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Penetentia Creek, San Jose, Santa Clara County, California, USAi
Regional Level Types
Penetentia CreekCreek
San JoseCity
Santa Clara CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° North , 121° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~11km
GRN:
N25W70
Type:
Creek
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
210508
Long-form identifier:
mindat:1:2:210508:9
GUID (UUID V4):
0


A zeolite occurrence near Penetentia Creek.

NOTE: Penetentia Creek runs from the Diablo Range, through Alum Rock Park and into the Creekland section of San Jose.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


Detailed Mineral List:

ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Habit: Tabular crystals on (010) and elongate along the c-axis; drusy.
Description: Occurs in the Briones Sandstone.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Unclassified
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
OOxygen
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
NaSodium
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
AlAluminium
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
SiSilicon
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
KPotassium
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Murata, K.J. and Whiteley, K.R. (1973) Zeolites in the Miocene Brones sandstone and related formations of the central Coast Ranges, California. USGS Jour. Res.: 1: 255-265
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
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