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 506; Rice, S.J. (1966) A new mineral locality. California Division of Mines and Geology Mineral Information Service: 19: 7; Onucki, H. and Ernst, W.G. (1969) Coexisting sodic amphiboles and sodic pyroxenes from blueschist facies metamorphic rocks. Mineralogical Association of America Special Paper 2: 242; Pemberton, H. Earl (1983), Minerals of California: 432.
Talc
Formula: Mg3Si4O10(OH)2
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Titanite
Formula: CaTi(SiO4)O
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Zussmanite (TL)
Formula: K(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
Reference: Agrell, S.O. (1964), Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California (title only), Am.Min.: 49; MM 43 (1980), 605; HB2/2 (1995).; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
'Aragonite'5.AB.15CaCO3
'Calcite'5.AB.05CaCO3
Kutnohorite5.AB.10CaMn2+(CO3)2
Siderite5.AB.05FeCO3
var: Manganoan Siderite5.AB.05(Fe,Mn)CO3
Group 9 - Silicates
'Aegirine'9.DA.25NaFe3+Si2O6
var: Vanadian Aegirine9.DA.25Na(Fe,V)Si2O6
'Albite'9.FA.35Na(AlSi3O8)
'Almandine'9.AD.25Fe2+3Al2(SiO4)3
'Calderite'9.AD.25(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
'Clinozoisite'9.BG.05a{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
'Deerite' (TL)9.DH.60(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Glaucophane9.DE.25◻[Na2][Mg3Al2]Si8O22(OH)2
Grunerite9.DE.05☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Howieite (TL)9.DH.65Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Jadeite9.DA.25Na(Al,Fe3+)Si2O6
Lawsonite9.BE.05CaAl2(Si2O7)(OH)2 · H2O
Magnesio-riebeckite9.DE.25◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Pumpellyite-(Mg)9.BG.20Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Riebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Stilpnomelane9.EG.40(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
var: Ekmanite9.EG.40(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
var: Ferristilpnomelane9.EG.40K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
Talc9.EC.05Mg3Si4O10(OH)2
Titanite9.AG.15CaTi(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Zussmanite (TL)9.EG.35K(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Chlorite Group'-
'Crossite'-
Garnet Group-X3Z2(SiO4)3
Phengite-KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Kutnohorite14.2.1.3CaMn2+(CO3)2
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Calderite51.4.3a.6(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Lawsonite56.2.3.1CaAl2(Si2O7)(OH)2 · H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Clinozoisite58.2.1a.4{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Pumpellyite-(Mg)58.2.2.7Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Jadeite65.1.3c.1Na(Al,Fe3+)Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Glaucophane66.1.3c.1◻[Na2][Mg3Al2]Si8O22(OH)2
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Deerite (TL)69.2.3.3(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Howieite (TL)69.2.3.1Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Talc71.2.1.3Mg3Si4O10(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined islands
Stilpnomelane74.1.1.1(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Zussmanite (TL)74.1.4.1K(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Aegirine
var: Vanadian Aegirine
-Na(Fe,V)Si2O6
'Apatite'-
Aragonite-CaCO3
'Chlorite Group'-
'Crossite'-
'Garnet Group'-X3Z2(SiO4)3
Grunerite-☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Magnesio-riebeckite-◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
'Phengite'-KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Riebeckite-◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Siderite
var: Manganoan Siderite
-(Fe,Mn)CO3
Stilpnomelane
var: Ekmanite
-(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
var: Ferristilpnomelane-K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27

