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La Garita, Alajuela Province, Costa Ricai
Regional Level Types
La Garita- not defined -
Alajuela ProvinceProvince
Costa RicaCountry

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Latitude & Longitude (WGS84): 9° 59' 11'' North , 84° 20' 39'' West
Latitude & Longitude (decimal): 9.98639,-84.34444
GeoHash:G#: d1u0b9ynz
Köppen climate type:Am : Tropical monsoon climate
Nearest Settlements:
PlacePopulationDistance
Atenas7,014 (2016)4.0km
Carrillos4,258 (2018)9.1km
Santiago2,107 (2018)11.6km
Esquipulas1,512 (2018)11.7km
Naranjo11,853 (2016)13.0km


Zeolites are found in a talus slope of a quarry at La Garita. Breccia cavities, to 15 cm across, are commonly lined with bladed thomsonite, chabazite, calcite, and other minerals.

Regions containing this locality

Central AmericaRegion
Panama PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Analcime
Formula: Na(AlSi2O6) · H2O
Anorthite
Formula: Ca(Al2Si2O8)
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
'Biotite'
Calcite
Formula: CaCO3
Reference: Tschernich, R. (1992): Zeolites of the World, p.100,323,493; Micro Probe Vol 7 No. 7 Spring 1993
'Chabazite'
Habit: twinned crystals to 3mm in diameter
Colour: colorless
Reference: Tschernich, R. (1992): Zeolites of the World, p.100,323,493; Micro Probe Vol 7 No. 7 Spring 1993
'Fayalite-Forsterite Series'
Fluorapophyllite-(K)
Formula: KCa4(Si8O20)(F,OH) · 8H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993
Gyrolite
Formula: NaCa16Si23AlO60(OH)8 · 14H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Reference: Micro Probe Volume VII Number 7 Spring 1993
Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
Habit: radiating fan like groups of thin bladed crystals up to 4mm in diameter; Radial groups of prisms with the forms {100}, {010}, {001} and {110}
Colour: colorless to gray
Reference: Tschernich, R. (1992): Zeolites of the World, p.100,323,493; Micro Probe Vol 7 No. 7 Spring 1993

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Analcime9.GB.05Na(AlSi2O6) · H2O
Anorthite9.FA.35Ca(Al2Si2O8)
var: Bytownite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
var: Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Fluorapophyllite-(K)9.EA.15KCa4(Si8O20)(F,OH) · 8H2O
Gyrolite9.EE.30NaCa16Si23AlO60(OH)8 · 14H2O
Mesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
Thomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Biotite'-
'Chabazite'-
'Fayalite-Forsterite Series'-

List of minerals arranged by Dana 8th Edition classification

Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
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
Fluorapophyllite-(K)72.3.1.1KCa4(Si8O20)(F,OH) · 8H2O
Group 73 - PHYLLOSILICATES Condensed Tetrahedral Sheets
Condensed Tetrahedral Sheets with double and single layers
Gyrolite73.2.2c.1NaCa16Si23AlO60(OH)8 · 14H2O
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Mesolite77.1.5.4Na2Ca2Si9Al6O30 · 8H2O
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
Anorthite-Ca(Al2Si2O8)
var: Bytownite-(Ca,Na)[Al(Al,Si)Si2O8]
var: Labradorite-(Ca,Na)[Al(Al,Si)Si2O8]
'Biotite'-
'Chabazite'-
'Fayalite-Forsterite Series'-
Thomsonite-Ca-NaCa2[Al5Si5O20] · 6H2O

List of minerals for each chemical element

HHydrogen
H Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
H Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
H GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
H MesoliteNa2Ca2Si9Al6O30 · 8H2O
H AnalcimeNa(AlSi2O6) · H2O
CCarbon
C CalciteCaCO3
OOxygen
O CalciteCaCO3
O Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
O Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
O GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
O MesoliteNa2Ca2Si9Al6O30 · 8H2O
O AnalcimeNa(AlSi2O6) · H2O
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
O Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
O AnorthiteCa(Al2Si2O8)
FFluorine
F Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
NaSodium
Na Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Na GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Na MesoliteNa2Ca2Si9Al6O30 · 8H2O
Na AnalcimeNa(AlSi2O6) · H2O
Na Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Na Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
AlAluminium
Al Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Al GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Al MesoliteNa2Ca2Si9Al6O30 · 8H2O
Al AnalcimeNa(AlSi2O6) · H2O
Al Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Al Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Al AnorthiteCa(Al2Si2O8)
SiSilicon
Si Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Si Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Si GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Si MesoliteNa2Ca2Si9Al6O30 · 8H2O
Si AnalcimeNa(AlSi2O6) · H2O
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Si Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Si AnorthiteCa(Al2Si2O8)
KPotassium
K Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
CaCalcium
Ca CalciteCaCO3
Ca Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Ca Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Ca GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Ca MesoliteNa2Ca2Si9Al6O30 · 8H2O
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca AnorthiteCa(Al2Si2O8)
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Miocene
5.333 - 23.03 Ma



ID: 3188297
Cenozoic volcanic rocks

Age: Miocene (5.333 - 23.03 Ma)

Lithology: Intermediate-felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Tschernich, R.W. (1992) Zeolites of the World: 100, 323, 493.
Tschernich, R.W. (1993) Zeolites of Costa Rica. Micro Probe, 7(7), 3-9.


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