| Actinolite |  |
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| Formula: | ☐{Ca2}{(Mg,Fe2+)5}(Si8O22)(OH)2 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: Actinolite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Albite |  |
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| Formula: | NaAlSi3O8 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2011. Albite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Amphibole Supergroup var: Byssolite |  |
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| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2011. Byssolite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| 'Apatite' |  |
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| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2009. Apatite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Augite | |
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| Formula: | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Locality: | Moinho do Catulão, Gaeiras, Óbidos, Leiria District, Portugal |
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| Calcite |  |
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| Formula: | CaCO3 |
| Localities: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal
Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal
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| Photo: © 2006 Rafael Nunes. Calcite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Chalcopyrite |  |
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| Formula: | CuFeS2 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2009. Chalcopyrite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Dolomite |  |
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| Formula: | CaMg(CO3)2 |
| Localities: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal
Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal
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| Photo: © Rui Nunes 2005. Dolomite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Epidote |  |
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| Formula: | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Localities: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal
Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal
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| Photo: © Martins da Pedra. Epidote from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Gypsum |  |
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| Formula: | CaSO4 · 2H2O |
| Reference: | Rui Nunes |
| Localities: | Recorded from at least 2 other localities in this region. |
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| Photo: © 2006 Rafael Nunes. Gypsum from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Gypsum var: Selenite |  |
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| Localities: | Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal
Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal
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| Photo: © Rui Nunes 2006. Selenite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Halite | |
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| Formula: | NaCl |
| Reference: | Rui Nunes collection |
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| Hematite |  |
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| Formula: | Fe2O3 |
| Localities: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal
Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal
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| Photo: © Rui Nunes 2006. Hematite from Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Ilmenite |  |
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| Formula: | Fe2+TiO3 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Martins da Pedra. Ilmenite from Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Magnetite |  |
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| Formula: | Fe2+Fe3+2O4 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2007. Magnetite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Malachite |  |
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| Formula: | Cu2(CO3)(OH)2 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2008. Malachite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Natrolite | |
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| Formula: | Na2Al2Si3O10 · 2H2O |
| Locality: | Moinho do Catulão, Gaeiras, Óbidos, Leiria District, Portugal |
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| 'Olivine' | |
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| Formula: | (Mg,Fe2+)2SiO4 |
| Locality: | Moinho do Catulão, Gaeiras, Óbidos, Leiria District, Portugal |
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| Opal var: Diatomite |  |
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| Reference: | Rui Nunes |
| Localities: | Recorded from at least 1 other locality in this region. |
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| Photo: © Rui Nunes 2011. Diatomite from Quinta do Jardim Mine, São Pedro, Óbidos, Leiria District, Portugal |
| Prehnite |  |
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| Formula: | Ca2Al2Si3O10(OH)2 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2010. Prehnite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Pyrite |  |
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| Formula: | FeS2 |
| Reference: | Rui Nunes |
| Localities: | Recorded from at least 2 other localities in this region. |
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| Photo: © Rui Nunes 2006. Pyrite from Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Quartz |  |
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| Formula: | SiO2 |
| Localities: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal
Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal
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| Photo: © Rui Nunes 2010. Quartz from Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Quartz var: Chalcedony |  |
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| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2006. Chalcedony from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Quartz var: Smoky Quartz |  |
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| Formula: | SiO2 |
| Locality: | Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2008. Smoky Quartz from Avarela Nr 2 quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Siderite |  |
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| Formula: | FeCO3 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2005. Siderite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Titanite |  |
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| Formula: | CaTi(SiO4)O |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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| Photo: © Rui Nunes 2011. Titanite from Avarela quarry, Santa Maria, Óbidos, Leiria District, Portugal |
| Tremolite | |
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| Formula: | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| Locality: | Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria District, Portugal |
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27 entries listed. 20 valid minerals.
Mineral and Locality Search
