A gypsum occurrence located in secs. 16 & 31, T15S, R12E, MDM, 10.8 km (6.7 miles) NNE of the Tumey Hills (coordinates of record) and 16.7 km (10.4 miles) SE of Panoche Mountain (coordinates of record), S of Panoche Creek, on the eastern margin of the Diablo Range, near Interstate highway 5 (W of).

NOTE: This locality is not listed in the USGS MRDS database.

Mineralization is gypsum in loosely consolidated siltstones and clays.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Bassanite

ⓘ Gypsum

2 valid minerals.

Detailed Mineral List:

ⓘ Bassanite

Formula: Ca(SO₄) · 0.5H₂O

Description: As chalky alterations of gypsum. Locally abundant.

References:

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

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

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

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	Bassanite	7.CD.45	Ca(SO₄) · 0.5H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Bassanite	Ca(SO₄) · 0.5H₂O
H	ⓘ Gypsum	CaSO₄ · 2H₂O
O	Oxygen
O	ⓘ Bassanite	Ca(SO₄) · 0.5H₂O
O	ⓘ Gypsum	CaSO₄ · 2H₂O
S	Sulfur
S	ⓘ Bassanite	Ca(SO₄) · 0.5H₂O
S	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	Calcium
Ca	ⓘ Bassanite	Ca(SO₄) · 0.5H₂O
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

California Coast RangesAccretionary Complex
Great Valley BasinBasin
Great Valley DomainDomain
San Joaquin BasinBasin

USA

California
- Diablo RangeMountain Range

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References

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

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