Club	Location	Distance
Livermore Valley Lithophiles	Livermore, California	26km
Santa Clara Valley Gem & Mineral Society	San Jose, California	37km
Mineral & Gem Society of Castro Valley	Hayward, California	50km

Mindat Locality ID:

227751

Long-form identifier:

mindat:1:2:227751:9

GUID (UUID V4):

A valley located about 7½ miles SE of Mendenhall Springs.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

ⓘ Lawsonite

1 valid mineral.

Detailed Mineral List:

ⓘ Lawsonite

Formula: CaAl₂(Si₂O₇)(OH)₂ · H₂O

Locality: Unnamed Lawsonite occurrence [2], Callahan Gulch, Alameda County, California, USA

Habit: Tabular

Description: Occurs as crystals to 5 mm diameter.

References:

[…Neues Jahrb., 1916, Band 2: 25-26]: 106, 109

Rogers, Austin Flint (1915a), Lawsonite from the central Coast Ranges of California: American Journal of Science, 4th. Series: 39: 105-112

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

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘ	Lawsonite	9.BE.05	CaAl₂(Si₂O₇)(OH)₂ · H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Lawsonite	CaAl₂(Si₂O₇)(OH)₂ · H₂O
O	Oxygen
O	ⓘ Lawsonite	CaAl₂(Si₂O₇)(OH)₂ · H₂O
Al	Aluminium
Al	ⓘ Lawsonite	CaAl₂(Si₂O₇)(OH)₂ · H₂O
Si	Silicon
Si	ⓘ Lawsonite	CaAl₂(Si₂O₇)(OH)₂ · H₂O
Ca	Calcium
Ca	ⓘ Lawsonite	CaAl₂(Si₂O₇)(OH)₂ · H₂O

Localities in this Region

USA

California
- Alameda County
  - Callahan Gulch
    - Unnamed Lawsonite occurrence [2]

Other Regions, Features and Areas containing this locality

North AmericaContinent

Coast MountainsMountain Range

North America PlateTectonic Plate

California Coast RangesAccretionary Complex
Franciscan DomainDomain

USA

California
- Diablo RangeMountain Range

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