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Pedernal, Bajo Chacones, San José Province, Costa Ricai
Regional Level Types
Pedernal- not defined -
Bajo Chacones- not defined -
San José ProvinceProvince
Costa RicaCountry

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Key
03631840014948768919807.jpg
Zeolite Veins cutting volcanic ash 1993

Pedernal, Bajo Chacones, San José Province, Costa Rica
00490040014948768936397.jpg
Tschernichite roadcut Pedernal 1993 b

Pedernal, Bajo Chacones, San José Province, Costa Rica
03631840014948768919807.jpg
Zeolite Veins cutting volcanic ash 1993

Pedernal, Bajo Chacones, San José Province, Costa Rica
00490040014948768936397.jpg
Tschernichite roadcut Pedernal 1993 b

Pedernal, Bajo Chacones, San José Province, Costa Rica
03631840014948768919807.jpg
Zeolite Veins cutting volcanic ash 1993

Pedernal, Bajo Chacones, San José Province, Costa Rica
Latitude & Longitude (WGS84):
9° 48' 33'' North , 84° 19' 40'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Santiago8,292 (2016)4.4km
San Rafael Abajo27,419 (2016)4.8km
Tejar22,433 (2018)12.5km
Palmichal1,545 (2018)13.8km
Colón9,687 (2016)15.1km


Zeolites are found in clay-lined vesicles in the Upper Miocene andesite conglomerates of the La Cruz Formation along the road north of Pedernal (2 km al NE de Pedernal). They were exposed by a slide which removed the vegetation in 1992.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Detailed Mineral List:

'Apophyllite'
Reference: Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Calcite
Formula: CaCO3
Reference: Rudy Tschernich; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Reference: Rudy Tschernich; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Cowlesite
Formula: CaAl2Si3O10 · 6H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Epistilbite
Formula: CaAl2Si6O16 · 5H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
'Erionite'
Reference: Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Garronite-Ca
Formula: Na2Ca5Al12Si20O64 · 27H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Goethite
Formula: α-Fe3+O(OH)
Reference: Micro Probe Volume VII Number 7 Spring 1993
Goosecreekite
Formula: Ca[Al2Si6O16] · 5H2O
Reference: Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
'Heulandite'
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
'Lévyne'
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Mordenite
Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Offretite
Formula: KCaMg(Si13Al5)O36 · 15H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Okenite
Formula: Ca10Si18O46 · 18H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
'Phillipsite'
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Scolecite
Formula: CaAl2Si3O10 · 3H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993
'Stilbite subgroup'
Reference: Rudy Tschernich; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Todorokite
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].
Tschernichite
Formula: (Ca,Na2)[Al2Si4O12] · 4-8H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993; Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Todorokite4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Chabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Cowlesite9.GG.05CaAl2Si3O10 · 6H2O
Epistilbite9.GD.45CaAl2Si6O16 · 5H2O
Garronite-Ca9.GC.05Na2Ca5Al12Si20O64 · 27H2O
Goosecreekite9.GB.25Ca[Al2Si6O16] · 5H2O
Mesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
Mordenite9.GD.35(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Offretite9.GD.25KCaMg(Si13Al5)O36 · 15H2O
Okenite9.EA.40Ca10Si18O46 · 18H2O
Scolecite9.GA.05CaAl2Si3O10 · 3H2O
Thomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
Tschernichite9.GF.30(Ca,Na2)[Al2Si4O12] · 4-8H2O
Unclassified Minerals, Rocks, etc.
'Apophyllite'-
'Erionite'-
'Heulandite'-
'Lévyne'-
'Phillipsite'-
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB3X7
Todorokite7.8.1.1(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 3-, 4-, or 5-membered rings and 8-membered rings
Okenite72.3.2.5Ca10Si18O46 · 18H2O
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Chabazite-Ca77.1.2.1(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Cowlesite77.1.5.8CaAl2Si3O10 · 6H2O
Epistilbite77.1.6.2CaAl2Si6O16 · 5H2O
Garronite-Ca77.1.3.3Na2Ca5Al12Si20O64 · 27H2O
Goosecreekite77.1.7.3Ca[Al2Si6O16] · 5H2O
'Lévyne'77.1.2.8
Mesolite77.1.5.4Na2Ca2Si9Al6O30 · 8H2O
Mordenite77.1.6.1(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Offretite77.1.2.4KCaMg(Si13Al5)O36 · 15H2O
Scolecite77.1.5.5CaAl2Si3O10 · 3H2O
Tschernichite77.1.8.2(Ca,Na2)[Al2Si4O12] · 4-8H2O
Unclassified Minerals, Mixtures, etc.
'Apophyllite'-
'Erionite'-
'Heulandite'-
'Phillipsite'-
'Stilbite subgroup'-
Thomsonite-Ca-NaCa2[Al5Si5O20] · 6H2O

