Municipality of Leiria district.

Mining concession no. 1925 São Mamede (diatomite), Roliça parish, registered on 04-12-1935 - includede in the Quinta do Jardim mining field.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

ⓘ Opal

1 valid mineral.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Diatomite

Detailed Mineral List:

ⓘ Opal

Formula: SiO₂ · nH₂O

Locality: São Mamede Mine, Roliça, Bombarral, Leiria, Portugal

References:

Direcção Geral de Minas

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Opal	4.DA.10	SiO₂ · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Opal	SiO₂ · nH₂O
O	Oxygen
O	ⓘ Opal	SiO₂ · nH₂O
Si	Silicon
Si	ⓘ Opal	SiO₂ · nH₂O

Fossils

There are 1 fossil locality from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

151 Ma (Late Jurassic)

Oldest Fossil Listed

156 Ma (Jurassic)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Alveosepta genus	Chromista : Foraminifera : Globothalamea : Loftusiida : Hauraniidae : *Alveosepta*	155.7 - 150.8 Ma Jurassic
Conicospirillina genus	Chromista : Foraminifera : Tubothalamea : Spirillinida : Spirillinidae : *Conicospirillina*	155.7 - 150.8 Ma Jurassic
Labyrinthina genus	Chromista : Foraminifera : Globothalamea : Loftusiida : Mesoendothyridae : *Labyrinthina*	155.7 - 150.8 Ma Jurassic
Placochlaenia genus	Animalia : Porifera : Hexactinellida : *Placochlaenia*	155.7 - 150.8 Ma Jurassic
Tubiphytes genus	Nigriporellidae : *Tubiphytes*	155.7 - 150.8 Ma Jurassic
Girvanella genus	Bacteria : Cyanobacteria : Cyanophyceae : Porostromataceae : *Girvanella*	155.7 - 150.8 Ma Jurassic
Marinella genus	Plantae : Rhodophyta : Florideophyceae : Rhodogorgonales : Elianellaceae : *Marinella*	155.7 - 150.8 Ma Jurassic
Cladocoropsis mirabilis species	Animalia : Porifera : Demospongiae : Axinellida : Cladocoropsidae : Cladocoropsis : *Cladocoropsis mirabilis*	155.7 - 150.8 Ma Jurassic
Corynella quenstedti species	Animalia : Porifera : Calcarea : Endostomatidae : Endostoma : *Corynella quenstedti*	155.7 - 150.8 Ma Jurassic
Cayeuxia genus	Plantae : Chlorophyta : Ulvophyceae : Bryopsidales : Halimedaceae : *Cayeuxia*	155.7 - 150.8 Ma Jurassic

Fossil Localities

Click to show 1 fossil locality

Portugal

Leiria
- Bombarral
  - Roliça
    - Jurassic🐚 Columbeira

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Bombarral
Wikidata ID:	Q891820
GeoNames ID:	8010545

Localities in this Region

Portugal

Leiria
- Bombarral
  - ⭔Bombarral e Vale Covo
  - ⭔Carvalhal
  - ⭔Pó
  - ⭔Roliça
    - São Mamede Mine

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate

Iberian PeninsulaPeninsula

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.

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