Description: Occurs as twinned crystals in clay of the Rincon Formation, Northward from the contact with the Vaqueros. The crystals are well-formed individuals up to 3 inches (7.5 cm) long.

References:

Murdoch, Joseph; Webb, Robert Wallace (1966) Minerals of California, Centennial Volume (1866-1966) - California Division of Mines and Geology, Bulletin 189. California Division of Mines and Geology. 559 pp.

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Gypsum var. Selenite

Formula: CaSO₄ · 2H₂O

Locality: Drake Radio Tower area, Canada del Ore, Hollister Ranch, Gaviota Pass, Santa Ynez Mountains, Santa Barbara County, California, USA

Habit: Fishtail-twinned crystals

Description: Occurs as twinned crystals in clay of the Rincon Formation, Northward from the contact with the Vaqueros. The crystals are well-formed individuals up to 3 inches (7.5 cm) long.

References:

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Pyrite

Formula: FeS₂

Locality: Lake Los Carneros, Goleta, Santa Ynez Mountains, Santa Barbara County, California, USA

References:

Observed by Zach BerghorstIdentified by Zach Berghorst: Visual Identification

ⓘ Talc

Formula: Mg₃Si₄O₁₀(OH)₂

Locality: Unspecified Talc occurrence [1], Santa Ynez Mountains, Santa Barbara County, California, USA

References:

Heizer, Robert Fleming & Adan E. Treganza (1944), Mines and quarries of the Indians of California, California Division of Mines Report 40: 291-359

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 27.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	var. Selenite	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Talc	9.EC.05	Mg₃Si₄O₁₀(OH)₂

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
H	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Calcite	CaCO₃
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
O	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Mg	Magnesium
Mg	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Si	Silicon
Si	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
S	Sulfur
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Pyrite	FeS₂
S	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Fe	Iron
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Pyrite	FeS₂

Localities in this Region

USA

California
- Santa Barbara County
  - Santa Ynez Mountains
    - Gaviota Pass
      - Hollister Ranch
        Canada del Ore
        ⭔Drake Radio Tower area
    - ⭔Goleta

USA

California
- Santa Barbara County
  - Santa Ynez Mountains

Other Regions, Features and Areas containing this locality

North AmericaContinent

Coast MountainsMountain Range

North America Plate

California BorderlandAccretionary Complex
Franciscan DomainDomain
Southern California Borderland BasinsBasin

Pacific PlateTectonic Plate

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Santa Ynez Mountains, Santa Barbara County, California, USAiRegional Level TypesSanta Ynez MountainsMountain Range Santa Barbara CountyCounty CaliforniaState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Santa Ynez Mountains, Santa Barbara County, California, USA i
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