List of minerals for each chemical element

HHydrogen
H CowlesiteCaAl2Si3O10 · 6H2O
H EpistilbiteCaAl2Si6O16 · 5H2O
H Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
H Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
H MesoliteNa2Ca2Si9Al6O30 · 8H2O
H ScoleciteCaAl2Si3O10 · 3H2O
H OkeniteCa10Si18O46 · 18H2O
H Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
H Goethiteα-Fe3+O(OH)
H Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2O
H Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
H OffretiteKCaMg(Si13Al5)O36 · 15H2O
H Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
H GoosecreekiteCa[Al2Si6O16] · 5H2O
CCarbon
C CalciteCaCO3
OOxygen
O CowlesiteCaAl2Si3O10 · 6H2O
O EpistilbiteCaAl2Si6O16 · 5H2O
O Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
O Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
O MesoliteNa2Ca2Si9Al6O30 · 8H2O
O ScoleciteCaAl2Si3O10 · 3H2O
O OkeniteCa10Si18O46 · 18H2O
O Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
O Goethiteα-Fe3+O(OH)
O Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2O
O Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
O OffretiteKCaMg(Si13Al5)O36 · 15H2O
O Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
O CalciteCaCO3
O GoosecreekiteCa[Al2Si6O16] · 5H2O
NaSodium
Na Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Na Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Na MesoliteNa2Ca2Si9Al6O30 · 8H2O
Na Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Na Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2O
Na Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Na Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
MgMagnesium
Mg Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mg OffretiteKCaMg(Si13Al5)O36 · 15H2O
AlAluminium
Al CowlesiteCaAl2Si3O10 · 6H2O
Al EpistilbiteCaAl2Si6O16 · 5H2O
Al Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Al Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Al MesoliteNa2Ca2Si9Al6O30 · 8H2O
Al ScoleciteCaAl2Si3O10 · 3H2O
Al Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Al Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2O
Al Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Al OffretiteKCaMg(Si13Al5)O36 · 15H2O
Al Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Al GoosecreekiteCa[Al2Si6O16] · 5H2O
SiSilicon
Si CowlesiteCaAl2Si3O10 · 6H2O
Si EpistilbiteCaAl2Si6O16 · 5H2O
Si Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Si Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Si MesoliteNa2Ca2Si9Al6O30 · 8H2O
Si ScoleciteCaAl2Si3O10 · 3H2O
Si OkeniteCa10Si18O46 · 18H2O
Si Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2O
Si Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Si OffretiteKCaMg(Si13Al5)O36 · 15H2O
Si Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Si GoosecreekiteCa[Al2Si6O16] · 5H2O
KPotassium
K Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
K Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
K OffretiteKCaMg(Si13Al5)O36 · 15H2O
K Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
CaCalcium
Ca CowlesiteCaAl2Si3O10 · 6H2O
Ca EpistilbiteCaAl2Si6O16 · 5H2O
Ca Garronite-CaNa2Ca5Al12Si20O64 · 27H2O
Ca Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Ca MesoliteNa2Ca2Si9Al6O30 · 8H2O
Ca ScoleciteCaAl2Si3O10 · 3H2O
Ca OkeniteCa10Si18O46 · 18H2O
Ca Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Ca Tschernichite(Ca,Na2)[Al2Si4O12] · 4-8H2O
Ca Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Ca OffretiteKCaMg(Si13Al5)O36 · 15H2O
Ca Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Ca CalciteCaCO3
Ca GoosecreekiteCa[Al2Si6O16] · 5H2O
MnManganese
Mn Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
FeIron
Fe Goethiteα-Fe3+O(OH)
SrStrontium
Sr Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
BaBarium
Ba Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Tschernich, R.W. and Boyd, R. (1992) Preliminary report on the second occurrence of Tschernichite. Micro Probe, 7(6), 4-6.
Tschernich, R.W. (1993) Epistilbite and associated minerals from Pedernal, Costa Rica. Micro Probe, 7(7), 10-14.
Zeledón, L.A. (2004) Zeolitas del Valle Central de Costa Rica y sus alrededores. Revista Geológica de América Central, 31: 67-80 [in Spanish].

Other Regions, Features and Areas containing this locality

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