List of minerals for each chemical element

HHydrogen
H Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
H Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
H Stilpnomelane (var: Ferristilpnomelane)K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
H Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
H Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
H HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
H LawsoniteCaAl2(Si2O7)(OH)2 · H2O
H Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
H Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
H Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
H Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
H TalcMg3Si4O10(OH)2
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
C GraphiteC
C KutnohoriteCaMn2+(CO3)2
C Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
C SideriteFeCO3
OOxygen
O AegirineNaFe3+Si2O6
O AlbiteNa(AlSi3O8)
O AlmandineFe32+Al2(SiO4)3
O AragoniteCaCO3
O CalciteCaCO3
O Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
O Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
O Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
O Stilpnomelane (var: Ferristilpnomelane)K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
O Garnet GroupX3Z2(SiO4)3
O Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
O Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
O HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
O IlmeniteFe2+TiO3
O JadeiteNa(Al,Fe3+)Si2O6
O KutnohoriteCaMn2+(CO3)2
O LawsoniteCaAl2(Si2O7)(OH)2 · H2O
O Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
O MagnetiteFe2+Fe23+O4
O Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
O MuscoviteKAl2(AlSi3O10)(OH)2
O PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
O Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
O QuartzSiO2
O Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
O RutileTiO2
O SideriteFeCO3
O SpessartineMn32+Al2(SiO4)3
O Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
O TalcMg3Si4O10(OH)2
O TitaniteCaTi(SiO4)O
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Aegirine (var: Vanadian Aegirine)Na(Fe,V)Si2O6
O ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
NaSodium
Na AegirineNaFe3+Si2O6
Na AlbiteNa(AlSi3O8)
Na Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Na Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Na HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Na JadeiteNa(Al,Fe3+)Si2O6
Na Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Na Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Na Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Na Aegirine (var: Vanadian Aegirine)Na(Fe,V)Si2O6
MgMagnesium
Mg Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Mg Stilpnomelane (var: Ferristilpnomelane)K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
Mg Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Mg HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Mg Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Mg PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mg Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Mg Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Mg TalcMg3Si4O10(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AlmandineFe32+Al2(SiO4)3
Al Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Al Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Al Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Al Stilpnomelane (var: Ferristilpnomelane)K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
Al Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Al HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Al JadeiteNa(Al,Fe3+)Si2O6
Al LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Al Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Al SpessartineMn32+Al2(SiO4)3
Al Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Al ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
SiSilicon
Si AegirineNaFe3+Si2O6
Si AlbiteNa(AlSi3O8)
Si AlmandineFe32+Al2(SiO4)3
Si Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Si Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Si Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Si Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Si Stilpnomelane (var: Ferristilpnomelane)K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
Si Garnet GroupX3Z2(SiO4)3
Si Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Si Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
Si HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Si JadeiteNa(Al,Fe3+)Si2O6
Si LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Si Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Si Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Si QuartzSiO2
Si Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Si SpessartineMn32+Al2(SiO4)3
Si Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Si TalcMg3Si4O10(OH)2
Si TitaniteCaTi(SiO4)O
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si Aegirine (var: Vanadian Aegirine)Na(Fe,V)Si2O6
Si ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
KPotassium
K Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
K Stilpnomelane (var: Ferristilpnomelane)K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
K Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
K ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Ca Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Ca Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Ca KutnohoriteCaMn2+(CO3)2
Ca LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Ca Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Ca Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Ca TitaniteCaTi(SiO4)O
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
VVanadium
V Aegirine (var: Vanadian Aegirine)Na(Fe,V)Si2O6
MnManganese
Mn Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Mn KutnohoriteCaMn2+(CO3)2
Mn Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
Mn SpessartineMn32+Al2(SiO4)3
Mn ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
FeIron
Fe AegirineNaFe3+Si2O6
Fe AlmandineFe32+Al2(SiO4)3
Fe Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Fe ChalcopyriteCuFeS2
Fe Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Fe Stilpnomelane (var: Ekmanite)(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Fe Stilpnomelane (var: Ferristilpnomelane)K(Fe3+,Mg,Fe2+)8(Si,Al)12(O,OH)27
Fe Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
Fe HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
Fe IlmeniteFe2+TiO3
Fe JadeiteNa(Al,Fe3+)Si2O6
Fe Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Fe MagnetiteFe2+Fe23+O4
Fe Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
Fe PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Fe PyriteFeS2
Fe Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Fe SideriteFeCO3
Fe Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Fe Aegirine (var: Vanadian Aegirine)Na(Fe,V)Si2O6
Fe ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14
CuCopper
Cu ChalcopyriteCuFeS2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Cretaceous - Jurassic
66 - 201.3 Ma



ID: 3190324
Mesozoic tectonic rocks

Age: Mesozoic (66 - 201.3 Ma)

Stratigraphic Name: Franciscan Complex

Comments: metamorphic protolith: mafic volcanics

Lithology: Shale

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Cretaceous - Jurassic
66 - 201.3 Ma



ID: 2942527
Franciscan Complex, unit 1 (Coast Ranges)

Age: Mesozoic (66 - 201.3 Ma)

Stratigraphic Name: Franciscan Complex; Dothan Formation; Honda Formation; San Luis Formation; Valentine Spring Formation

Description: Franciscan complex: Cretaceous and Jurassic sandstone with smaller amounts of shale, chert, limestone, and conglomerate. Includes Franciscan melange, except where separated--see KJfm.

Comments: Coast Ranges. Primarily Yolla Bolly, Central, and San Simeon terranes of Silberling et al. (1987). Consists primarily of variably deformed and metamorphosed graywacke, mudstone, and chert. Original map source: Saucedo, G.J., Bedford, D.R., Raines, G.L., Miller, R.J., and Wentworth, C.M., 2000, GIS Data for the Geologic Map of California, California Department of Conservation, Division of Mines and Geology, CD-ROM 2000-07, scale 1:750,000.

Lithology: Major:{sandstone,mudstone}, Minor:{chert}, Incidental:{limestone, conglomerate, greenstone, serpentinite, gabbro, amphibolite, schist, felsic volcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Agrell, S.O. (1964) Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California (title only), American Mineralogist: 49: 1507.
Agrell, S.O., M.G. Brown & McKie (1965) Deerite, howieite and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California: American Mineralogist: 50: 278.
Chesterman, C.W. (1966b) Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503, 506.
Murdoch, Joseph & Robert W. Webb (1966) Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 70, 167, 220, 239, 353, 394, 493.
Rice, S.J. (1966) A new mineral locality. California Division of Mines and Geology Mineral Information Service: 19: 7.
Onucki, H. and Ernst, W.G. (1969) Coexisting sodic amphiboles and sodic pyroxenes from blueschist facies metamorphic rocks. Mineralogical Association of America Special Paper 2: 242, 245.
Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine: 43: 363-370.
Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
Pemberton, H. Earl (1983) Minerals of California: 72, 212, 221, 390-391, 392, 395, 403, 426, 432, 487, 492, 496.
Deer, W. A., Howie, R.A. & Zussman, J. (1997) Rock-Forming Minerals: Single-chain Silicates, Volume 2A. Geological Society of London, 1997. 668p.: 495.
Gaines, Richard, e.a. (1997) Dana's New Mineralogy: 1044.


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